/* roulang page: index */
:root {
  --bg-page: #F6F3FA;
  --surface-card: #FFFFFF;
  --ink-strong: #221A33;
  --ink-muted: #655C75;
  --line: #E3DDF0;
  --brand-main: #6A3DF6;
  --brand-deep: #3C1A96;
  --accent-sun: #FFB72C;
  --accent-mint: #2FD6A8;
  --danger: #F4614A;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 24px;
  --shadow-sm: 0 6px 18px rgba(77, 46, 142, 0.07);
  --shadow-md: 0 8px 24px rgba(77, 46, 142, 0.09);
  --shadow-lg: 0 14px 38px rgba(80, 48, 150, 0.14);
  --bs-gutter-x: 20px;
  --transition: all .25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--ink-strong);
  font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-main);
}

img {
  max-width: 100%;
  display: block;
}

button,
input {
  font: inherit;
}

.container {
  max-width: 1200px;
}

.section {
  padding: 72px 0;
}

.section-head {
  margin-bottom: 34px;
}

.section-label {
  display: inline-block;
  padding: 3px 14px;
  border-radius: 999px;
  background: #EFE9FF;
  color: var(--brand-main);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
}

.section-title {
  margin: 12px 0 8px;
  font-size: clamp(1.7rem, 2.5vw, 2.35rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .01em;
}

.section-title:before {
  display: inline-block;
  content: "";
  width: 28px;
  height: 5px;
  margin-right: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand-main), var(--accent-sun));
  vertical-align: middle;
}

.section-desc {
  color: var(--ink-muted);
  font-size: 16px;
  max-width: 680px;
  margin-bottom: 0;
}

.btn {
  border-radius: 10px;
  font-weight: 600;
  padding: .65rem 1.35rem;
  min-height: 42px;
  transition: var(--transition);
  box-shadow: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible,
.form-control:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(255, 183, 44, .35);
}

.btn-primary {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--brand-main);
  --bs-btn-border-color: var(--brand-main);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: #5831DC;
  --bs-btn-hover-border-color: #5831DC;
  --bs-btn-active-color: #fff;
  --bs-btn-active-bg: #4726B8;
  --bs-btn-active-border-color: #4726B8;
}

.btn-outline-primary {
  --bs-btn-color: var(--brand-main);
  --bs-btn-border-color: var(--brand-main);
  --bs-btn-hover-bg: var(--brand-main);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-border-color: var(--brand-main);
  --bs-btn-active-bg: var(--brand-deep);
  --bs-btn-active-border-color: var(--brand-deep);
}

.btn-light {
  --bs-btn-bg: #fff;
  --bs-btn-border-color: #fff;
  --bs-btn-hover-bg: #F1ECFC;
  --bs-btn-hover-border-color: #E5DCFF;
  --bs-btn-hover-color: var(--brand-main);
  --bs-btn-active-bg: #E2D8FF;
  --bs-btn-active-border-color: #E2D8FF;
}

.btn-outline-light {
  --bs-btn-color: #fff;
  --bs-btn-border-color: rgba(255,255,255,.55);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: rgba(255,255,255,.16);
  --bs-btn-hover-border-color: #fff;
  --bs-btn-active-bg: rgba(255,255,255,.24);
  --bs-btn-active-border-color: #fff;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(248, 246, 252, .92);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid rgba(227, 221, 240, .75);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding-top: 8px;
  padding-bottom: 8px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo:hover {
  color: var(--ink-strong);
}

.logo-badge {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: linear-gradient(145deg, #7A50FF, #3C1A96);
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 20px rgba(93, 55, 215, .28);
}

.logo-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink-strong);
}

.logo-text span {
  color: var(--brand-main);
}

.header-search {
  flex: 1;
  max-width: 400px;
}

.search-form {
  position: relative;
}

.search-form input {
  width: 100%;
  height: 44px;
  padding: 0 50px 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 14px;
  color: var(--ink-strong);
  transition: var(--transition);
}

.search-form input:focus {
  outline: none;
  border-color: var(--brand-main);
  box-shadow: 0 0 0 4px rgba(106, 61, 246, .12);
}

.search-form button {
  position: absolute;
  right: 5px;
  top: 5px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--brand-main);
  color: #fff;
  cursor: pointer;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--brand-deep);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-actions .btn {
  min-height: 42px;
  padding: .4rem 1.05rem;
  font-size: 14px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 10px;
  border-radius: 999px;
}

.icon-btn:hover {
  color: var(--brand-main);
  background: #EFE9FF;
}

.channel-bar {
  border-top: 1px solid rgba(227, 221, 240, .75);
  background: rgba(255, 255, 255, .46);
}

.channel-bar-inner {
  min-height: 54px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 6px 0;
  scrollbar-width: none;
}

.channel-bar-inner::-webkit-scrollbar {
  display: none;
}

.channel-item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border: 1px solid rgba(227, 221, 240, .9);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}

.channel-item:hover,
.channel-item:focus {
  color: var(--brand-main);
  border-color: var(--brand-main);
  background: rgba(239, 233, 255, .5);
}

.channel-item.active {
  background: var(--brand-main);
  color: #fff;
  border-color: var(--brand-main);
  box-shadow: 0 8px 18px rgba(106, 61, 246, .22);
}

.channel-item.active:hover {
  color: #fff;
  background: var(--brand-deep);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 80px 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(100deg, rgba(31, 11, 84, .92) 0%, rgba(60, 26, 150, .68) 46%, rgba(29, 17, 74, .5) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
}

.hero-bg:after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -36%;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 183, 44, .22), transparent 62%);
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 740px;
}

.hero-title {
  margin: 14px 0 20px;
  color: #fff;
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.22;
  letter-spacing: .01em;
}

.hero-sub {
  max-width: 640px;
  color: rgba(255, 255, 255, .84);
  font-size: 17px;
  line-height: 1.85;
  margin-bottom: 28px;
}

.hero-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-mini {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-mini span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  color: rgba(255, 255, 255, .86);
  background: rgba(255, 255, 255, .08);
}

/* ===== 卡片通用 ===== */
.feed-card,
.topic-link,
.post-card,
.channel-wide,
.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: var(--transition);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.feed-card:hover,
.topic-link:hover,
.post-card:hover,
.channel-wide:hover,
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(106, 61, 246, .24);
  color: inherit;
}

.post-media {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #EAE5F4;
  display: block;
}

.post-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.feed-card:hover .post-media img,
.topic-link:hover .post-media img,
.post-card:hover .post-media img,
.channel-wide:hover .post-media img,
.feature-card:hover .post-media img {
  transform: scale(1.04);
}

.topic-link {
  display: block;
  height: 100%;
}

.topic-link .topic-content {
  padding: 17px 18px 20px;
}

.topic-link h3,
.post-card h3,
.channel-wide h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.5;
}

.topic-link p,
.post-card p,
.channel-wide p,
.feature-card p {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}

.topic-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.topic-top .tag-chip {
  display: inline-block;
  padding: 4px 12px;
  background: #EFE9FF;
  color: var(--brand-main);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.topic-note {
  font-size: 12px;
  color: var(--brand-main);
  background: rgba(106, 61, 246, .08);
  border-radius: 999px;
  padding: 3px 10px;
}

/* 合集目录区 */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.topic-link .post-media {
  position: relative;
}

.topic-link .post-caption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  color: #fff;
  background: rgba(34, 26, 51, .62);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
}

/* 编辑精选 */
.featured-wrap {
  display: grid;
  grid-template-columns: 1.25fr .85fr;
  gap: 22px;
  align-items: stretch;
}

.featured-main {
  position: relative;
}

.featured-main .post-media {
  aspect-ratio: 16/9;
}

.featured-main-body {
  padding: 24px;
}

.featured-main-body h3 {
  font-size: 22px;
  margin-bottom: 10px;
  font-weight: 750;
}

.featured-main-body h3 a:hover {
  color: var(--brand-main);
}

.post-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-muted);
}

.post-meta-row .tag-chip {
  background: #EFE9FF;
  color: var(--brand-main);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.feature-side-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.feature-stack-card {
  display: flex;
  align-items: stretch;
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-stack-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(106, 61, 246, .22);
}

.feature-stack-card .post-media {
  width: 42%;
  aspect-ratio: 4/3;
  flex-shrink: 0;
}

.feature-stack-card .stack-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-stack-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}

.stack-meta {
  font-size: 13px;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-main);
}

.read-more:hover {
  color: var(--brand-deep);
}

/* 平台使用要点 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px 26px;
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  margin-bottom: 18px;
  background: #EFE9FF;
  color: var(--brand-main);
  font-size: 25px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

/* 最新动态区 */
.latest-feed {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.latest-item {
  display: flex;
  align-items: stretch;
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.latest-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(106, 61, 246, .22);
}

.latest-thumb {
  width: 148px;
  min-width: 148px;
  aspect-ratio: 4/3;
  border-radius: 10px;
  overflow: hidden;
  margin-right: 18px;
  background: linear-gradient(135deg, #E7DDFF, #F7F2FF);
  display: flex;
  align-items: center;
  justify-content: center;
}

.latest-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.latest-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.latest-title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 8px;
}

.latest-title:hover {
  color: var(--brand-main);
}

.latest-summary {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.latest-foot {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.latest-cat,
.latest-date {
  font-size: 12px;
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.latest-cat {
  background: #EFE9FF;
  color: var(--brand-main);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.latest-more {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--brand-main);
  font-size: 13px;
  font-weight: 600;
}

.latest-more:hover {
  color: var(--brand-deep);
  gap: 8px;
}

.empty-state {
  text-align: center;
  background: #F3F0FA;
  border: 1px dashed #B9A5F2;
  border-radius: 18px;
  padding: 56px 20px;
}

.empty-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  background: #fff;
  border-radius: 20px;
  color: var(--brand-main);
  font-size: 28px;
  margin: 0 auto 18px;
  box-shadow: var(--shadow-sm);
}

.empty-state p {
  font-size: 16px;
  color: var(--ink-strong);
  margin-bottom: 6px;
}

.empty-state small {
  display: block;
  color: var(--ink-muted);
  margin-bottom: 20px;
}

/* 延伸频道入口 */
.wide-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.channel-wide {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 18px 20px;
}

.channel-wide .post-media {
  width: 230px;
  min-width: 230px;
  aspect-ratio: 16/9;
  border-radius: 12px;
  flex-shrink: 0;
}

.channel-wide-content {
  flex: 1;
}

.channel-wide-content h3 {
  font-size: 20px;
  margin-bottom: 6px;
}

.channel-arrow {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--brand-main);
  font-size: 16px;
  flex-shrink: 0;
  margin-left: 8px;
}

.channel-wide:hover .channel-arrow {
  background: var(--brand-main);
  color: #fff;
  border-color: var(--brand-main);
}

/* 收藏/分享 CTA */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--brand-deep);
  color: #fff;
  border-radius: 30px;
  padding: 52px 52px;
  box-shadow: 0 18px 46px rgba(60, 26, 150, .22);
}

.cta-band:after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(110deg, rgba(20, 8, 48, .36), rgba(60, 26, 150, .14));
  background-size: cover;
  background-position: center;
  background-image: url("/assets/images/backpic/back-3.png");
  opacity: .18;
  z-index: 0;
}

.cta-row {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.cta-title {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 8px;
}

