/* roulang page: index */
:root {
  --c-primary: #0E7A6B;
  --c-primary-deep: #0A5C51;
  --c-primary-soft: #E4F2EF;
  --c-accent: #E8612A;
  --c-accent-soft: #FDE9E0;
  --c-ink: #1F2825;
  --c-muted: #68736F;
  --c-body-bg: #F4F6F5;
  --c-card-bg: #FFFFFF;
  --c-line: #E3E9E6;
  --c-dark: #102A28;
  --success: #1A9B6C;
  --warning: #D9A014;
  --error: #D64B3F;
  --info: #3B82B6;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", serif;
  --font-num: "DIN Alternate", "Barlow", "Roboto Condensed", sans-serif;
  --radius-btn: 6px;
  --radius-card: 10px;
  --radius-tag: 999px;
  --shadow-card: 0 1px 2px rgba(16,42,40,.05), 0 4px 12px rgba(16,42,40,.04);
  --shadow-hover: 0 4px 8px rgba(16,42,40,.06), 0 12px 28px rgba(16,42,40,.08);
  --shadow-nav: 0 2px 12px rgba(16,42,40,.08);
  --shadow-cta: 0 6px 16px rgba(232,97,42,.28);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-ink);
  background: var(--c-body-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-primary-deep); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; outline: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* === 按钮 === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  min-height: 48px;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--c-accent); color: #fff; box-shadow: var(--shadow-cta); }
.btn--primary:hover { background: #D9511F; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(232,97,42,.35); }
.btn--primary:active { transform: translateY(0); }
.btn--outline { border: 2px solid var(--c-primary); color: var(--c-primary); background: transparent; }
.btn--outline:hover { background: var(--c-primary-soft); color: var(--c-primary-deep); }
.btn--light { background: #fff; color: var(--c-dark); }
.btn--light:hover { background: var(--c-primary-soft); color: var(--c-dark); }
.btn--link { padding: 8px 0; color: var(--c-primary); font-weight: 600; background: none; }
.btn--link:hover { color: var(--c-primary-deep); }
.btn--link .arrow { transition: transform .25s ease; }
.btn--link:hover .arrow { transform: translateX(4px); }
.btn--large { font-size: 18px; padding: 16px 44px; min-height: 56px; }

/* === 导航 === */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid var(--c-line);
}
.nav-top {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--c-line);
  padding: 0 24px;
}
.nav-brand { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-brand__icon {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 14px;
}
.nav-brand__text { font-size: 18px; font-weight: 700; color: var(--c-ink); letter-spacing: .5px; }
.nav-brand__text .hl { color: var(--c-primary); }

.nav-hot {
  display: flex; align-items: center; gap: 12px;
  overflow: hidden; flex: 1; justify-content: center;
}
.nav-hot a { font-size: 13px; color: var(--c-primary); white-space: nowrap; }
.nav-hot a:hover { color: var(--c-primary-deep); }
.nav-hot .hash { color: var(--c-muted); margin-right: 2px; }

.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-search {
  display: flex; align-items: center;
  background: var(--c-body-bg);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: 6px 14px;
  width: 220px;
  transition: border-color .2s;
}
.nav-search:focus-within { border-color: var(--c-primary); }
.nav-search svg { width: 16px; height: 16px; flex-shrink: 0; fill: var(--c-muted); }
.nav-search input { border: none; background: none; font-size: 14px; margin-left: 6px; width: 100%; color: var(--c-ink); }
.nav-search input::placeholder { color: var(--c-muted); }
.nav-login {
  font-size: 14px; font-weight: 600; color: var(--c-primary);
  border: 1px solid var(--c-primary);
  border-radius: 999px;
  padding: 6px 18px;
  min-height: 34px;
  transition: all .2s;
  white-space: nowrap;
}
.nav-login:hover { background: var(--c-primary-soft); }

.nav-channels {
  height: 48px;
  display: flex; align-items: center;
  gap: 4px;
  padding: 0 24px;
  background: #fff;
}
.nav-channels a {
  display: inline-flex; align-items: center;
  font-size: 15px; font-weight: 500;
  color: var(--c-ink);
  padding: 0 18px;
  height: 48px;
  position: relative;
  white-space: nowrap;
  transition: color .2s;
}
.nav-channels a:hover { color: var(--c-primary); }
.nav-channels a.active { color: var(--c-primary); font-weight: 600; }
.nav-channels a.active::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 6px;
  height: 3px; border-radius: 2px; background: var(--c-primary);
}
.nav-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 6px; }
.nav-toggle svg { width: 22px; height: 22px; fill: var(--c-ink); }

.mobile-menu {
  display: none;
  position: fixed; inset: 0; z-index: 99;
  background: rgba(16,42,40,.5);
}
.mobile-menu.open { display: block; }
.mobile-menu__panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 280px; max-width: 85vw;
  background: #fff;
  padding: 72px 24px 24px;
  box-shadow: -8px 0 30px rgba(16,42,40,.15);
  overflow-y: auto;
}
.mobile-menu__close { position: absolute; top: 14px; right: 14px; width: 40px; height: 40px; font-size: 24px; color: var(--c-muted); }
.mobile-menu__panel a {
  display: block; padding: 14px 0;
  font-size: 16px; font-weight: 500;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-line);
}
.mobile-menu__panel a.active { color: var(--c-primary); }
.mobile-menu__panel a:hover { color: var(--c-primary); }

/* === Hero === */
.hero {
  position: relative;
  min-height: 560px;
  display: flex; align-items: center;
  background: linear-gradient(90deg, rgba(16,42,40,.92), rgba(16,42,40,.42) 60%, rgba(16,42,40,.18)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero-content { position: relative; z-index: 2; max-width: 680px; padding: 72px 0; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: rgba(255,255,255,.9);
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); display: inline-block; }
.hero-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero-title .accent { color: var(--c-accent); }
.hero-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,.85);
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-stats {
  display: flex; gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.hero-stat {
  background: rgba(255,255,255,.12);
  border-radius: 10px;
  padding: 14px 20px;
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(4px);
  min-width: 120px;
}
.hero-stat__num {
  font-family: var(--font-num);
  font-size: 28px; font-weight: 700;
  color: #fff;
  display: block;
  line-height: 1.1;
}
.hero-stat__num .span { font-size: 14px; }
.hero-stat__label {
  font-size: 12px; color: rgba(255,255,255,.75);
  margin-top: 4px; display: block;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn--outline-light {
  border: 2px solid rgba(255,255,255,.7);
  color: #fff;
  background: transparent;
}
.hero .btn--outline-light:hover { background: rgba(255,255,255,.12); }

/* === 通用板块 === */
.section { padding: 72px 0; }
.section-header { margin-bottom: 40px; }
.section-header .kicker {
  display: inline-block;
  font-size: 13px; font-weight: 600;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.section-header h2 {
  font-size: 28px; font-weight: 700;
  color: var(--c-ink);
  position: relative;
  padding-left: 18px;
  line-height: 1.3;
}
.section-header h2::before {
  content: ''; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 4px; border-radius: 2px;
  background: var(--c-primary);
}
.section-header .sub {
  font-size: 14px; color: var(--c-muted);
  margin-top: 10px;
  max-width: 640px;
}

/* === 玩法介绍 === */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
  text-align: center;
  border: 1px solid var(--c-line);
  transition: all .3s ease;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-card__num {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-family: var(--font-num);
  font-size: 22px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step-card h3 { font-size: 18px; font-weight: 600; color: var(--c-ink); margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* === 奖励预览 === */
.rewards-section { background: var(--c-card-bg); }
.rewards-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
}
.reward-card--large {
  grid-row: span 2;
  border-radius: var(--radius-card);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--c-line);
  min-height: 100%;
  display: flex; flex-direction: column;
  transition: all .3s ease;
}
.reward-card--large:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.reward-card--large .reward-card__cover {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--c-primary-soft);
}
.reward-card--large .reward-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.reward-card--large .reward-card__cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(16,42,40,.55));
}
.reward-card__badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: var(--c-accent);
  color: #fff;
  font-size: 12px; font-weight: 600;
  border-radius: 999px;
  padding: 4px 14px;
}
.reward-card--large .reward-card__amount {
  position: absolute; bottom: 14px; left: 20px; z-index: 2;
  color: #fff;
  font-family: var(--font-num);
  font-size: 40px; font-weight: 700;
}
.reward-card--large .reward-card__body { padding: 24px; }
.reward-card--large h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
.reward-card--large p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }
.reward-card {
  border-radius: var(--radius-card);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  background: var(--c-card-bg);
  transition: all .3s ease;
}
.reward-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.reward-card__thumb { width: 120px; flex-shrink: 0; background: var(--c-primary-soft); position: relative; }
.reward-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.reward-card__body { padding: 14px 16px; flex: 1; }
.reward-card__body .tag {
  display: inline-block;
  font-size: 11px; font-weight: 600;
  background: var(--c-accent-soft);
  color: var(--c-accent);
  border-radius: 999px;
  padding: 2px 10px;
  margin-bottom: 6px;
}
.reward-card__body h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.reward-card__body .amount { font-family: var(--font-num); font-size: 22px; font-weight: 700; color: var(--c-accent); }
.reward-card__body .desc { font-size: 12px; color: var(--c-muted); margin-top: 4px; }

/* === 任务进度 === */
.task-section {
  background: var(--c-dark);
  color: #fff;
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.task-section::before {
  content: ''; position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  border: 30px solid rgba(255,255,255,.05);
  top: -80px; right: -60px;
}
.task-section::after {
  content: ''; position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  border: 20px solid rgba(255,255,255,.04);
  bottom: -60px; left: 20%;
}
.task-section .section-header h2 { color: #fff; }
.task-section .section-header h2::before { background: var(--c-accent); }
.task-section .section-header .sub { color: rgba(255,255,255,.7); }
.task-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 28px;
  position: relative;
  z-index: 2;
}
.task-card__top {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.task-card__title { font-size: 20px; font-weight: 600; }
.task-card__desc { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 4px; }
.task-card__timer {
  font-family: var(--font-num);
  font-size: 22px; font-weight: 700;
  color: var(--c-accent);
  background: rgba(232,97,42,.18);
  border-radius: 8px;
  padding: 8px 16px;
  white-space: nowrap;
}
.task-list { margin-top: 16px; }
.task-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 14px;
}
.task-item:last-child { border-bottom: none; }
.task-item__check {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.4);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: #fff;
}
.task-item--done .task-item__check { background: var(--success); border-color: var(--success); }
.task-item--active .task-item__check { border-color: var(--c-accent); }
.task-item--active .task-item__label { color: #fff; font-weight: 600; }
.task-item__label { color: rgba(255,255,255,.75); }
.task-item--done .task-item__label { color: rgba(255,255,255,.5); text-decoration: line-through; }
.task-item__status { margin-left: auto; font-size: 12px; color: rgba(255,255,255,.5); }
.task-progress { margin-top: 16px; }
.task-progress__bar {
  height: 8px; border-radius: 999px;
  background: rgba(255,255,255,.15);
  overflow: hidden;
  position: relative;
}
.task-progress__fill {
  height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, var(--c-primary), #3FB39F);
  width: 68%;
  transition: width .6s ease;
}
.task-progress__label {
  display: flex; justify-content: space-between;
  font-size: 12px; color: rgba(255,255,255,.6);
  margin-top: 6px;
}
.task-progress__label .pct { font-family: var(--font-num); font-weight: 600; color: #fff; }
.task-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px; margin-top: 24px;
}
.task-stat {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.task-stat__num { font-family: var(--font-num); font-size: 24px; font-weight: 700; color: var(--c-primary-soft); }
.task-stat__label { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 4px; }

/* === CTA === */
.cta-section {
  background: var(--c-dark);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  border: 40px solid rgba(255,255,255,.04);
  left: -100px; top: -100px;
}
.cta-section::after {
  content: ''; position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  border: 24px solid rgba(255,255,255,.03);
  right: 40px; bottom: -60px;
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: 28px; color: #fff; font-weight: 700; margin-bottom: 10px; }
.cta-content p { font-size: 15px; color: rgba(255,255,255,.75); margin-bottom: 28px; }

/* === 最新资讯 === */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--c-line);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: all .3s ease;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-card:hover .news-card__title { color: var(--c-primary); }
.news-card__cover {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--c-primary-soft);
}
.news-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-card__cover img { transform: scale(1.05); }
.news-card__tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--c-accent); color: #fff;
  font-size: 12px; font-weight: 600;
  border-radius: 999px;
  padding: 4px 12px;
  z-index: 2;
}
.news-card__body { padding: 20px 24px 16px; display: flex; flex-direction: column; flex: 1; }
.news-card__title { font-size: 17px; font-weight: 600; color: var(--c-ink); line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__summary { font-size: 14px; color: var(--c-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 14px; flex: 1; }
.news-card__meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--c-muted); border-top: 1px solid var(--c-line); padding-top: 12px; }
.news-card__meta .date { display: flex; align-items: center; gap: 4px; }
.news-card__meta svg { width: 14px; height: 14px; fill: currentColor; }