.cta-desc {
  color: rgba(255, 255, 255, .82);
  max-width: 560px;
  margin-bottom: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* FAQ */
.faq-wrapper {
  max-width: 940px;
  margin: 0 auto;
}

.accordion-item {
  border: 0;
  margin-bottom: 12px;
  background: transparent;
  border-radius: 14px !important;
  overflow: hidden;
}

.accordion-button {
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-radius: 14px !important;
  color: var(--ink-strong);
  font-weight: 700;
  font-size: 16px;
  padding: 20px 24px;
  box-shadow: none;
}

.accordion-button::after {
  color: var(--brand-main);
}

.accordion-button:not(.collapsed) {
  background: #EFE9FF;
  color: var(--brand-main);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(106, 61, 246, .14);
}

.accordion-body {
  background: var(--surface-card);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 14px 14px;
  color: var(--ink-muted);
  padding: 20px 24px 24px;
  line-height: 1.85;
}

.accordion-body strong {
  color: var(--ink-strong);
}

.faq-index {
  display: inline-flex;
  min-width: 42px;
  color: var(--brand-main);
  font-weight: 800;
  letter-spacing: .04em;
}

/* 页脚 */
.site-footer {
  margin-top: 72px;
  background: #22103C;
  color: rgba(255, 255, 255, .76);
}

.footer-main {
  padding: 64px 0 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-brand .logo-badge {
  width: 40px;
  height: 40px;
  font-size: 18px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.85;
  max-width: 330px;
  margin-bottom: 20px;
}

.footer-title {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li+li {
  margin-top: 8px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  padding: 2px 0;
}

.footer-links a:hover {
  color: #fff;
}

.footer-links a i {
  color: var(--accent-sun);
  font-size: 12px;
}

.footer-note {
  background: rgba(255, 255, 255, .06);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .65);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, .55);
  font-size: 13px;
}

.footer-bottom-inner a {
  color: rgba(255, 255, 255, .8);
}

.footer-bottom-inner a:hover {
  color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .header-search {
    display: none;
  }

  .collection-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-wrap {
    grid-template-columns: 1fr;
  }

  .feature-side-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .feature-stack-card {
    flex-direction: column;
  }

  .feature-stack-card .post-media {
    width: 100%;
  }

  .channel-wide {
    flex-direction: column;
    align-items: flex-start;
  }

  .channel-wide .post-media {
    width: 100%;
    min-width: 0;
  }

  .channel-arrow {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 48px 0;
  }

  .brand-logo .logo-text {
    font-size: 16px;
  }

  .logo-badge {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .header-main {
    min-height: 64px;
  }

  .header-actions .icon-btn {
    display: none;
  }

  .hero {
    min-height: 70vh;
    padding: 60px 0;
  }

  .hero-title {
    font-size: clamp(1.7rem, 6.5vw, 2.6rem);
  }

  .collection-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-side-list {
    grid-template-columns: 1fr;
  }

  .latest-item {
    flex-direction: column;
  }

  .latest-thumb {
    width: 100%;
    min-width: 0;
    aspect-ratio: 16/9;
    margin-right: 0;
    margin-bottom: 14px;
  }

  .cta-band {
    padding: 36px 26px;
  }

  .footer-main {
    padding: 46px 0 30px;
  }
}

@media (max-width: 520px) {
  .header-actions .btn {
    font-size: 13px;
    padding: .4rem .8rem;
    min-height: 42px;
  }

  .collection-grid {
    grid-template-columns: 1fr;
  }

  .post-media {
    aspect-ratio: 16/10;
  }

  .featured-main-body h3 {
    font-size: 19px;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .section-title:before {
    width: 20px;
  }
}

/* roulang page: article */
:root {
            --bg-page: #F6F3FA;
            --surface-card: #fff;
            --ink-strong: #221A33;
            --ink-muted: #655C75;
            --line: #E3DDF0;
            --brand-main: #6A3DF6;
            --brand-deep: #3C1A96;
            --accent-sun: #FFB72C;
            --accent-mint: #2FD6A8;
            --danger: #F4614A;
            --radius-s: 8px;
            --radius-m: 14px;
            --radius-l: 24px;
            --shadow-soft: 0 8px 24px rgba(77, 46, 142, 0.08);
            --shadow-hover: 0 12px 32px rgba(80, 48, 150, 0.14);
            --container-w: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--ink-strong);
            background: var(--bg-page);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--brand-main);
            text-decoration: none;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--brand-deep);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            --bs-gutter-x: 20px;
        }

        @media (min-width: 1200px) {
            .container {
                max-width: var(--container-w);
            }
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent-sun);
            outline-offset: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            border-radius: 10px;
            font-weight: 600;
            font-size: .95rem;
            transition: background .25s ease, transform .2s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
        }

        .btn-primary {
            background: var(--brand-main);
            border: 1px solid var(--brand-main);
            color: #fff;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--brand-deep);
            border-color: var(--brand-deep);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 22px rgba(60, 26, 150, 0.18);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .8);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline-brand {
            border: 1px solid var(--brand-main);
            color: var(--brand-main);
            background: transparent;
        }

        .btn-outline-brand:hover {
            background: var(--brand-main);
            border-color: var(--brand-main);
            color: #fff;
            transform: translateY(-1px);
        }

        .chip {
            display: inline-flex;
            align-items: center;
            width: fit-content;
            height: 26px;
            padding: 0 12px;
            border-radius: 999px;
            background: #EFE9FF;
            color: var(--brand-main);
            font-size: .78rem;
            font-weight: 600;
            line-height: 1;
        }

        .chip-hot {
            background: rgba(255, 183, 44, .18);
            color: #A36B00;
        }

        .chip-new {
            background: rgba(47, 214, 168, .18);
            color: #0B8C69;
        }

        /* ======= Header ======= */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(246, 243, 250, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }

        .header-main {
            display: flex;
            align-items: center;
            gap: 26px;
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex: 0 0 auto;
            color: var(--ink-strong);
        }

        .brand-logo:hover {
            color: var(--ink-strong);
        }

        .logo-badge {
            width: 40px;
            height: 40px;
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: inherit;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(145deg, var(--brand-main), var(--brand-deep));
            box-shadow: 0 6px 18px rgba(106, 61, 246, .25);
        }

        .logo-text {
            font-size: 1.42rem;
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--brand-main);
        }

        .header-search {
            flex: 1;
            display: flex;
            justify-content: center;
            min-width: 0;
        }

        .search-form {
            position: relative;
            width: 100%;
            max-width: 380px;
        }

        .search-form input {
            width: 100%;
            height: 42px;
            border: 1px solid var(--line);
            border-radius: 999px;
            background: var(--surface-card);
            color: var(--ink-strong);
            padding: 0 48px 0 18px;
            font-size: .9rem;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .search-form input::placeholder {
            color: #B4ACC5;
        }

        .search-form input:focus {
            outline: none;
            border-color: var(--brand-main);
            box-shadow: 0 0 0 4px rgba(106, 61, 246, .1);
        }

        .search-form button {
            position: absolute;
            right: 4px;
            top: 4px;
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 0;
            border-radius: 50%;
            background: var(--brand-main);
            color: #fff;
            font-size: .85rem;
            transition: background .2s ease;
        }

        .search-form button:hover {
            background: var(--brand-deep);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 0 0 auto;
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 42px;
            padding: 0 14px;
            border-radius: 10px;
            color: var(--ink-muted);
            font-size: .88rem;
            font-weight: 600;
            background: transparent;
            border: 1px solid transparent;
            transition: background .2s ease, color .2s ease, border-color .2s ease;
        }

        .icon-btn:hover {
            color: var(--brand-main);
            background: #F0EAFD;
            border-color: var(--line);
        }

        .channel-bar {
            background: rgba(255, 255, 255, .62);
            border-top: 1px solid rgba(227, 221, 240, .6);
        }

        .channel-bar-inner {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            overflow-x: auto;
            white-space: nowrap;
            scrollbar-width: thin;
            scrollbar-color: var(--line) transparent;
        }

        .channel-bar-inner::-webkit-scrollbar {
            height: 4px;
        }

        .channel-bar-inner::-webkit-scrollbar-thumb {
            background: var(--line);
            border-radius: 999px;
        }

        .channel-item {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            height: 38px;
            padding: 0 18px;
            border: 1px solid transparent;
            border-radius: 999px;
            background: transparent;
            color: var(--ink-muted);
            font-size: .9rem;
            font-weight: 600;
            transition: all .2s ease;
        }

        .channel-item i {
            font-size: .92rem;
            opacity: .85;
        }

        .channel-item:hover {
            color: var(--brand-main);
            border-color: rgba(106, 61, 246, .18);
            background: rgba(239, 233, 255, .65);
        }

        .channel-item.active {
            background: var(--brand-main);
            color: #fff;
            border-color: var(--brand-main);
            box-shadow: 0 6px 16px rgba(106, 61, 246, .24);
        }

        .channel-item.active:hover {
            color: #fff;
            background: var(--brand-main);
        }

        /* ======= Article Breadcrumb ======= */
        .article-page {
            background: var(--bg-page);
            padding-bottom: 80px;
        }

        .breadcrumb-wrap {
            padding: 22px 0 8px;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
            font-size: .83rem;
            color: var(--ink-muted);
        }

        .breadcrumb-list li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list li+li::before {
            content: "/";
            color: #C8BFD9;
            font-size: .85rem;
        }

        .breadcrumb-list a {
            color: var(--ink-muted);
        }

        .breadcrumb-list a:hover {
            color: var(--brand-main);
        }

        .breadcrumb-list .active {
            color: var(--ink-strong);
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 320px;
            white-space: nowrap;
        }

        /* ======= Article Header ======= */
        .article-head-wrap {
            padding: 12px 0 24px;
        }

        .article-head-card {
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            background: var(--surface-card);
            box-shadow: var(--shadow-soft);
            padding: 48px 56px 40px;
            position: relative;
            overflow: hidden;
        }

        .article-head-card::after {
            content: "";
            position: absolute;
            top: -90px;
            right: -80px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(106, 61, 246, .1), rgba(106, 61, 246, 0) 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .head-top-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }

        .article-cat {
            display: inline-flex;
            align-items: center;
            height: 30px;
            padding: 0 14px;
            border-radius: 999px;
            background: var(--brand-main);
            color: #fff;
            font-size: .8rem;
            font-weight: 600;
        }

        .head-badges {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-title {
            font-size: clamp(1.7rem, 3vw, 2.6rem);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: .01em;
            color: var(--ink-strong);
            margin: 0 0 18px;
            position: relative;
            z-index: 1;
        }

        .article-lead {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--ink-muted);
            margin: 0 0 24px;
            padding-left: 18px;
            border-left: 3px solid var(--accent-sun);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            padding-top: 18px;
            border-top: 1px solid var(--line);
            font-size: .88rem;
            color: var(--ink-muted);
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta-item i {
            color: var(--brand-main);
            opacity: .75;
        }

        /* ======= Article Body ======= */
        .article-content-wrap {
            padding-top: 10px;
        }

        .article-column {
            margin: 0 auto;
            max-width: 860px;
        }

        .article-content-card {
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: calc(var(--radius-l) + 4px);
            box-shadow: var(--shadow-soft);
            padding: 52px 60px;
            margin-bottom: 32px;
        }

        .article-main-body {
            color: var(--ink-strong);
            font-size: 16px;
            line-height: 1.9;
            word-break: break-word;
        }

        .article-main-body > * + * {
            margin-top: 1.2em;
        }

        .article-main-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            line-height: 1.5;
            margin: 1.8em 0 .8em;
            padding-left: 14px;
            border-left: 4px solid var(--brand-main);
            color: var(--ink-strong);
        }

        .article-main-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 1.7em 0 .7em;
            color: var(--ink-strong);
        }

        .article-main-body p {
            margin: 0 0 1.1em;
        }

        .article-main-body a {
            color: var(--brand-main);
            border-bottom: 1px solid rgba(106, 61, 246, .3);
            transition: border-color .2s ease;
        }

        .article-main-body a:hover {
            border-bottom-color: var(--brand-deep);
            color: var(--brand-deep);
        }

        .article-main-body img {
            display: block;
            width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 1.6em 0;
            box-shadow: var(--shadow-soft);
        }

        .article-main-body ul,
        .article-main-body ol {
            padding-left: 1.4em;
            margin: 1.2em 0;
        }

        .article-main-body li {
            margin: .45em 0;
        }

        .article-main-body blockquote {
            margin: 1.5em 0;
            padding: 18px 22px;
            border-radius: 12px;
            background: #F1ECFB;
            border-left: 4px solid var(--brand-main);
            color: var(--ink-muted);
            font-style: normal;
        }

        .article-main-body blockquote p {
            margin: 0;
        }

        .article-main-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6em 0;
            font-size: .95rem;
        }

        .article-main-body th,
        .article-main-body td {
            border: 1px solid var(--line);
            padding: 10px 14px;
            text-align: left;
        }

        .article-main-body th {
            background: #F1ECFB;
            font-weight: 700;
            color: var(--ink-strong);
        }

        .article-main-body hr {
            border: 0;
            border-top: 1px solid var(--line);
            margin: 2em 0;
        }

        .article-not-found {
            text-align: center;
            padding: 60px 24px;
        }

        .article-not-found-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 72px;
            height: 72px;
            border-radius: 22px;
            background: #F1ECFB;
            color: var(--brand-main);
            font-size: 1.9rem;
            margin-bottom: 18px;
        }

        .article-not-found h1 {
            font-size: 1.6rem;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .article-not-found p {
            color: var(--ink-muted);
            margin-bottom: 26px;
        }

        /* ======= Article Footer Nav ======= */
        .article-bottom-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 20px 24px;
            margin-top: 30px;
            box-shadow: var(--shadow-soft);
        }

        .article-bottom-nav .btn {
            min-height: 44px;
            border-radius: 10px;
        }

        .article-bottom-text {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--ink-muted);
            font-size: .9rem;
        }

        .article-bottom-text i {
            font-size: 1.4rem;
            color: var(--brand-main);
        }

        /* ======= CTA band ======= */
        .cta-band {
            position: relative;
            border-radius: var(--radius-l);
            overflow: hidden;
            background: var(--brand-deep);
            color: #fff;
            padding: 46px 52px;
            margin: 50px 0 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            box-shadow: 0 18px 48px rgba(60, 26, 150, .2);
        }

        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(106, 61, 246, .24), rgba(255, 255, 255, .02));
            pointer-events: none;
        }

        .cta-copy {
            position: relative;
            z-index: 1;
            max-width: 620px;
        }

        .cta-copy h2 {
            color: #fff;
            font-size: clamp(1.3rem, 2vw, 1.8rem);
            font-weight: 800;
            margin: 0 0 8px;
        }

        .cta-copy p {
            margin: 0;
            color: rgba(255, 255, 255, .78);
            font-size: .95rem;
        }

        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ======= Related ======= */
        .related-section {
            background: transparent;
        }

        .section-title {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin: 0 0 28px;
        }

        .section-title-line {
            width: 42px;
            height: 4px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--accent-sun), var(--brand-main));
            margin-top: 16px;
            flex: 0 0 auto;
        }

        .section-title .v2 {
            font-size: clamp(1.3rem, 2.4vw, 1.8rem);
            font-weight: 800;
            color: var(--ink-strong);
            margin: 0;
        }

        .section-title p {
            color: var(--ink-muted);
            margin: 4px 0 0;
            font-size: .95rem;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-m);
            overflow: hidden;
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(106, 61, 246, .22);
            box-shadow: var(--shadow-hover);
        }

        .related-cover {
            display: block;
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: transform .35s ease;
        }

        .related-cover-wrap {
            display: block;
            overflow: hidden;
        }

        .related-card:hover .related-cover {
            transform: scale(1.04);
        }

        .related-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-body h3 {
            font-size: 1.04rem;
            font-weight: 700;
            margin: 10px 0 10px;
            line-height: 1.55;
        }

        .related-body h3 a {
            color: var(--ink-strong);
        }

        .related-body h3 a:hover {
            color: var(--brand-main);
        }

        .related-body p {
            color: var(--ink-muted);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .88rem;
            font-weight: 600;
            color: var(--brand-main);
        }

        /* ======= Footer ======= */
        .site-footer {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, .7);
            padding: 58px 0 0;
        }

        .footer-main {
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand .logo-badge {
            background: #fff;
            color: var(--brand-main);
        }

        .footer-about {
            font-size: .9rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, .64);
            max-width: 360px;
            margin-bottom: 0;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin: 4px 0 18px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 11px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .68);
            font-size: .9rem;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-note {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 14px;
            padding: 16px 18px;
            font-size: .86rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, .64);
        }

        .footer-note i {
            color: var(--accent-sun);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: .84rem;
            color: rgba(255, 255, 255, .48);
        }

        /* ======= Responsive ======= */
        @media (max-width: 991.98px) {
            .header-search {
                display: none;
            }

            .header-main {
                gap: 14px;
            }

            .article-content-card {
                padding: 40px 34px;
            }

            .article-head-card {
                padding: 38px 34px;
            }
        }

        @media (max-width: 767.98px) {
            .brand-logo .logo-text {
                font-size: 1.2rem;
            }

            .logo-badge {
                width: 36px;
                height: 36px;
                border-radius: 11px;
                font-size: 1.05rem;
            }

            .header-actions {
                gap: 6px;
            }

            .icon-btn span {
                display: none;
            }

            .header-actions .btn {
                padding: 0 15px;
                height: 40px;
            }

            .header-actions .btn i {
                margin-right: 0 !important;
            }

            .article-title {
                font-size: clamp(1.4rem, 5vw, 1.9rem);
            }

            .article-head-card {
                border-radius: 18px;
                padding: 28px 22px;
            }

            .article-content-card {
                border-radius: 18px;
                padding: 26px 20px;
            }

            .cta-band {
                padding: 34px 24px;
                border-radius: 18px;
            }

            .cta-actions {
                width: 100%;
            }

            .breadcrumb-list .active {
                max-width: 180px;
            }

            .article-bottom-nav {
                flex-direction: column;
                align-items: stretch;
            }

            .article-bottom-text {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .btn {
                height: 42px;
                font-size: .9rem;
            }

            .header-main {
                padding-top: 10px;
                padding-bottom: 10px;
            }

            .brand-logo .logo-text {
                font-size: 1.1rem;
            }

            .channel-item {
                padding: 0 14px;
                height: 36px;
                font-size: .87rem;
            }

            .channel-item i {
                display: none;
            }

            .article-page {
                padding-bottom: 50px;
            }

            .article-content-card {
                padding: 22px 16px;
            }

            .article-main-body {
                font-size: 15px;
            }

            .article-main-body h2 {
                font-size: 1.25rem;
            }

            .cta-band {
                padding: 28px 18px;
            }

            .cta-copy h2 {
                font-size: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
  --bg-page: #F6F3FA;
  --surface-card: #FFFFFF;
  --ink-strong: #221A33;
  --ink-muted: #655C75;
  --line: #E3DDF0;
  --brand-main: #6A3DF6;
  --brand-deep: #3C1A96;
  --accent-sun: #FFB72C;
  --accent-mint: #2FD6A8;
  --danger: #F4614A;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 24px;
  --shadow-card: 0 8px 24px rgba(77, 46, 142, 0.08);
  --shadow-hover: 0 12px 32px rgba(80, 48, 150, 0.14);
  --bs-primary: var(--brand-main);
  --bs-link-color: var(--brand-main);
  --bs-link-hover-color: var(--brand-deep);
  --bs-border-radius: 0.5rem;
  --bs-body-font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--bs-body-font-family);
  background: var(--bg-page);
  color: var(--ink-strong);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .25s ease, background-color .25s ease, border-color .25s ease; }
a:hover { color: var(--brand-main); }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
.container { max-width: 1200px; }

.section { padding: 80px 0; }
.section-tight { padding: 48px 0; }
.section-head { margin-bottom: 48px; }
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brand-main);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: 10px;
}
.section-kicker::before { content: ""; width: 26px; height: 3px; border-radius: 99px; background: var(--brand-main); display: inline-block; }
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--ink-strong);
  letter-spacing: -0.02em;
  margin: 0;
}
.section-desc { color: var(--ink-muted); max-width: 760px; margin: 14px 0 0; font-size: 15px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(246, 243, 250, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease, background-color .3s ease;
}
.site-header.is-scrolled { background: rgba(246, 243, 250, 0.97); box-shadow: 0 6px 24px rgba(77, 46, 142, 0.06); }
.header-main { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 16px; padding-bottom: 14px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; min-width: 180px; flex-shrink: 0; }
.logo-badge {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-main), var(--brand-deep));
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 6px 16px rgba(106, 61, 246, 0.25);
}
.logo-text { color: var(--ink-strong); font-size: 20px; font-weight: 800; line-height: 1.2; white-space: nowrap; }
.logo-text span { color: var(--brand-main); }
.header-search { flex: 0 1 360px; min-width: 220px; }
.search-form { display: flex; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 99px; height: 44px; padding-left: 18px; overflow: hidden; transition: border-color .25s, box-shadow .25s; }
.search-form:focus-within { border-color: rgba(106, 61, 246, 0.4); box-shadow: 0 0 0 4px rgba(106, 61, 246, 0.1); }
.search-form input { flex: 1; border: 0; background: transparent; outline: none; font-size: 14px; color: var(--ink-strong); }
.search-form button { width: 48px; height: 44px; border: 0; background: transparent; color: var(--brand-main); cursor: pointer; transition: color .2s, background-color .2s; }
.search-form button:hover { background: rgba(106, 61, 246, 0.08); }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.icon-btn { display: inline-flex; align-items: center; gap: 6px; height: 42px; padding: 0 14px; border-radius: 10px; background: transparent; border: 1px solid var(--line); color: var(--ink-muted); font-size: 14px; transition: all .25s ease; }
.icon-btn:hover { border-color: var(--brand-main); color: var(--brand-main); transform: translateY(-1px); }
.icon-btn i { color: var(--accent-sun); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border-radius: 10px; font-weight: 600; transition: all .22s ease; }
.btn-primary { background: var(--brand-main); border: 1px solid var(--brand-main); color: #fff; height: 44px; padding: 0 20px; }
.btn-primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; transform: translateY(-1px); }
.btn-outline { background: #fff; border: 1px solid rgba(106, 61, 246, 0.55); color: var(--brand-main); height: 44px; padding: 0 20px; }
.btn-outline:hover { background: var(--brand-main); border-color: var(--brand-main); color: #fff; transform: translateY(-1px); }
.btn-white { background: #fff; color: var(--brand-main); border: 1px solid #fff; height: 44px; padding: 0 22px; }
.btn-white:hover { background: rgba(255, 255, 255, 0.88); color: var(--brand-deep); transform: translateY(-1px); }
.btn-outline-light { background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.85); color: #fff; height: 44px; padding: 0 22px; }
.btn-outline-light:hover { background: #fff; color: var(--brand-deep); border-color: #fff; transform: translateY(-1px); }
.btn.btn-lg { height: 52px; padding: 0 28px; border-radius: 12px; font-size: 16px; }
.channel-bar { border-top: 1px solid rgba(227, 221, 240, 0.7); background: rgba(255, 255, 255, 0.5); }
.channel-bar-inner { display: flex; flex-wrap: nowrap; gap: 12px; overflow-x: auto; padding: 12px 0; scrollbar-width: none; }
.channel-bar-inner::-webkit-scrollbar { display: none; }
.channel-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: all .22s ease;
}
.channel-item:hover { color: var(--brand-main); border-color: rgba(106, 61, 246, 0.35); background: #fff; }
.channel-item.active { background: var(--brand-main); border-color: var(--brand-main); color: #fff; box-shadow: 0 8px 20px rgba(106, 61, 246, 0.24); }
.channel-item.active:hover { color: #fff; background: var(--brand-deep); }