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--c-card-bg);
  border-radius: var(--radius-card);
  border: 1px dashed var(--c-line);
}
.news-empty__icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
}
.news-empty p { font-size: 16px; color: var(--c-ink); font-weight: 500; }
.news-empty .sub { font-size: 14px; color: var(--c-muted); margin-top: 6px; }

/* === FAQ === */
.faq-section { background: var(--c-card-bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--c-line);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item.open { border-color: var(--c-primary); background: var(--c-primary-soft); }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
  font-size: 16px; font-weight: 600;
  color: var(--c-ink);
  text-align: left;
  gap: 12px;
  min-height: 56px;
}
.faq-q:hover { color: var(--c-primary); }
.faq-q .icon {
  width: 22px; height: 22px; flex-shrink: 0;
  position: relative;
}
.faq-q .icon::before, .faq-q .icon::after {
  content: ''; position: absolute;
  background: var(--c-primary);
  border-radius: 2px;
  width: 14px; height: 2px;
  top: 10px; left: 4px;
  transition: transform .3s ease;
}
.faq-q .icon::after { transform: rotate(90deg); }
.faq-item.open .faq-q .icon::after { transform: rotate(0deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner { padding: 0 24px 20px; font-size: 14px; color: var(--c-muted); line-height: 1.8; border-top: 1px solid rgba(14,122,107,.15); padding-top: 16px; }

/* === 页脚 === */
.main-footer {
  background: var(--c-dark);
  color: rgba(255,255,255,.8);
  border-top: 3px solid var(--c-primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 32px;
}
.footer-brand .nav-brand__text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.65); margin-top: 12px; max-width: 320px; }
.footer-badge {
  display: inline-block;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  font-size: 12px;
  padding: 4px 14px;
  margin-top: 12px;
  color: rgba(255,255,255,.6);
}
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,.65);
  padding: 5px 0;
  transition: color .2s;
}
.footer-col a:hover { color: var(--c-primary-soft); }
.footer-col .contact-item { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; margin-bottom: 10px; color: rgba(255,255,255,.65); }
.footer-col .contact-item svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; fill: var(--c-primary-soft); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.45);
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .rewards-grid { grid-template-columns: 1fr 1fr; }
  .reward-card--large { grid-row: span 1; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-hot { display: none; }
  .nav-search { width: 180px; }
}

@media (max-width: 640px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .nav-top { padding: 0 16px; }
  .nav-hot { display: none; }
  .nav-search { display: none; }
  .nav-login { display: none; }
  .nav-toggle { display: flex; }
  .nav-channels { overflow-x: auto; -webkit-overflow-scrolling: touch; padding: 0 8px; }
  .nav-channels::-webkit-scrollbar { display: none; }
  .nav-channels a { padding: 0 14px; font-size: 14px; }
  .hero { min-height: 480px; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { gap: 10px; }
  .hero-stat { min-width: 30%; padding: 12px 14px; }
  .hero-stat__num { font-size: 22px; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 24px; }
  .steps-grid { grid-template-columns: 1fr; }
  .rewards-grid { grid-template-columns: 1fr; }
  .reward-card--large { grid-row: span 1; }
  .reward-card { flex-direction: column; }
  .reward-card__thumb { width: 100%; aspect-ratio: 4/3; }
  .task-stats { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 40px 0 24px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .btn--large { font-size: 16px; padding: 14px 30px; }
  .cta-content h2 { font-size: 24px; }
  .faq-q { padding: 16px 18px; font-size: 15px; }
  .faq-a-inner { padding: 0 18px 16px; }
  .task-card__top { flex-direction: column; }
}

/* roulang page: category1 */
:root {
  --c-primary: #0E7A6B;
  --c-primary-deep: #0A5C51;
  --c-primary-soft: #E4F2EF;
  --c-accent: #E8612A;
  --c-accent-soft: #FDE9E0;
  --c-ink: #1F2825;
  --c-muted: #68736F;
  --c-body-bg: #F4F6F5;
  --c-card-bg: #FFFFFF;
  --c-line: #E3E9E6;
  --c-dark: #102A28;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", serif;
  --font-num: "DIN Alternate", "Barlow", "Roboto Condensed", sans-serif;
  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 12px;
  --shadow-card: 0 1px 2px rgba(16,42,40,.05), 0 4px 12px rgba(16,42,40,.04);
  --shadow-hover: 0 4px 8px rgba(16,42,40,.06), 0 12px 28px rgba(16,42,40,.08);
  --shadow-nav: 0 2px 12px rgba(16,42,40,.08);
  --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--c-body-bg);
  color: var(--c-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--c-primary-deep); }
img { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* ===== Header / Nav ===== */
.main-nav {
  position: sticky; top: 0; z-index: 999;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-nav);
}
.nav-top {
  max-width: 1200px; margin: 0 auto; padding: 8px 24px;
  display: flex; align-items: center; gap: 20px; height: 52px;
}
.nav-brand { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-brand__icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--c-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}
.nav-brand__text { font-size: 18px; font-weight: 700; color: var(--c-ink); letter-spacing: .5px; }
.nav-brand__text .hl { color: var(--c-primary); }
.nav-hot { display: flex; gap: 14px; flex: 1; overflow: hidden; white-space: nowrap; }
.nav-hot a { font-size: 13px; color: var(--c-muted); display: inline-flex; align-items: center; gap: 2px; }
.nav-hot .hash { color: var(--c-primary); font-weight: 700; }
.nav-hot a:hover { color: var(--c-primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search {
  display: flex; align-items: center; gap: 6px;
  background: var(--c-primary-soft); border-radius: 999px;
  padding: 6px 14px; width: 220px;
}
.nav-search svg { width: 16px; height: 16px; fill: var(--c-muted); flex-shrink: 0; }
.nav-search input { border: none; background: transparent; outline: none; font-size: 13px; color: var(--c-ink); width: 100%; }
.nav-search input::placeholder { color: var(--c-muted); }
.nav-login {
  font-size: 13px; font-weight: 600; color: var(--c-primary);
  border: 2px solid var(--c-primary); border-radius: 999px;
  padding: 6px 16px; transition: var(--transition);
}
.nav-login:hover { background: var(--c-primary); color: #fff; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; align-items: center; justify-content: center; }
.nav-toggle svg { width: 22px; height: 22px; fill: var(--c-ink); }
.nav-channels {
  display: flex; gap: 4px; align-items: center;
  background: #fff; border-top: 1px solid var(--c-line);
  padding: 0 24px; height: 46px;
}
.nav-channels a {
  font-size: 15px; color: var(--c-muted); font-weight: 500;
  padding: 12px 16px; position: relative; white-space: nowrap;
}
.nav-channels a:hover { color: var(--c-primary); }
.nav-channels a::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 0;
  height: 3px; background: var(--c-primary); border-radius: 3px 3px 0 0;
  opacity: 0; transform: scaleX(.4); transition: var(--transition);
}
.nav-channels a.active { color: var(--c-primary); font-weight: 600; }
.nav-channels a.active::after { opacity: 1; transform: scaleX(1); }

/* ===== Hero ===== */
.cat-hero {
  position: relative;
  min-height: 480px;
  display: flex; align-items: center;
  background: linear-gradient(90deg, rgba(16,42,40,.94), rgba(16,42,40,.62) 55%, rgba(16,42,40,.25)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: #fff;
}
.cat-hero .container { position: relative; z-index: 2; width: 100%; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px; padding: 6px 14px; font-size: 13px; color: rgba(255,255,255,.88);
  letter-spacing: .5px; margin-bottom: 20px;
}
.hero-tag::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }
.cat-hero h1 {
  font-size: 44px; font-weight: 700; line-height: 1.25;
  margin-bottom: 16px; letter-spacing: 1px;
}
.cat-hero h1 span { color: var(--c-accent); }
.hero-sub { font-size: 17px; color: rgba(255,255,255,.85); max-width: 560px; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-accent); color: #fff; font-size: 16px; font-weight: 600;
  padding: 13px 32px; border-radius: var(--radius-s);
  box-shadow: 0 6px 16px rgba(232,97,42,.28);
  transition: var(--transition); min-height: 48px;
}
.btn-primary:hover { background: #D9511F; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(232,97,42,.36); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  border: 2px solid rgba(255,255,255,.7); color: #fff; font-size: 16px; font-weight: 600;
  padding: 12px 30px; border-radius: var(--radius-s);
  background: transparent; transition: var(--transition); min-height: 48px;
}
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.1); color: #fff; }
.hero-stats { display: flex; gap: 36px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats .stat-num { font-family: var(--font-num); font-size: 32px; font-weight: 700; color: #fff; line-height: 1; }
.hero-stats .stat-label { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ===== Section ===== */
.section { padding: 72px 0; }
.section-head { display: flex; align-items: center; gap: 14px; margin-bottom: 40px; }
.section-head .bar { width: 32px; height: 4px; background: var(--c-primary); border-radius: 2px; flex-shrink: 0; }
.section-head h2 { font-size: 28px; font-weight: 700; color: var(--c-ink); }
.section-head .sub { font-size: 14px; color: var(--c-muted); margin-left: auto; }

/* ===== Feature Cards ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  background: var(--c-card-bg); border: 1px solid var(--c-line);
  border-radius: var(--radius-m); padding: 28px 24px;
  box-shadow: var(--shadow-card); transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-primary), transparent);
  opacity: 0; transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: transparent; }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--c-primary-soft); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg { width: 26px; height: 26px; fill: var(--c-primary); }
.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--c-ink); }
.feature-card p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* ===== Match Cards ===== */
.match-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.match-card {
  background: var(--c-card-bg); border-radius: var(--radius-l);
  overflow: hidden; border: 1px solid var(--c-line);
  box-shadow: var(--shadow-card); transition: var(--transition);
  display: flex; flex-direction: column;
}
.match-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.match-cover { position: relative; aspect-ratio: 4 / 3; background: var(--c-primary-soft); overflow: hidden; }
.match-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.match-card:hover .match-cover img { transform: scale(1.04); }
.match-cover .live-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--c-accent); color: #fff; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px; letter-spacing: .5px;
}
.match-cover .score-badge {
  position: absolute; right: 12px; bottom: 12px;
  background: rgba(16,42,40,.82); color: #fff;
  font-family: var(--font-num); font-size: 24px; font-weight: 700;
  padding: 6px 14px; border-radius: 8px; letter-spacing: 1px;
}
.match-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.match-body .match-league { font-size: 12px; color: var(--c-primary); font-weight: 600; letter-spacing: .5px; margin-bottom: 6px; }
.match-body h3 { font-size: 18px; font-weight: 600; color: var(--c-ink); margin-bottom: 8px; line-height: 1.5; }
.match-body p { font-size: 14px; color: var(--c-muted); line-height: 1.7; flex: 1; }
.match-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--c-line); }
.match-meta .time { font-size: 13px; color: var(--c-muted); display: flex; align-items: center; gap: 4px; }
.match-meta .more { font-size: 13px; font-weight: 600; color: var(--c-primary); display: inline-flex; align-items: center; gap: 4px; }
.match-meta .more svg { width: 14px; height: 14px; fill: var(--c-primary); transition: transform .2s ease; }
.match-meta .more:hover svg { transform: translateX(4px); }

/* ===== Steps ===== */
.steps-section { background: var(--c-dark); color: #fff; }
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head .sub { color: rgba(255,255,255,.6); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.step-item { position: relative; padding: 32px 24px; border-radius: var(--radius-m); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); transition: var(--transition); }
.step-item:hover { background: rgba(255,255,255,.09); transform: translateY(-3px); }
.step-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  font-family: var(--font-num); font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.step-item h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; color: #fff; }
.step-item p { font-size: 14px; color: rgba(255,255,255,.7); line-height: 1.7; }

/* ===== Data Panel ===== */
.data-panel {
  background: linear-gradient(135deg, #102A28 0%, #0E3A35 100%);
  border-radius: var(--radius-l); padding: 48px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  color: #fff; position: relative; overflow: hidden;
}
.data-panel::after {
  content: ''; position: absolute; right: -60px; top: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.06); pointer-events: none;
}
.data-item { text-align: center; position: relative; z-index: 2; }
.data-item .data-value { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--c-accent); line-height: 1.2; }
.data-item .data-label { font-size: 14px; color: rgba(255,255,255,.65); margin-top: 8px; }