.category-hero {
  position: relative;
  min-height: 530px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(105deg, rgba(30, 15, 70, 0.92) 0%, rgba(60, 26, 150, 0.75) 48%, rgba(60, 26, 150, 0.30) 82%, rgba(60, 26, 150, 0.15) 100%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  padding: 80px 0 70px;
  color: #fff;
  overflow: hidden;
}
.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(22,10,54,0.15) 100%);
  pointer-events: none;
}
.category-hero-content { position: relative; z-index: 2; max-width: 720px; padding: 24px 0; }
.hero-kicker { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #E8DFFF; letter-spacing: 0.06em; margin-bottom: 20px; }
.hero-kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-mint); display: inline-block; box-shadow: 0 0 0 5px rgba(47, 214, 168, 0.15); }
.hero-title {
  font-size: clamp(1.9rem, 5vw, 3.3rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #fff;
  margin: 0 0 18px;
}
.hero-title .text-outline { color: var(--accent-sun); }
.hero-lead { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.82); max-width: 620px; margin-bottom: 26px; }
.hero-summary { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 18px; }
.hero-summary-item { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.8); background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16); border-radius: 999px; padding: 6px 13px; }
.hero-summary-item i { color: var(--accent-mint); }
.hero-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }

.intro-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); box-shadow: var(--shadow-card); padding: 34px; margin-top: -58px; position: relative; z-index: 3; }
.intro-panel-title { font-size: 20px; font-weight: 800; margin-bottom: 10px; }
.intro-panel p { color: var(--ink-muted); margin-bottom: 20px; }
.feature-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 22px; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; line-height: 1.7; color: var(--ink-strong); }
.feature-list li i { width: 22px; height: 22px; flex: 0 0 22px; display: inline-flex; align-items: center; justify-content: center; color: var(--brand-main); background: #EFE9FF; border-radius: 6px; margin-top: 3px; font-size: 12px; }

.value-group { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: 28px; height: 100%; box-shadow: var(--shadow-card); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.value-group:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(106, 61, 246, 0.25); }
.value-group .value-icon { width: 52px; height: 52px; display: inline-flex; align-items: center; justify-content: center; background: #EFE9FF; color: var(--brand-main); font-size: 22px; border-radius: 14px; margin-bottom: 18px; }
.value-group h3 { color: var(--ink-strong); font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.value-group p { color: var(--ink-muted); font-size: 14px; line-height: 1.75; margin: 0; }

.collection-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; box-shadow: var(--shadow-card); height: 100%; display: flex; flex-direction: column; transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease; position: relative; }
.collection-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(106,61,246,.25); }
.collection-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.collection-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.collection-card:hover .collection-cover img { transform: scale(1.05); }
.card-mask { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(20, 10, 40, 0.06), rgba(20, 10, 40, 0.58)); z-index: 1; }
.badge-card { position: absolute; top: 14px; left: 14px; z-index: 2; border-radius: 6px; padding: 4px 10px; font-size: 12px; color: #fff; background: rgba(34, 26, 51, 0.72); border: 1px solid rgba(255,255,255,0.24); letter-spacing: .03em; }
.collection-count { position: absolute; right: 14px; bottom: 12px; z-index: 2; font-size: 12px; color: #fff; border-radius: 999px; background: rgba(255, 183, 44, 0.95); padding: 3px 10px; font-weight: 700; }
.collection-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; }
.collection-body h3 { margin: 0; font-size: 18px; font-weight: 800; color: var(--ink-strong); line-height: 1.5; }
.collection-body p { color: var(--ink-muted); font-size: 14px; line-height: 1.7; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta-row { display: flex; justify-content: space-between; margin-top: auto; padding-top: 8px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--ink-muted); }
.card-meta-row a { color: var(--brand-main); font-weight: 600; }
.card-meta-row a:hover { color: var(--brand-deep); }
.status-mint { color: var(--accent-mint); }

.process-panel { border-radius: var(--radius-l); background: #fff; border: 1px solid var(--line); overflow: hidden; }
.process-step { list-style: none; padding: 0; margin: 0; }
.process-step li { display: flex; gap: 18px; padding: 20px 26px; border-bottom: 1px solid var(--line); align-items: flex-start; transition: background-color .2s ease; }
.process-step li:last-child { border-bottom: 0; }
.process-step li:hover { background: rgba(106, 61, 246, 0.04); }
.step-num { display: inline-flex; width: 32px; height: 32px; align-items: center; justify-content: center; border-radius: 10px; background: var(--brand-main); color: #fff; font-weight: 800; font-size: 14px; flex: 0 0 32px; margin-top: 3px; }
.process-text h4 { font-size: 17px; font-weight: 800; color: var(--ink-strong); margin-bottom: 4px; }
.process-text p { font-size: 14px; color: var(--ink-muted); margin: 0; }

.dark-cta { background: linear-gradient(120deg, var(--brand-deep) 0%, var(--brand-main) 100%); border-radius: var(--radius-l); padding: 46px 48px; box-shadow: 0 18px 50px rgba(60, 26, 150, 0.24); }
.dark-cta h2 { color: #fff; font-weight: 800; margin: 0 0 10px; font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
.dark-cta p { color: rgba(255,255,255,0.82); margin: 0; max-width: 620px; font-size: 15px; line-height: 1.8; }
.cta-actions { display: flex; gap: 10px; }
.cta-actions .icon-action { width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center; color: #fff; background: rgba(255, 255, 255, 0.12); border-radius: 99px; transition: all .25s ease; }
.cta-actions .icon-action:hover { background: var(--accent-sun); color: var(--brand-deep); transform: translateY(-2px); }

.channel-more { border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); padding: 30px 0; }
.channel-more-title { font-size: 15px; font-weight: 700; color: var(--ink-muted); margin-bottom: 12px; letter-spacing: .06em; }
.channel-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.channel-tags a { display: inline-flex; gap: 7px; align-items: center; background: #fff; border: 1px solid var(--line); color: var(--ink-strong); height: 40px; padding: 0 16px; border-radius: 999px; font-size: 14px; font-weight: 600; transition: all .22s ease; }
.channel-tags a:hover { border-color: var(--brand-main); color: var(--brand-main); box-shadow: 0 6px 16px rgba(106,61,246,.1); }
.channel-tags a.active { background: var(--brand-main); border-color: var(--brand-main); color: #fff; }

.faq-block { max-width: 920px; margin: 0 auto; }
.accordion-item { background:#fff; border:1px solid var(--line) !important; border-radius: var(--radius-m) !important; margin-bottom: 16px; overflow: hidden; box-shadow: 0 4px 14px rgba(77,46,142,.04); }
.accordion-button { background: #fff; color: var(--ink-strong); font-weight: 800; font-size: 16px; padding: 18px 22px; box-shadow: none !important; }
.accordion-button:focus { outline: none; }
.accordion-button:not(.collapsed) { color: var(--brand-deep); background: #F9F7FE; }
.accordion-button::after { font-family: "Font Awesome 6 Free"; font-weight: 900; background-image: none; width: 16px; height: 16px; content: "\f078"; display:inline-flex; align-items:center; justify-content:center; transition: transform .25s ease; color: var(--brand-main); font-size: 13px; }
.accordion-button:not(.collapsed)::after { transform: rotate(180deg); }
.accordion-body { color: var(--ink-muted); font-size: 15px; line-height: 1.85; padding: 8px 24px 24px; }

.empty-state { background: #EFE9FF; border-radius: var(--radius-m); padding: 34px; text-align: center; border: 1px solid rgba(106,61,246,.08); }
.empty-state i { color: var(--brand-main); font-size: 28px; margin-bottom: 12px; }

.site-footer { background: var(--brand-deep); color: rgba(255,255,255,0.82); margin-top: 80px; }
.footer-main { padding: 70px 0 46px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 16px; }
.footer-brand .logo-badge { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); box-shadow: none; color:#fff; }
.footer-about { color: rgba(255,255,255,0.65); max-width: 380px; font-size: 14px; line-height: 1.8; margin-bottom: 0; }
.footer-title { color:#fff; font-weight: 700; font-size: 16px; margin-bottom: 18px; position: relative; padding-bottom: 8px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 3px; background: var(--accent-sun); border-radius: 99px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.66); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-note { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-s); padding: 14px 16px; font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.72); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.13); padding: 20px 0; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; color: rgba(255,255,255,0.55); font-size: 13px; }
.footer-bottom-inner a { color: rgba(255,255,255,0.75); }

.page-breadcrumb { padding-top: 22px; font-size: 13px; color: var(--ink-muted); }
.page-breadcrumb a { color: var(--ink-muted); }
.page-breadcrumb a:hover { color: var(--brand-main); }
.page-breadcrumb .sep { margin: 0 10px; color: #C4BACF; }
.page-breadcrumb .current { color: var(--ink-strong); font-weight: 600; }

.btn-collect { outline: none; }
.btn-collect.is-active { background: var(--accent-sun); border-color: var(--accent-sun); color: var(--brand-deep); }
@media (min-width: 992px) {
  .reverse-lg { order: 2; }
}
@media (max-width: 991px) {
  .section { padding: 64px 0; }
  .header-main { flex-wrap: wrap; }
  .header-search { order: 3; flex: 1 0 100%; min-width: 100%; margin-top: 12px; }
  .channel-bar { position: static; }
  .category-hero { min-height: 470px; }
  .intro-panel { padding: 24px; }
  .feature-list { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .section { padding: 46px 0; }
  .header-main { padding-top: 14px; padding-bottom: 12px; }
  .brand-logo { min-width: 0; }
  .logo-text { font-size: 17px; }
  .header-search { order: 3; flex: 1 0 100%; min-width: 100%; margin-top: 12px; }
  .icon-btn span { display: none; }
  .icon-btn { width: 42px; padding: 0; justify-content: center; border-radius: 10px; }
  .header-actions .btn { width: 42px; height: 42px; padding: 0; justify-content: center; }
  .header-actions .btn span { display: none; }
  .feature-list { grid-template-columns: 1fr; gap: 12px 0; }
  .category-hero { min-height: 0; padding: 70px 0 110px; background-position: 72% center; }
  .hero-title { font-size: clamp(1.7rem, 8vw, 2.2rem); }
  .hero-summary { gap: 8px; }
  .intro-panel { padding: 24px; }
  .value-group { padding: 22px; }
  .dark-cta { padding: 34px 26px; }
  .footer-main { padding: 46px 0 30px; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
  .header-main { flex-wrap: nowrap; }
  .header-search { display: none; }
  .header-main { gap: 6px; }
  .logo-text { font-size: 16px; }
  .logo-badge { width: 36px; height: 36px; font-size: 17px; }
  .btn.btn-lg { width: 100%; }
  .hero-actions { flex-direction: column; width: 100%; }
  .dark-cta .d-flex { flex-direction: column; }
  .channel-tags a, .channel-item { min-height: 42px; }
  .collection-body h3 { font-size: 17px; }
  .section-title { font-size: 1.55rem; }
}

/* roulang page: category2 */
:root {
            --bg-page: #F6F3FA;
            --surface-card: #FFFFFF;
            --ink-strong: #221A33;
            --ink-muted: #655C75;
            --line: #E3DDF0;
            --brand-main: #6A3DF6;
            --brand-deep: #3C1A96;
            --accent-sun: #FFB72C;
            --accent-mint: #2FD6A8;
            --danger: #F4614A;
            --radius-s: 8px;
            --radius-m: 14px;
            --radius-l: 24px;
            --shadow-soft: 0 8px 24px rgba(77, 46, 142, 0.08);
            --shadow-hover: 0 12px 32px rgba(80, 48, 150, 0.14);
            --bs-gutter-x: 20px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            background-color: var(--bg-page);
            color: var(--ink-strong);
            -webkit-font-smoothing: antialiased;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 16px;
        }

        input:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(255, 183, 44, 0.7);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            --bs-gutter-x: 20px;
            max-width: 1200px;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-pad-sm {
            padding: 40px 0;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(246, 243, 250, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }

        .header-main {
            display: flex;
            align-items: center;
            gap: 18px;
            min-height: 74px;
            padding: 12px 0;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            min-width: max-content;
            font-size: 20px;
            font-weight: 800;
            color: var(--ink-strong);
            letter-spacing: 0.5px;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-main), var(--brand-deep));
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            box-shadow: var(--shadow-soft);
        }

        .logo-text span {
            color: var(--brand-main);
        }

        .header-search {
            flex: 0 1 360px;
            margin-left: auto;
        }

        .search-form {
            position: relative;
            display: flex;
        }

        .search-form input {
            flex: 1;
            min-width: 0;
            height: 42px;
            border: 1px solid var(--line);
            border-radius: 999px 0 0 999px;
            background: var(--surface-card);
            padding: 0 16px 0 20px;
            color: var(--ink-strong);
            font-size: 14px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .search-form input::placeholder {
            color: #9A91B0;
        }

        .search-form input:focus {
            outline: none;
            border-color: var(--brand-main);
            box-shadow: 0 0 0 3px rgba(106, 61, 246, 0.16);
        }

        .search-form button {
            width: 48px;
            height: 42px;
            border: 1px solid var(--brand-main);
            border-radius: 0 999px 999px 0;
            background: var(--brand-main);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease, transform 0.2s ease;
        }

        .search-form button:hover {
            background: var(--brand-deep);
            transform: translateY(-1px);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 6px;
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 40px;
            border-radius: 999px;
            padding: 0 15px;
            background: transparent;
            border: 1px solid var(--line);
            color: var(--ink-muted);
            font-size: 14px;
            transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
        }

        .icon-btn:hover {
            background: #fff;
            border-color: var(--brand-main);
            color: var(--brand-main);
        }

        .btn-primary {
            --bs-btn-bg: var(--brand-main);
            --bs-btn-border-color: var(--brand-main);
            --bs-btn-hover-bg: var(--brand-deep);
            --bs-btn-hover-border-color: var(--brand-deep);
            --bs-btn-active-bg: var(--brand-deep);
            --bs-btn-active-border-color: var(--brand-deep);
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 7px;
            height: 42px;
            padding: 0 20px;
            border-radius: 10px;
            border: 1px solid transparent;
            font-weight: 600;
            white-space: nowrap;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(106, 61, 246, 0.2);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .channel-bar {
            background: rgba(246, 243, 250, 0.78);
            border-top: 1px solid rgba(227, 221, 240, 0.75);
        }

        .channel-bar-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            white-space: nowrap;
        }

        .channel-bar-inner::-webkit-scrollbar {
            display: none;
        }

        .channel-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            height: 38px;
            border-radius: 999px;
            padding: 0 17px;
            background: transparent;
            border: 1px solid var(--line);
            color: var(--ink-muted);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all 0.25s ease;
        }

        .channel-item i {
            font-size: 14px;
        }

        .channel-item:hover {
            background: #fff;
            border-color: #C8BDE0;
            color: var(--ink-strong);
        }

        .channel-item.active {
            background: var(--brand-main);
            border-color: var(--brand-main);
            color: #fff;
            box-shadow: 0 6px 14px rgba(106, 61, 246, 0.28);
        }

        /* 页面封面带头图 */
        .category-hero {
            position: relative;
            isolation: isolate;
            padding: 88px 0 72px;
            margin-bottom: 16px;
            color: #fff;
            overflow: hidden;
            background-size: cover;
            background-position: center 35%;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(90deg, rgba(26, 14, 60, 0.9) 0%, rgba(60, 26, 150, 0.66) 55%, rgba(106, 61, 246, 0.45) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-breadcrumbs {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 26px;
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .hero-breadcrumbs a {
            color: rgba(255, 255, 255, 0.9);
        }

        .hero-breadcrumbs a:hover {
            color: var(--accent-sun);
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 15px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.19);
            color: rgba(255, 255, 255, 0.95);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 18px;
            backdrop-filter: blur(4px);
        }

        .category-hero h1 {
            margin: 0 0 16px;
            font-size: clamp(2.4rem, 5vw, 3.7rem);
            line-height: 1.2;
            color: #fff;
            font-weight: 800;
            letter-spacing: 1px;
        }

        .hero-lead {
            max-width: 760px;
            margin-bottom: 0;
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.86);
        }

        /* 栏目说明 */
        .promise-section {
            padding: 70px 0 40px;
        }

        .section-heading {
            margin-bottom: 34px;
        }

        .section-heading .eyebrow {
            display: inline-block;
            color: var(--brand-main);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .section-heading h2,
        .section-heading h3 {
            margin: 0 0 8px;
            color: var(--ink-strong);
            font-weight: 700;
            letter-spacing: 0.2px;
        }

        .section-heading h2 {
            font-size: clamp(1.7rem, 3vw, 2.5rem);
            line-height: 1.3;
        }

        .section-heading p {
            max-width: 820px;
            color: var(--ink-muted);
            font-size: 15px;
            margin: 0;
        }

        .promise-card {
            display: flex;
            height: 100%;
            flex-direction: column;
            padding: 26px 22px;
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            box-shadow: var(--shadow-soft);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        .promise-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(106, 61, 246, 0.26);
        }

        .promise-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: #F0EAFE;
            color: var(--brand-main);
            font-size: 22px;
            margin-bottom: 18px;
        }

        .promise-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .promise-card p {
            color: var(--ink-muted);
            font-size: 14px;
            margin: 0;
            line-height: 1.75;
        }

        /* 专题合集卡片 */
        .collection-section {
            padding: 44px 0 70px;
        }

        .collection-grid-col {
            margin-bottom: 20px;
        }

        .topic-card {
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-soft);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        .topic-card:hover {
            border-color: rgba(106, 61, 246, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .topic-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #EDE7FA;
        }

        .topic-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .topic-card:hover .topic-media img {
            transform: scale(1.04);
        }

        .topic-media .hot-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            height: 26px;
            padding: 0 11px;
            border-radius: 999px;
            background: #FFE3A3;
            color: #755217;
            font-size: 12px;
            font-weight: 700;
        }

        .topic-body {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            height: 24px;
            padding: 0 10px;
            border-radius: 999px;
            background: #EFE9FF;
            color: var(--brand-deep);
            font-size: 12px;
            font-weight: 600;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.35;
            margin: 0 0 8px;
        }

        .topic-body p {
            color: var(--ink-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .topic-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            border-top: 1px solid #EFEAF7;
            padding-top: 14px;
        }

        .topic-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #968AAE;
            font-size: 13px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--brand-main);
            font-size: 14px;
            font-weight: 600;
        }

        .text-link:hover {
            color: var(--brand-deep);
        }

        /* 阅读流程 */
        .reading-path {
            background: #FFFFFF;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .path-card {
            position: relative;
            height: 100%;
            background: var(--bg-page);
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            padding: 26px 22px 20px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .path-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .path-num {
            display: block;
            font-size: 14px;
            font-weight: 800;
            color: #B096F4;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .path-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
        }

        .path-card p {
            font-size: 14px;
            color: var(--ink-muted);
            margin: 0;
            line-height: 1.75;
        }

        /* 横向频道切换 */
        .switch-section {
            padding: 70px 0 40px;
        }

        .switch-box {
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            padding: 34px 32px;
            box-shadow: var(--shadow-soft);
        }

        .switch-box h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 4px;
        }

        .switch-box .switch-caption {
            color: var(--ink-muted);
            font-size: 15px;
            margin-bottom: 22px;
        }

        .switch-pill-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .switch-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 20px;
            border-radius: 999px;
            border: 1px solid var(--line);
            background: #FAF8FF;
            color: var(--ink-strong);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.22s ease;
        }

        .switch-pill:hover {
            border-color: var(--brand-main);
            color: var(--brand-main);
            transform: translateY(-2px);
        }

        .switch-pill.pill-current {
            background: var(--brand-main);
            border-color: var(--brand-main);
            color: #fff;
            box-shadow: 0 8px 18px rgba(106, 61, 246, 0.2);
        }

        .switch-pill i {
            width: 18px;
            text-align: center;
        }

        /* FAQ */
        .faq-section {
            padding: 60px 0 70px;
        }

        .faq-inner {
            max-width: 920px;
            margin: 0 auto;
        }

        .faq-head {
            text-align: center;
            margin-bottom: 34px;
        }

        .faq-head .eyebrow {
            color: var(--brand-main);
            font-weight: 700;
            font-size: 14px;
        }

        .faq-head h2 {
            margin: 6px 0 0;
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
        }

        .accordion-item {
            background: var(--surface-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-m) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(77, 46, 142, 0.05);
        }

        .accordion-button {
            background: var(--surface-card);
            color: var(--ink-strong);
            font-size: 16px;
            font-weight: 700;
            padding: 20px 22px;
            border: 0;
            box-shadow: none !important;
            gap: 12px;
        }

        .accordion-button:not(.collapsed) {
            background: #FAF7FF;
            color: var(--ink-strong);
        }

        .accordion-button::after {
            filter: hue-rotate(250deg) saturate(1.4);
            background-size: 18px;
            width: 18px;
            height: 18px;
            transition: transform 0.3s ease;
        }