/* ===== News Rows ===== */
.news-rows { display: flex; flex-direction: column; gap: 16px; }
.news-row {
  display: flex; gap: 16px; align-items: center;
  background: var(--c-card-bg); border: 1px solid var(--c-line);
  border-radius: var(--radius-m); padding: 12px;
  transition: var(--transition); cursor: pointer;
}
.news-row:hover { background: var(--c-primary-soft); border-color: transparent; transform: translateX(4px); box-shadow: var(--shadow-card); }
.news-row img { width: 120px; height: 80px; object-fit: cover; border-radius: 8px; background: var(--c-primary-soft); flex-shrink: 0; }
.news-row-body { flex: 1; min-width: 0; }
.news-row-body .tag { font-size: 12px; color: var(--c-accent); font-weight: 600; display: block; margin-bottom: 4px; }
.news-row-body h3 { font-size: 16px; font-weight: 600; color: var(--c-ink); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-row-body p { font-size: 13px; color: var(--c-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-row-meta { font-size: 13px; color: var(--c-muted); flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.news-row-meta .views { display: flex; align-items: center; gap: 4px; }

/* ===== FAQ ===== */
.faq-section { background: var(--c-card-bg); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--c-line); border-radius: var(--radius-m); margin-bottom: 12px; overflow: hidden; transition: var(--transition); }
.faq-item.active { border-color: var(--c-primary); background: var(--c-primary-soft); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--c-ink);
  cursor: pointer; transition: var(--transition); text-align: left; width: 100%;
}
.faq-question:hover { color: var(--c-primary); }
.faq-icon { width: 24px; height: 24px; position: relative; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after {
  content: ''; position: absolute; background: var(--c-primary); border-radius: 2px;
  top: 50%; left: 50%; transform: translate(-50%, -50%); transition: var(--transition);
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after { width: 2px; height: 14px; }
.faq-item.active .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer-inner { padding: 0 22px 18px; font-size: 14px; color: var(--c-muted); line-height: 1.8; }

/* ===== CTA ===== */
.cta-panel {
  background: var(--c-dark); position: relative; overflow: hidden;
  padding: 72px 0; text-align: center; color: #fff;
}
.cta-panel::before, .cta-panel::after {
  content: ''; position: absolute; border-radius: 50%; border: 2px solid rgba(255,255,255,.06);
  pointer-events: none;
}
.cta-panel::before { width: 320px; height: 320px; left: -80px; bottom: -120px; }
.cta-panel::after { width: 180px; height: 180px; right: 60px; top: -60px; }
.cta-panel h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-panel p { font-size: 15px; color: rgba(255,255,255,.7); margin-bottom: 32px; }
.cta-panel .btn-primary { font-size: 18px; padding: 15px 42px; position: relative; z-index: 2; }

/* ===== Footer ===== */
.main-footer { background: var(--c-dark); color: #fff; padding: 56px 0 24px; position: relative; }
.main-footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--c-primary); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 48px; margin-bottom: 36px; }
.footer-brand .nav-brand__text { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.6); margin: 16px 0; line-height: 1.8; max-width: 360px; }
.footer-badge { display: inline-block; font-size: 12px; color: rgba(255,255,255,.45); border: 1px solid rgba(255,255,255,.15); border-radius: 999px; padding: 4px 12px; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 16px; color: #fff; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.65); padding: 5px 0; }
.footer-col a:hover { color: var(--c-primary-soft); }
.contact-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.65); padding: 6px 0; }
.contact-item svg { width: 16px; height: 16px; fill: var(--c-primary-soft); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px; text-align: center;
  font-size: 12px; color: rgba(255,255,255,.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .match-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .data-panel { grid-template-columns: repeat(2, 1fr); padding: 36px; }
  .nav-hot { display: none; }
  .nav-search { width: 160px; }
  .cat-hero h1 { font-size: 38px; }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .main-nav .nav-top { padding: 8px 16px; }
  .nav-channels { overflow-x: auto; -webkit-overflow-scrolling: touch; padding: 0 16px; }
  .nav-channels::-webkit-scrollbar { display: none; }
  .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .nav-channels { height: auto; flex-wrap: nowrap; }
  .nav-channels a { padding: 10px 14px; font-size: 14px; flex-shrink: 0; }
  .section { padding: 48px 0; }
  .cat-hero { min-height: 440px; }
  .cat-hero h1 { font-size: 32px; }
  .hero-stats { gap: 24px; }
  .btn-primary, .btn-ghost { padding: 12px 24px; }
  .cta-panel { padding: 48px 0; }
  .cta-panel h2 { font-size: 24px; }
}
@media (max-width: 520px) {
  .feature-grid, .match-grid, .steps-grid { grid-template-columns: 1fr; }
  .data-panel { grid-template-columns: 1fr 1fr; padding: 28px; gap: 20px; }
  .news-row { flex-wrap: wrap; }
  .news-row img { width: 100%; height: auto; aspect-ratio: 16/9; }
  .news-row-meta { flex-direction: row; width: 100%; justify-content: flex-start; gap: 14px; }
  .nav-brand__text { font-size: 16px; }
  .hero-stats .stat-num { font-size: 24px; }
  .section-head h2 { font-size: 22px; }
  .container { padding-left: 16px; padding-right: 16px; }
}

/* roulang page: article */
:root {
  --c-primary: #0E7A6B;
  --c-primary-deep: #0A5C51;
  --c-primary-soft: #E4F2EF;
  --c-accent: #E8612A;
  --c-accent-soft: #FDE9E0;
  --c-ink: #1F2825;
  --c-muted: #68736F;
  --c-body-bg: #F4F6F5;
  --c-card-bg: #FFFFFF;
  --c-line: #E3E9E6;
  --c-dark: #102A28;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", serif;
  --font-num: "DIN Alternate", "Barlow", "Roboto Condensed", sans-serif;
  --radius-btn: 6px;
  --radius-card: 10px;
  --radius-tag: 999px;
  --shadow-sm: 0 1px 2px rgba(16,42,40,.05), 0 4px 12px rgba(16,42,40,.04);
  --shadow-hover: 0 4px 8px rgba(16,42,40,.06), 0 12px 28px rgba(16,42,40,.08);
  --container: 1200px;
  --gap: 24px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink);
  background: var(--c-body-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-primary-deep); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 12px 32px; border-radius: var(--radius-btn);
  font-size: 16px; font-weight: 600; border: 2px solid transparent;
  transition: all .2s ease; text-align: center; line-height: 1.4;
}
.btn-accent { background: var(--c-accent); color: #fff; box-shadow: 0 6px 16px rgba(232,97,42,.28); }
.btn-accent:hover { background: #D9511F; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(232,97,42,.34); }
.btn-accent:active { transform: translateY(0); }
.btn-outline { border-color: var(--c-primary); color: var(--c-primary); background: transparent; }
.btn-outline:hover { background: var(--c-primary-soft); color: var(--c-primary-deep); }
.btn-text {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--c-primary); font-weight: 600; font-size: 16px;
  padding: 8px 4px; transition: color .2s ease, gap .2s ease;
}
.btn-text:hover { color: var(--c-primary-deep); gap: 10px; }
.btn-text .arrow { display: inline-block; transition: transform .2s ease; }

/* ===== 标签 / 徽章 ===== */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--c-primary-soft); color: var(--c-primary-deep);
  font-size: 12px; font-weight: 600; padding: 4px 12px;
  border-radius: var(--radius-tag); line-height: 1.6;
}
.tag-accent { background: var(--c-accent-soft); color: var(--c-accent); }
.tag-dark { background: rgba(255,255,255,.15); color: #fff; }

/* ===== 导航 ===== */
.main-nav {
  position: sticky; top: 0; z-index: 999;
  background: rgba(255,255,255,.98);
  border-bottom: 1px solid var(--c-line);
  transition: background .3s ease, box-shadow .3s ease;
}
.main-nav.is-stuck {
  background: rgba(255,255,255,.96);
  box-shadow: 0 2px 12px rgba(16,42,40,.08);
}
.nav-top {
  max-width: var(--container); margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex; align-items: center; gap: 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.nav-brand__icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-deep));
  color: #fff; font-size: 20px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(14,122,107,.3);
}
.nav-brand__text {
  font-size: 19px; font-weight: 700; color: var(--c-ink);
  letter-spacing: .5px; line-height: 1.3;
}
.nav-brand__text .hl { color: var(--c-primary); }
.nav-hot {
  display: flex; align-items: center; gap: 16px;
  flex: 1; min-width: 0; overflow: hidden; white-space: nowrap;
}
.nav-hot a {
  font-size: 13px; color: var(--c-muted);
  display: inline-flex; align-items: center; gap: 3px;
  transition: color .2s ease;
}
.nav-hot a:hover { color: var(--c-primary); }
.nav-hot .hash { color: var(--c-primary); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--c-body-bg); border: 1px solid var(--c-line);
  border-radius: var(--radius-tag); padding: 0 14px;
  height: 40px; width: 220px; transition: border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(14,122,107,.12);
}
.nav-search svg { width: 17px; height: 17px; fill: var(--c-muted); flex-shrink: 0; }
.nav-search input {
  border: none; outline: none; background: transparent;
  width: 100%; font-size: 14px; color: var(--c-ink);
}
.nav-login {
  height: 40px; padding: 0 18px; border-radius: var(--radius-btn);
  background: var(--c-primary); color: #fff; font-size: 14px; font-weight: 600;
  border: none; transition: background .2s ease, transform .2s ease;
  display: inline-flex; align-items: center; justify-content: center;
}
.nav-login:hover { background: var(--c-primary-deep); transform: translateY(-1px); }
.nav-login:active { transform: translateY(0); }
.nav-toggle {
  display: none; width: 44px; height: 44px;
  background: transparent; border: none; border-radius: 6px;
  align-items: center; justify-content: center;
  color: var(--c-ink); transition: background .2s ease;
}
.nav-toggle:hover { background: var(--c-primary-soft); }
.nav-toggle svg { width: 22px; height: 22px; fill: currentColor; }

.nav-channels {
  height: 52px;
  display: flex; align-items: center; gap: 6px;
  overflow-x: auto; scrollbar-width: none;
}
.nav-channels::-webkit-scrollbar { display: none; }
.nav-channels a {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 18px; margin: 2px 0;
  font-size: 15px; font-weight: 500; color: var(--c-muted);
  border-radius: 6px 6px 0 0; white-space: nowrap;
  position: relative; transition: color .2s ease, background .2s ease;
}
.nav-channels a:hover { color: var(--c-primary); background: var(--c-primary-soft); }
.nav-channels a.active { color: var(--c-primary); font-weight: 600; }
.nav-channels a.active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 0;
  height: 3px; border-radius: 3px 3px 0 0; background: var(--c-primary);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px; padding: 24px 0 8px; font-size: 14px; color: var(--c-muted);
}
.breadcrumb a { color: var(--c-muted); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb .sep { color: var(--c-line); }
.breadcrumb .current {
  color: var(--c-primary); font-weight: 600;
  max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ===== 文章头部 ===== */
.article-page { padding-bottom: 20px; }
.article-header {
  background: var(--c-card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--c-line);
  padding: 40px 48px 32px;
  margin: 8px 0 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.article-header::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
}
.article-header h1 {
  margin: 0 0 14px;
  font-size: 34px; line-height: 1.4; font-weight: 700;
  letter-spacing: .5px; color: var(--c-ink);
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 13px; color: var(--c-muted);
  margin-bottom: 16px;
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-item svg { width: 15px; height: 15px; fill: var(--c-primary); }
.article-summary {
  margin: 16px 0 0;
  color: var(--c-muted); font-size: 14px;
  line-height: 1.9;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
  border-left: 3px solid var(--c-primary-soft);
  padding-left: 16px;
}