        .faq-num {
            font-size: 14px;
            font-weight: 800;
            color: #B096F4;
            letter-spacing: 0.5px;
        }

        .accordion-body {
            padding: 0 22px 22px;
            color: var(--ink-muted);
        }

        /* 收藏 CTA */
        .collect-cta {
            padding: 34px 0 80px;
        }

        .cta-deepbox {
            background: var(--brand-deep);
            border-radius: var(--radius-l);
            padding: 46px 46px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-deepbox::after {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(106, 61, 246, 0.38);
            right: -80px;
            top: -120px;
        }

        .cta-deepbox .row {
            position: relative;
            z-index: 2;
            align-items: center;
        }

        .cta-deepbox h2 {
            font-size: clamp(1.7rem, 3vw, 2.5rem);
            font-weight: 800;
            margin: 0 0 8px;
            color: #fff;
        }

        .cta-deepbox p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 15px;
            margin: 0;
            max-width: 680px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 13px;
            justify-content: flex-end;
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            min-height: 44px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.66);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 10px;
            padding: 0 18px;
            transition: all 0.2s ease;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-white-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            min-height: 44px;
            background: #fff;
            border: 1px solid #fff;
            color: var(--brand-deep);
            font-weight: 700;
            border-radius: 10px;
            padding: 0 20px;
            transition: all 0.2s ease;
        }

        .btn-white-solid:hover {
            background: #f0e9ff;
            border-color: #f0e9ff;
            color: var(--brand-deep);
            transform: translateY(-2px);
        }

        /* 页脚 */
        .site-footer {
            background: var(--brand-deep);
            color: #fff;
            padding-top: 60px;
        }

        .footer-main {
            padding-bottom: 34px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .footer-brand .logo-badge {
            background: linear-gradient(135deg, #8560FF, #B48BFF);
        }

        .footer-about {
            color: rgba(255, 255, 255, 0.74);
            font-size: 14px;
            line-height: 1.85;
            margin: 0;
            max-width: 360px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.76);
            font-size: 14px;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--accent-sun);
        }

        .footer-note {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-m);
            padding: 14px 16px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.14);
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding: 18px 0;
            color: rgba(255, 255, 255, 0.62);
            font-size: 13px;
        }

        .footer-bottom-inner span:last-child {
            opacity: 0.8;
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .header-main {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-search {
                order: 3;
                flex-basis: 100%;
            }

            .header-actions {
                margin-left: auto;
            }

            .collection-section .col-lg-4 {
                flex: 0 0 auto;
                width: 50%;
            }
        }

        @media (max-width: 767.98px) {
            .section-pad {
                padding: 48px 0;
            }

            .promise-section {
                padding: 42px 0 28px;
            }

            .collection-section {
                padding: 30px 0 48px;
            }

            .switch-section {
                padding: 48px 0 28px;
            }

            .faq-section {
                padding: 46px 0 52px;
            }

            .category-hero {
                padding: 64px 0 50px;
            }

            .cta-deepbox {
                padding: 34px 24px;
                border-radius: 20px;
            }

            .cta-actions {
                justify-content: flex-start;
                margin-top: 16px;
            }

            .switch-box {
                padding: 26px 20px;
            }

            .switch-pill-group {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
            }

            .switch-pill {
                flex-shrink: 0;
            }

            .collection-section .col-lg-4 {
                width: 100%;
            }

            .footer-main .row {
                row-gap: 28px;
            }
        }

        @media (min-width: 576px) and (max-width: 991px) {
            .collection-section .col-md-6 {
                flex: 0 0 auto;
                width: 50%;
            }
        }

        @media (max-width: 575.98px) {
            .brand-logo {
                font-size: 18px;
            }

            .header-main {
                gap: 8px;
            }

            .icon-btn span {
                display: none;
            }

            .icon-btn {
                width: 42px;
                padding: 0;
            }

            .header-actions .btn-primary span {
                display: none;
            }

            .header-actions .btn-primary {
                width: 42px;
                padding: 0;
            }