/* ===== 正文 ===== */
.article-body {
  max-width: 860px; margin: 0 auto;
  background: var(--c-card-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  padding: 48px 56px 56px;
  box-shadow: var(--shadow-sm);
  font-family: var(--font-serif);
  font-size: 17px; line-height: 2.0; color: var(--c-ink);
  word-break: break-word;
}
.article-body p {
  margin: 0 0 1.5em;
  text-indent: 2em;
}
.article-body h2,
.article-body h3,
.article-body h4 {
  font-family: var(--font-sans);
  color: var(--c-ink);
  margin: 1.8em 0 .6em;
  line-height: 1.5;
  font-weight: 700;
}
.article-body h2 { font-size: 24px; }
.article-body h3 { font-size: 21px; }
.article-body h4 { font-size: 18px; }
.article-body h2::before,
.article-body h3::before {
  content: ''; display: inline-block; width: 5px; height: 18px;
  background: var(--c-primary); border-radius: 3px; margin-right: 10px;
  vertical-align: -2px;
}
.article-body a { color: var(--c-primary); border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--c-primary); }
.article-body ul, .article-body ol { margin: 0 0 1.5em; padding-left: 2em; }
.article-body li { margin-bottom: .5em; }
.article-body blockquote {
  margin: 1.6em 0;
  padding: 16px 20px;
  background: var(--c-primary-soft);
  border-left: 4px solid var(--c-primary);
  border-radius: 0 8px 8px 0;
  color: var(--c-ink); font-size: 16px;
}
.article-body blockquote p { text-indent: 0; margin: 0; }
.article-body img {
  margin: 24px auto; border-radius: 8px;
  box-shadow: var(--shadow-sm);
  height: auto;
}
.article-body figure { margin: 24px auto; text-align: center; }
.article-body figure img { margin: 0 auto 8px; }
.article-body figcaption {
  font-size: 13px; color: var(--c-muted);
  font-family: var(--font-sans); text-align: center;
}
.article-body hr {
  border: none; border-top: 1px solid var(--c-line);
  margin: 32px 0;
}
.article-body table {
  width: 100%; border-collapse: collapse; margin: 24px 0;
  font-family: var(--font-sans); font-size: 15px;
}
.article-body table th,
.article-body table td {
  padding: 10px 12px; border: 1px solid var(--c-line);
  text-align: left;
}
.article-body table th { background: var(--c-primary-soft); font-weight: 600; }

/* ===== 空状态 ===== */
.empty-state {
  text-align: center; padding: 64px 24px; color: var(--c-muted);
}
.empty-state .empty-icon {
  width: 64px; height: 64px; border-radius: 50%;
  border: 2px solid var(--c-primary); color: var(--c-primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: 16px;
}
.empty-state h3 { margin: 0 0 8px; font-size: 18px; color: var(--c-ink); }
.empty-state p { margin: 0; font-size: 14px; }

/* ===== 相关推荐 ===== */
.related-section { margin-top: 40px; padding: 48px 0 8px; }
.related-section .section-title {
  font-size: 26px; font-weight: 700; color: var(--c-ink);
  margin: 0 0 8px;
  position: relative; padding-left: 16px;
}
.related-section .section-title::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 4px; border-radius: 4px; background: var(--c-primary);
}
.related-section .section-sub {
  color: var(--c-muted); font-size: 14px; margin: 0 0 24px;
}
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.post-card {
  display: flex; flex-direction: column;
  background: var(--c-card-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
  min-height: 340px;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.post-card:hover .post-card__title { color: var(--c-primary); }
.post-card__media {
  position: relative; aspect-ratio: 4 / 3;
  background: var(--c-primary-soft); overflow: hidden;
}
.post-card__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.post-card:hover .post-card__media img { transform: scale(1.04); }
.post-card__tag {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: var(--c-accent); color: #fff;
  font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: var(--radius-tag);
  box-shadow: 0 2px 6px rgba(0,0,0,.2);
}
.post-card__body {
  display: flex; flex-direction: column; flex: 1;
  padding: 20px; gap: 10px;
}
.post-card__title {
  margin: 0; font-size: 18px; font-weight: 600; line-height: 1.5;
  color: var(--c-ink); transition: color .2s ease;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__excerpt {
  margin: 0; font-size: 14px; color: var(--c-muted); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__meta {
  margin-top: auto;
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--c-muted);
  border-top: 1px solid var(--c-line); padding-top: 14px;
}

/* ===== 返回入口 ===== */
.article-footer-nav {
  text-align: center; padding: 40px 0 24px;
}
.article-footer-nav .btn-text {
  font-size: 16px;
  background: var(--c-card-bg);
  border: 1px solid var(--c-line);
  padding: 12px 28px; border-radius: var(--radius-btn);
  box-shadow: var(--shadow-sm);
  min-height: 44px;
}
.article-footer-nav .btn-text:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* ===== 页脚 ===== */
.main-footer {
  background: var(--c-dark);
  color: rgba(255,255,255,.72);
  margin-top: 56px;
  border-top: 2px solid var(--c-primary);
}
.main-footer .container { padding-top: 48px; padding-bottom: 24px; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 48px; margin-bottom: 32px;
}
.footer-brand .nav-brand__text { color: #fff; }
.footer-brand .nav-brand__text .hl { color: #8ED6C6; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin: 16px 0 12px; max-width: 400px; }
.footer-badge {
  display: inline-block; font-size: 12px; color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.06); padding: 4px 14px; border-radius: var(--radius-tag);
}
.footer-col h4 {
  color: #fff; font-size: 16px; font-weight: 600;
  margin: 0 0 16px; padding-bottom: 10px; position: relative;
}
.footer-col h4::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 24px; height: 3px; border-radius: 3px; background: var(--c-primary);
}
.footer-col a {
  display: block; color: rgba(255,255,255,.72);
  font-size: 14px; padding: 5px 0; transition: color .2s ease, padding-left .2s ease;
}
.footer-col a:hover { color: var(--c-primary-soft); padding-left: 6px; }
.contact-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; padding: 6px 0; color: rgba(255,255,255,.72);
}
.contact-item svg { width: 18px; height: 18px; fill: var(--c-primary); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 20px; margin-top: 8px;
  font-size: 12px; color: rgba(255,255,255,.42);
  text-align: center;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-top { gap: 16px; }
  .nav-hot { gap: 12px; }
  .nav-search { width: 180px; }
  .article-header { padding: 32px 32px 28px; }
  .article-body { padding: 40px 40px 48px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-top {
    height: 60px;
    padding: 0 16px;
    gap: 10px;
  }
  .nav-hot { display: none; }
  .nav-search { width: 44px; padding: 0 10px; justify-content: center; }
  .nav-search input { display: none; }
  .nav-search svg { width: 20px; height: 20px; }
  .nav-login { font-size: 13px; padding: 0 14px; height: 44px; }
  .nav-toggle { display: inline-flex; }
  .nav-channels {
    display: none;
    flex-direction: column;
    height: auto;
    align-items: stretch;
    background: var(--c-card-bg);
    border-top: 1px solid var(--c-line);
    padding: 8px 16px 16px;
    box-shadow: 0 12px 24px rgba(16,42,40,.08);
  }
  .main-nav.menu-open .nav-channels { display: flex; }
  .nav-channels a {
    height: 48px; justify-content: flex-start;
    border-radius: 6px; padding: 0 16px;
    font-size: 16px;
  }
  .nav-channels a.active::after { display: none; }
  .nav-channels a.active { background: var(--c-primary-soft); }
  .article-header { padding: 28px 24px 24px; margin-bottom: 20px; }
  .article-header h1 { font-size: 26px; }
  .article-meta { gap: 12px; font-size: 12px; flex-direction: column; align-items: flex-start; }
  .article-body { padding: 28px 22px 36px; font-size: 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { max-width: 100%; }
  .breadcrumb { padding-top: 16px; }
  .breadcrumb .current { max-width: 200px; }
}
@media (max-width: 520px) {
  .nav-brand__text { font-size: 16px; }
  .nav-brand__icon { width: 32px; height: 32px; font-size: 17px; }
  .nav-login { padding: 0 10px; }
  .article-header h1 { font-size: 22px; }
  .article-body { border-radius: 0; border-left: none; border-right: none; }
  .related-section { padding-top: 32px; }
  .related-section .section-title { font-size: 22px; }
}
@media (min-width: 641px) and (max-width: 1024px) {
  .nav-channels { gap: 4px; }
  .nav-channels a { padding: 0 14px; }
}
@media (min-width: 1025px) {
  .nav-top { height: 60px; }
}