            .footer-bottom-inner {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
      --bg-page: #F6F3FA;
      --surface-card: #FFFFFF;
      --surface-soft: #EFE9FF;
      --ink-strong: #221A33;
      --ink-muted: #655C75;
      --line: #E3DDF0;
      --brand-main: #6A3DF6;
      --brand-deep: #3C1A96;
      --accent-sun: #FFB72C;
      --accent-mint: #2FD6A8;
      --danger: #F4614A;
      --radius-s: 8px;
      --radius-m: 14px;
      --radius-l: 24px;
      --shadow-soft: 0 8px 24px rgba(77, 46, 142, 0.08);
      --shadow-hover: 0 12px 32px rgba(80, 48, 150, 0.14);
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      margin: 0;
      background: var(--bg-page);
      color: var(--ink-strong);
      font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--brand-main);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
    }
    .container {
      max-width: 1200px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1050;
      background: rgba(246, 243, 250, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(227, 221, 240, 0.78);
      box-shadow: 0 6px 18px rgba(51, 26, 94, 0.04);
    }
    .header-main {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 13px;
      padding-bottom: 13px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--brand-main), var(--brand-deep));
      color: #fff;
      font-size: 19px;
      font-weight: 700;
      box-shadow: 0 8px 20px rgba(106, 61, 246, 0.25);
    }
    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--ink-strong);
      white-space: nowrap;
      line-height: 1.2;
    }
    .logo-text span {
      color: var(--brand-main);
    }
    .header-search {
      flex: 1 1 380px;
      max-width: 520px;
      margin: 0 12px;
    }
    .search-form {
      display: flex;
      align-items: center;
      background: var(--surface-card);
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 4px 5px 4px 18px;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .search-form:focus-within {
      border-color: rgba(106, 61, 246, 0.4);
      box-shadow: 0 0 0 4px rgba(106, 61, 246, 0.12);
    }
    .search-form input {
      border: none;
      outline: none;
      background: transparent;
      flex: 1;
      font-size: 14px;
      color: var(--ink-strong);
    }
    .search-form input::placeholder {
      color: #9A90AF;
    }
    .search-form button {
      border: none;
      width: 38px;
      height: 38px;
      border-radius: 999px;
      background: var(--brand-main);
      color: #fff;
      font-size: 14px;
      transition: background 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .search-form button:hover {
      background: var(--brand-deep);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .icon-btn {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 40px;
      padding: 0 12px;
      border-radius: 999px;
      color: var(--ink-muted);
      background: transparent;
      border: 1px solid var(--line);
      font-size: 13px;
      transition: all 0.2s;
    }
    .icon-btn:hover {
      border-color: var(--brand-main);
      color: var(--brand-main);
      transform: translateY(-1px);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      border-radius: 10px;
      padding: 0 18px;
      font-size: 14px;
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .btn:focus-visible,
    .icon-btn:focus-visible,
    .channel-item:focus-visible,
    .text-link:focus-visible,
    .accordion-button:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(255, 183, 44, 0.55);
    }
    .btn-primary {
      background: var(--brand-main);
      color: #fff;
    }
    .btn-primary:hover {
      background: var(--brand-deep);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(60, 26, 150, 0.22);
    }
    .btn-outline {
      background: transparent;
      color: var(--brand-main);
      border: 1px solid rgba(106, 61, 246, 0.45);
    }
    .btn-outline:hover {
      background: rgba(106, 61, 246, 0.08);
      color: var(--brand-deep);
      border-color: var(--brand-main);
      transform: translateY(-1px);
    }
    .btn-white {
      background: #fff;
      color: var(--brand-deep);
      min-height: 44px;
      padding: 0 22px;
      font-weight: 600;
      box-shadow: 0 10px 26px rgba(26, 8, 80, 0.16);
    }
    .btn-white:hover {
      background: #f3edff;
      color: var(--brand-deep);
      transform: translateY(-1px);
    }
    .btn-ghost-light {
      background: transparent;
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.78);
      min-height: 44px;
      padding: 0 22px;
    }
    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border-color: #fff;
    }
    .channel-bar {
      border-top: 1px solid rgba(227, 221, 240, 0.5);
      background: rgba(255, 255, 255, 0.6);
    }
    .channel-bar-inner {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 0 12px 0;
      overflow-x: auto;
      flex-wrap: nowrap;
      scrollbar-width: none;
    }
    .channel-bar-inner::-webkit-scrollbar {
      display: none;
    }
    .channel-item {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 38px;
      padding: 0 16px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: transparent;
      color: var(--ink-muted);
      font-size: 14px;
      white-space: nowrap;
      transition: all 0.2s ease;
    }
    .channel-item i {
      font-size: 15px;
    }
    .channel-item:hover {
      color: var(--brand-main);
      border-color: var(--brand-main);
      background: rgba(106, 61, 246, 0.05);
    }
    .channel-item.active {
      background: var(--brand-main);
      border-color: var(--brand-main);
      color: #fff;
      font-weight: 600;
      box-shadow: 0 6px 18px rgba(106, 61, 246, 0.26);
    }
    .channel-item.active:hover {
      background: var(--brand-main);
      color: #fff;
    }
    .category-hero {
      position: relative;
      min-height: 480px;
      display: flex;
      align-items: center;
      margin: 0 0 60px 0;
      border-radius: 0 0 30px 30px;
      background-image:
        linear-gradient(100deg, rgba(31, 17, 63, 0.94) 0%, rgba(60, 26, 150, 0.72) 48%, rgba(106, 61, 246, 0.35) 100%),
        url("/assets/images/backpic/back-2.webp");
      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;
      color: #fff;
      overflow: hidden;
    }
    .category-hero::after {
      content: "";
      position: absolute;
      right: -120px;
      bottom: -140px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.15);
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 1;
      padding: 70px 0;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      letter-spacing: 0.08em;
      color: rgba(255, 255, 255, 0.82);
      font-size: 14px;
    }
    .hero-eyebrow i {
      color: var(--accent-sun);
    }
    .hero-title {
      font-size: clamp(2rem, 5vw, 3.5rem);
      line-height: 1.25;
      font-weight: 800;
      margin: 0 0 18px 0;
      letter-spacing: -0.5px;
      max-width: 780px;
    }
    .hero-title span {
      color: var(--accent-sun);
    }
    .hero-sub {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.86);
      max-width: 680px;
      margin-bottom: 28px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 28px;
    }
    .hero-note {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      color: rgba(255, 255, 255, 0.72);
      font-size: 13px;
    }
    .hero-note i {
      color: var(--accent-mint);
      margin-right: 4px;
    }
    .section-block {
      padding: 60px 0;
    }
    .section-block.alt-bg {
      background: rgba(225, 215, 240, 0.18);
      border-top: 1px solid rgba(255, 255, 255, 0.6);
      border-bottom: 1px solid rgba(255, 255, 255, 0.6);
    }
    .section-block.short {
      padding: 40px 0;
    }
    .section-head {
      margin-bottom: 36px;
    }
    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--surface-soft);
      border: 1px solid rgba(106, 61, 246, 0.2);
      color: var(--brand-main);
      border-radius: 999px;
      height: 26px;
      padding: 0 12px;
      font-size: 12px;
      margin-bottom: 14px;
      font-weight: 600;
    }
    .section-title {
      font-size: clamp(1.7rem, 3.4vw, 2.4rem);
      line-height: 1.3;
      font-weight: 750;
      margin: 0 0 10px 0;
      position: relative;
      display: inline-block;
    }
    .section-title::before {
      content: "";
      display: inline-block;
      width: 10px;
      height: 10px;
      background: var(--accent-sun);
      border-radius: 4px;
      margin-right: 10px;
      transform: rotate(12deg);
    }
    .section-lead {
      color: var(--ink-muted);
      max-width: 620px;
      font-size: 16px;
      margin: 0;
    }
    .intro-cards .intro-card {
      height: 100%;
    }
    .intro-card {
      background: var(--surface-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-l);
      box-shadow: var(--shadow-soft);
      padding: 30px 28px;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .intro-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .intro-icon {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      background: linear-gradient(135deg, #6A3DF6, #3C1A96);
      color: #fff;
      margin-bottom: 18px;
      box-shadow: 0 8px 18px rgba(60, 26, 150, 0.18);
    }
    .intro-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 8px 0;
    }
    .intro-card p {
      color: var(--ink-muted);
      font-size: 14px;
      margin: 0;
    }
    .topic-card {
      background: var(--surface-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-l);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    }
    .topic-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(106, 61, 246, 0.25);
    }
    .topic-thumb {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: var(--surface-soft);
    }
    .topic-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .topic-card:hover .topic-thumb img {
      transform: scale(1.04);
    }
    .topic-thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(22, 10, 50, 0) 50%, rgba(22, 10, 50, 0.2) 100%);
    }
    .topic-badges {
      position: absolute;
      left: 14px;
      top: 14px;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      height: 24px;
      border-radius: 999px;
      padding: 0 10px;
      font-size: 12px;
      font-weight: 600;
      background: #EFE9FF;
      color: #4b2bb0;
      line-height: 1;
    }
    .tag-light {
      background: rgba(255, 255, 255, 0.92);
      color: var(--brand-deep);
    }
    .tag-hot {
      background: #FFB72C;
      color: #3d2500;
    }
    .tag-new {
      background: #2FD6A8;
      color: #004d37;
    }
    .topic-body {
      padding: 20px 20px 18px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .topic-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 0 0 8px 0;
      line-height: 1.5;
    }
    .topic-body h3 a:hover {
      color: var(--brand-main);
    }
    .topic-body p {
      color: var(--ink-muted);
      font-size: 14px;
      line-height: 1.7;
      margin: 0 0 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .topic-meta {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--line);
      padding-top: 12px;
      color: var(--ink-muted);
      font-size: 12px;
    }
    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: var(--brand-main);
      font-size: 13px;
      font-weight: 600;
    }
    .text-link i {
      transition: transform 0.2s;
    }
    .text-link:hover i {
      transform: translateX(3px);
    }
    .steps-wrap {
      counter-reset: step-count;
    }
    .step-item {
      position: relative;
      background: var(--surface-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-l);
      padding: 28px 24px 24px;
      height: 100%;
      transition: all 0.2s;
      box-shadow: var(--shadow-soft);
    }
    .step-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .step-item p {
      color: var(--ink-muted);
      font-size: 14px;
      margin: 0;
    }
    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 16px;
      background: var(--surface-soft);
      color: var(--brand-main);
      font-weight: 800;
      font-size: 19px;
      margin-bottom: 18px;
    }
    .hot-panel {
      background: var(--surface-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-l);
      overflow: hidden;
      display: flex;
      flex-direction: row;
      box-shadow: var(--shadow-soft);
      height: 100%;
      transition: all 0.25s;
    }
    .hot-panel:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
      border-color: rgba(106, 61, 246, 0.25);
    }
    .hot-panel.thin {
      flex-direction: column;
    }
    .hot-panel-img {
      flex: 1 1 44%;
      min-height: 190px;
      overflow: hidden;
    }
    .hot-panel.thin .hot-panel-img {
      width: 100%;
      aspect-ratio: 16 / 10;
    }
    .hot-panel-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s;
    }
    .hot-panel:hover .hot-panel-img img {
      transform: scale(1.04);
    }
    .hot-panel-body {
      flex: 1 1 56%;
      padding: 22px 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .hot-panel.thin .hot-panel-body {
      padding: 18px;
    }
    .hot-panel-body h3 {
      font-size: 18px;
      font-weight: 750;
      margin: 10px 0 8px;
      line-height: 1.5;
    }
    .hot-panel-body p {
      color: var(--ink-muted);
      font-size: 14px;
      margin: 0 0 12px;
    }
    .hot-panel-body .text-link {
      color: var(--brand-main);
    }
    .hot-panel .tag {
      background: var(--surface-soft);
      color: var(--brand-deep);
      margin-right: 6px;
    }
    .channel-bridge {
      padding: 36px 0;
      background: linear-gradient(90deg, #1e1040, #3C1A96);
      border-radius: 0;
      color: #fff;
    }
    .bridge-inner h2 {
      color: #fff;
      font-size: 22px;
      font-weight: 700;
      margin: 0 0 18px;
    }
    .bridge-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .bridge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      border-radius: 999px;
      height: 42px;
      padding: 0 18px;
      font-size: 14px;
      transition: all 0.2s;
    }
    .bridge-tag:hover {
      background: #fff;
      color: var(--brand-deep);
      transform: translateY(-1px);
    }
    .bridge-tag.active {
      background: #fff;
      color: var(--brand-deep);
      font-weight: 700;
    }
    .collect-cta {
      background: var(--brand-deep);
      border-radius: 32px;
      margin: 24px 0;
      padding: 46px 38px;
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .collect-cta::after {
      content: "";
      position: absolute;
      right: -40px;
      top: -48px;
      width: 180px;
      height: 180px;
      background: rgba(255, 255, 255, 0.06);
      border-radius: 50%;
    }
    .collect-cta h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.2rem);
      font-weight: 700;
      margin: 0 0 10px;
    }
    .collect-cta p {
      color: rgba(255, 255, 255, 0.72);
      max-width: 600px;
      margin: 0;
    }
    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }
    .faq-wrap {
      max-width: 920px;
      margin: 0 auto;
    }
    .accordion {
      --bs-accordion-border-width: 0;
      --bs-accordion-bg: transparent;
    }
    .accordion-item {
      background: var(--surface-card);
      border: 1px solid var(--line);
      margin-bottom: 14px;
      border-radius: var(--radius-m) !important;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }
    .accordion-button {
      background: var(--surface-card);
      color: var(--ink-strong);
      font-weight: 600;
      font-size: 16px;
      padding: 20px 20px 20px 24px;
      border-radius: 14px !important;
      box-shadow: none !important;
      font-family: inherit;
    }
    .accordion-button:not(.collapsed) {
      background: #F3EFFF;
      color: var(--brand-deep);
    }
    .accordion-button::after {
      background-color: #EFE9FF;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background-size: 12px;
      background-position: center;
    }
    .accordion-item .faq-num {
      color: #a590d8;
      font-size: 13px;
      font-weight: 600;
      margin-right: 16px;
      letter-spacing: 0.05em;
    }
    .accordion-button:not(.collapsed) .faq-num {
      color: var(--brand-main);
    }
    .accordion-body {
      padding: 0 24px 20px 64px;
      color: var(--ink-muted);
      font-size: 14px;
    }
    .site-footer {
      background: var(--brand-deep);
      color: rgba(255, 255, 255, 0.78);
      margin-top: 60px;
    }
    .footer-main {
      padding-top: 52px;
      padding-bottom: 36px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-about {
      font-size: 14px;
      line-height: 1.85;
      margin: 0;
      color: rgba(255, 255, 255, 0.66);
    }
    .footer-title {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin: 4px 0 14px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, 0.68);
      font-size: 14px;
      transition: all 0.2s;
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 3px;
    }
    .footer-note {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 14px;
      padding: 14px 16px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.68);
      line-height: 1.7;
    }
    .footer-note i {
      color: var(--accent-sun);
    }
    .footer-note .fa-circle-info {
      color: var(--accent-mint);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 18px 0;
    }
    .footer-bottom-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      color: rgba(255, 255, 255, 0.56);
      font-size: 13px;
    }
    @media (max-width: 1199px) {
      .header-search {
        max-width: 300px;
      }
    }
    @media (max-width: 991px) {
      .header-main {
        flex-wrap: wrap;
        gap: 10px;
      }
      .header-search {
        order: 3;
        flex: 1 1 100%;
        max-width: none;
      }
      .header-actions .icon-btn span {
        display: none;
      }
      .icon-btn {
        width: 42px;
        padding: 0;
        justify-content: center;
      }
      .category-hero {
        min-height: 420px;
      }
      .section-block {
        padding: 50px 0;
      }
      .hot-panel {
        flex-direction: column;
      }
      .hot-panel-img {
        min-height: 180px;
      }
      .cta-actions {
        justify-content: flex-start;
        margin-top: 24px;
      }
      .hero-note {
        flex-direction: column;
        gap: 6px;
      }
    }
    @media (max-width: 767px) {
      .section-block {
        padding: 42px 0;
      }
      .section-head {
        margin-bottom: 28px;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .category-hero {
        border-radius: 0 0 22px 22px;
        min-height: 0;
      }
      .hero-inner {
        padding: 56px 0;
      }
      .hero-sub {
        font-size: 15px;
      }
      .hero-actions .btn {
        flex: 1 1 46%;
      }
      .intro-card {
        padding: 22px 20px;
      }
      .topic-body h3,
      .hot-panel-body h3 {
        font-size: 17px;
      }
      .step-item {
        padding: 22px 18px;
      }
      .accordion-body {
        padding-left: 20px;
        padding-right: 18px;
      }
      .footer-main {
        padding-top: 40px;
        padding-bottom: 24px;
      }
      .footer-bottom-inner {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      .logo-text {
        font-size: 18px;
      }
      .brand-logo .logo-text span {
        display: inline;
      }
      .header-actions .btn-primary {
        width: 44px;
        padding: 0;
        font-size: 0;
      }
      .header-actions .btn-primary i {
        margin: 0 !important;
        font-size: 16px;
      }
      .channel-item {
        height: 40px;
        padding: 0 14px;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-actions .btn {
        width: 100%;
        flex: none;
      }
      .collect-cta {
        border-radius: 22px;
        padding: 32px 20px;
      }
      .cta-actions .btn {
        width: 100%;
      }
      .topic-card,
      .hot-panel,
      .intro-card,
      .step-item {
        border-radius: 18px;
      }
    }

/* roulang page: category4 */
:root{
  --bg-page:#F6F3FA;
  --surface-card:#FFFFFF;
  --ink-strong:#221A33;
  --ink-muted:#655C75;
  --line:#E3DDF0;
  --brand-main:#6A3DF6;
  --brand-deep:#3C1A96;
  --accent-sun:#FFB72C;
  --accent-mint:#2FD6A8;
  --danger:#F4614A;
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:24px;
  --shadow-soft:0 8px 24px rgba(77,46,142,.08);
  --shadow-hover:0 12px 32px rgba(80,48,150,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:var(--bg-page);
  color:var(--ink-strong);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-main);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
.container{max-width:1200px;padding-left:20px;padding-right:20px;--bs-gutter-x:20px}
.section-spacing{padding:76px 0}
@media(max-width:767px){.section-spacing{padding:44px 0}}
h1,h2,h3,h4,h5,h6{color:var(--ink-strong);line-height:1.35;font-weight:700}
.section-head{max-width:760px;margin-bottom:36px}
.overline{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-main);font-weight:600;letter-spacing:.04em;margin-bottom:10px}
.overline i{color:var(--accent-sun)}
.section-head h2{font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:12px}
.section-head p{color:var(--ink-muted);font-size:16px;margin-bottom:0}
.section-head .head-rule{width:46px;height:4px;border-radius:99px;background:var(--brand-main);margin:14px 0 0}

/* ========== 按钮与徽章 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:9px 22px;border-radius:10px;font-weight:600;font-size:15px;
  border:1px solid transparent;transition:all .25s ease;line-height:1.2;
}
.btn:focus-visible,.btn-primary:focus-visible,.btn-outline:focus-visible,.icon-btn:focus-visible{
  outline:3px solid rgba(255,183,44,.55);outline-offset:2px;box-shadow:none;
}
.btn-primary{background:var(--brand-main);color:#fff;border-color:var(--brand-main)}
.btn-primary:hover,.btn-primary:active{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--brand-main);border-color:rgba(106,61,246,.45)}
.btn-outline:hover{background:rgba(106,61,246,.08);border-color:var(--brand-main);color:var(--brand-deep);transform:translateY(-1px)}
.btn-light-soft{background:#fff;color:var(--brand-deep);border-color:#fff}
.btn-light-soft:hover{background:rgba(255,255,255,.9);color:var(--brand-deep);transform:translateY(-1px)}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.58)}
.btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
@media(max-width:480px){.btn{min-height:42px;padding-left:16px;padding-right:16px}}

.badge-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  background:#EFE9FF;color:var(--brand-deep);border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;
}
.badge-new{background:#E4FAF2;color:#0B8C6A}
.badge-hot{background:#FFF4DE;color:#B16900}

/* ========== 导航 ========== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(246,243,250,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(227,221,240,.7);
}
.header-main{
  display:flex;align-items:center;gap:22px;padding-top:13px;padding-bottom:13px;
}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-badge{
  width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,var(--brand-main),var(--brand-deep));
  color:#fff;font-weight:800;font-size:20px;box-shadow:0 6px 16px rgba(106,61,246,.28);
}
.logo-text{font-size:20px;font-weight:800;color:var(--ink-strong);letter-spacing:.01em;white-space:nowrap}
.logo-text span{color:var(--brand-main)}
.header-search{flex:1;max-width:390px;margin-left:auto}
.search-form{display:flex;align-items:center;height:42px;background:#fff;border:1px solid var(--line);border-radius:999px;padding-left:16px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.search-form:focus-within{border-color:var(--brand-main);box-shadow:0 0 0 4px rgba(106,61,246,.1)}
.search-form input{flex:1;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink-strong)}
.search-form button{width:48px;border:0;background:var(--brand-main);color:#fff;font-size:14px;transition:background .2s}
.search-form button:hover{background:var(--brand-deep)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;height:42px;padding:0 12px;border-radius:10px;
  color:var(--ink-strong);background:transparent;border:1px solid transparent;font-size:14px;font-weight:600;transition:all .2s;
}
.icon-btn:hover{background:#fff;border-color:var(--line);color:var(--brand-main)}
.channel-bar{border-top:1px solid rgba(227,221,240,.6)}
.channel-bar-inner{display:flex;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.channel-bar-inner::-webkit-scrollbar{display:none}
.channel-item{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 15px;white-space:nowrap;
  border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink-muted);font-size:14px;font-weight:600;transition:all .2s;
}
.channel-item:hover{color:var(--brand-main);border-color:rgba(106,61,246,.4);background:rgba(106,61,246,.05)}
.channel-item.active,.channel-item[aria-current="page"]{
  background:var(--brand-main);color:#fff;border-color:var(--brand-main);box-shadow:0 6px 15px rgba(106,61,246,.25);
}
@media(max-width:991px){.header-search{display:none}.header-main{flex-wrap:wrap}}
@media(max-width:767px){
  .header-main{gap:12px}
  .logo-text{font-size:17px}
  .logo-badge{width:38px;height:38px;border-radius:12px}
  .header-actions .icon-btn span,.channel-item i{display:none}
  .header-actions{gap:8px}
  .header-actions .btn{padding:0 13px;font-size:14px;min-height:40px}
}
@media(max-width:480px){
  .header-actions .btn span{display:none}
}

/* ========== 分类 Hero ========== */
.category-hero{
  position:relative;
  min-height:62vh;
  display:flex;align-items:center;
  background:url('/assets/images/backpic/back-2.webp') center 30% / cover no-repeat;
  color:#fff;overflow:hidden;
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(35,17,77,.94) 6%,rgba(60,26,150,.78) 46%,rgba(24,9,58,.45));
}
.category-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 88% 18%,rgba(255,183,44,.18),transparent 32%);
}
.hero-content{position:relative;z-index:2;width:100%}
.page-breadcrumb{
  display:flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px;flex-wrap:wrap;
}
.page-breadcrumb a{color:rgba(255,255,255,.8)}
.page-breadcrumb a:hover{color:#fff}
.page-breadcrumb .sep{opacity:.7}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.25);
  border-radius:999px;padding:5px 14px;font-size:13px;color:#fff;margin-bottom:22px;backdrop-filter:blur(4px);
}
.hero-kicker i{color:var(--accent-sun)}
.category-hero h1{
  color:#fff;font-size:clamp(2rem,4.6vw,3.4rem);max-width:850px;margin-bottom:16px;letter-spacing:.01em;
}
.hero-sub{
  max-width:720px;color:rgba(255,255,255,.82);font-size:16px;line-height:1.9;margin-bottom:28px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px}
.hero-stat-row{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18);max-width:720px;
}
.hero-stat strong{display:block;font-size:24px;color:#fff;line-height:1.3}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.64)}
@media(max-width:767px){.category-hero{min-height:70vh}.hero-stat-row{gap:18px}}

/* ========== 频道说明区 ========== */
.channel-intro{
  background:var(--surface-card);
  border-bottom:1px solid var(--line);
}
.intro-card{
  background:linear-gradient(140deg,#fff, #F7F2FF);
  border:1px solid var(--line);border-radius:var(--radius-l);padding:28px;height:100%;
}
.intro-card .lead-icon{
  width:50px;height:50px;border-radius:15px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-main);color:#fff;font-size:20px;margin-bottom:18px;
}
.intro-card h3{font-size:18px;margin-bottom:8px}
.intro-card p{color:var(--ink-muted);font-size:14.5px;line-height:1.75;margin-bottom:0}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tag-cloud .badge-tag{height:30px;padding:0 15px;background:#fff;border:1px solid var(--line)}

/* ========== 活动卡片 ========== */
.collection-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.event-col{
  display:flex;flex-direction:column;background:var(--surface-card);border:1px solid var(--line);
  border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.event-col:hover{
  transform:translateY(-5px);border-color:rgba(106,61,246,.28);box-shadow:var(--shadow-hover);
}
.event-col .cover-box{position:relative;overflow:hidden;aspect-ratio:16/9;background:#E7DEF4}
.event-col .cover-box img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.event-col:hover .cover-box img{transform:scale(1.045)}
.cover-badges{position:absolute;left:14px;top:14px;display:flex;gap:8px}
.event-col .card-body{display:flex;flex-direction:column;flex:1;padding:20px 20px 18px}
.event-col h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.event-col h3 a{color:var(--ink-strong)}
.event-col h3 a:hover{color:var(--brand-main)}
.event-col .card-desc{
  font-size:14px;color:var(--ink-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;
}
.col-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid #F0EAF7;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.meta-time{font-size:13px;color:var(--ink-muted);display:inline-flex;align-items:center;gap:6px}
.text-link{
  font-size:13px;font-weight:600;color:var(--brand-main);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
}
.text-link:hover{color:var(--brand-deep)}
@media(max-width:991px){.collection-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.collection-grid{grid-template-columns:1fr}.event-col .cover-box{aspect-ratio:16/10}}

/* ========== 领取流程 ========== */
.steps-area{background:var(--surface-card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step-card{
  height:100%;background:#FBF8FE;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:26px;position:relative;
}
.step-num{
  font-size:13px;font-weight:700;color:var(--brand-main);
  display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 10px;
  background:#EFE9FF;border-radius:999px;margin-bottom:18px;
}
.step-card i{font-size:22px;color:var(--brand-main);margin-bottom:12px}
.step-card h3{font-size:17px;margin-bottom:6px}
.step-card p{color:var(--ink-muted);font-size:14px;margin-bottom:0}

/* ========== 其他频道条 ========== */
.channel-switch{
  background:var(--bg-page);
}
.channel-switch-wrap{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-l);padding:26px;
}
.channel-switch-wrap .channel-item{height:42px;padding:0 18px;font-size:14.5px}

/* ========== FAQ ========== */
.faq-panel{max-width:920px}
.faq-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;
  box-shadow:0 4px 12px rgba(77,46,142,.04);
}
.faq-card .faq-q{
  display:flex;align-items:flex-start;gap:14px;padding:20px 22px;cursor:pointer;user-select:none;
}
.faq-card .faq-q .q-index{
  font-family:inherit;font-weight:700;font-size:13px;color:#B7A8D6;min-width:26px;line-height:1.8;
}
.faq-card .faq-q h3{font-size:16px;margin:0;color:var(--ink-strong);line-height:1.6}
.faq-card .faq-a{
  color:var(--ink-muted);font-size:14.5px;line-height:1.85;padding:0 22px 20px 62px;
}
.faq-card .faq-toggle{
  margin-left:auto;color:var(--brand-main);width:26px;height:26px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;transition:transform .25s;
}
.faq-card.open .faq-toggle{transform:rotate(180deg)}
.faq-arrow{transition:transform .25s}

/* ========== CTA ========== */
.collect-cta{
  background:var(--brand-deep) url('/assets/images/backpic/back-3.png') center right / cover no-repeat;
  position:relative;border-radius:var(--radius-l);overflow:hidden;color:#fff;
}
.collect-cta::before{
  content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(37,14,98,.97),rgba(60,26,150,.62),rgba(60,26,150,.3));
}
.collect-cta .container-inner{position:relative;z-index:2;padding:60px clamp(24px,4vw,64px)}
.cta-title h2{color:#fff;font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:10px}
.cta-title p{color:rgba(255,255,255,.76);max-width:560px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:767px){.collect-cta .row{gap:22px}}

/* ========== 页脚 ========== */
.site-footer{
  background:var(--brand-deep);color:rgba(255,255,255,.72);font-size:14px;margin-top:70px;
}
.footer-main{padding:56px 0 38px}
.footer-brand{
  display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:12px;
}
.footer-brand .logo-badge{background:#fff;color:var(--brand-deep)}
.footer-about{max-width:330px;color:rgba(255,255,255,.62);font-size:14px;line-height:1.8}
.footer-title{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.footer-title::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-sun)}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer-links a{color:rgba(255,255,255,.62);font-size:14px;transition:all .2s}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-note{
  border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:14px 16px;
  background:rgba(255,255,255,.05);color:rgba(255,255,255,.62);font-size:13px;line-height:1.75;
}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  padding-top:16px;padding-bottom:16px;font-size:13px;color:rgba(255,255,255,.52);
}
@media(max-width:767px){.footer-main{padding-top:36px}.site-footer{margin-top:44px}}