/* roulang page: category3 */
:root {
  --c-primary: #0E7A6B;
  --c-primary-deep: #0A5C51;
  --c-primary-soft: #E4F2EF;
  --c-accent: #E8612A;
  --c-accent-soft: #FDE9E0;
  --c-ink: #1F2825;
  --c-muted: #68736F;
  --c-body-bg: #F4F6F5;
  --c-card-bg: #FFFFFF;
  --c-line: #E3E9E6;
  --c-dark: #102A28;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", serif;
  --font-num: "DIN Alternate", "Barlow", "Roboto Condensed", sans-serif;
  --shadow-card: 0 1px 2px rgba(16,42,40,.05), 0 4px 12px rgba(16,42,40,.04);
  --shadow-hover: 0 4px 8px rgba(16,42,40,.06), 0 12px 28px rgba(16,42,40,.08);
  --radius-card: 10px;
  --radius-btn: 6px;
  --radius-tag: 999px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--c-body-bg); color: var(--c-ink); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: var(--c-primary); transition: color .2s; }
a:hover { color: var(--c-primary-deep); }
img { display: block; max-width: 100%; height: auto; background: var(--c-primary-soft); }
button, input { font-family: var(--font-sans); }
ul, ol { list-style: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 按钮系统 ========== */
.btn { display: inline-flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 600; border-radius: var(--radius-btn); padding: 14px 32px; cursor: pointer; transition: all .25s; border: none; text-decoration: none; line-height: 1.4; }
.btn-primary { background: var(--c-accent); color: #fff; box-shadow: 0 6px 16px rgba(232,97,42,.28); }
.btn-primary:hover { background: #D9511F; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(232,97,42,.32); color: #fff; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 10px rgba(232,97,42,.24); }
.btn-outline { background: transparent; border: 2px solid var(--c-primary); color: var(--c-primary); }
.btn-outline:hover { background: var(--c-primary-soft); color: var(--c-primary-deep); }

/* ========== 导航 ========== */
.main-nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); box-shadow: 0 2px 12px rgba(16,42,40,.08); }
.nav-top { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-brand__icon { width: 38px; height: 38px; background: var(--c-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; flex-shrink: 0; }
.nav-brand__text { font-size: 20px; font-weight: 700; color: var(--c-ink); white-space: nowrap; }
.nav-brand__text .hl { color: var(--c-primary); }
.nav-hot { flex: 1; display: flex; align-items: center; justify-content: center; gap: 20px; min-width: 0; overflow: hidden; }
.nav-hot a { font-size: 13px; color: var(--c-muted); white-space: nowrap; }
.nav-hot a:hover { color: var(--c-primary); }
.nav-hot .hash { color: var(--c-primary); margin-right: 2px; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-search { position: relative; }
.nav-search svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; fill: var(--c-muted); pointer-events: none; }
.nav-search input { width: 200px; height: 36px; border: 1px solid var(--c-line); border-radius: 999px; padding: 0 16px 0 36px; font-size: 13px; background: #f8faf9; outline: none; transition: border-color .2s, box-shadow .2s; }
.nav-search input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(14,122,107,.12); }
.nav-search input::placeholder { color: var(--c-muted); }
.nav-login { height: 36px; background: var(--c-accent); color: #fff; border: none; border-radius: var(--radius-btn); padding: 0 20px; font-size: 14px; font-weight: 600; cursor: pointer; transition: background .2s, transform .15s, box-shadow .2s; box-shadow: 0 4px 12px rgba(232,97,42,.2); }
.nav-login:hover { background: #D9511F; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(232,97,42,.28); }
.nav-login:active { transform: translateY(0); }
.nav-toggle { display: none; width: 40px; height: 40px; background: #fff; border: 1px solid var(--c-line); border-radius: 6px; align-items: center; justify-content: center; cursor: pointer; padding: 0; }
.nav-toggle svg { width: 20px; height: 20px; fill: var(--c-ink); }
.nav-channels { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 48px; display: flex; align-items: center; gap: 32px; border-top: 1px solid var(--c-line); }
.nav-channels a { font-size: 15px; color: var(--c-muted); padding: 12px 2px; position: relative; white-space: nowrap; }
.nav-channels a:hover { color: var(--c-primary); }
.nav-channels a.active { color: var(--c-primary); font-weight: 600; }
.nav-channels a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--c-primary); border-radius: 2px; }

/* ========== 页面 H1 区 ========== */
.page-hero { background: linear-gradient(90deg, rgba(16,42,40,.94), rgba(16,42,40,.72) 55%, rgba(16,42,40,.52)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; color: #fff; padding: 88px 0 72px; position: relative; }
.page-hero__inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 24px; }
.page-hero__bar { width: 4px; height: 56px; background: var(--c-primary); border-radius: 2px; flex-shrink: 0; }
.page-hero__content h1 { font-size: 36px; font-weight: 700; line-height: 1.3; }
.page-hero__content p { font-size: 15px; color: rgba(255,255,255,.85); margin-top: 12px; max-width: 640px; }

/* ========== 横幅 ========== */
.banner { margin: 48px auto 0; max-width: 1200px; padding: 0 24px; }
.banner__inner { border-radius: 12px; overflow: hidden; position: relative; min-height: 260px; display: flex; align-items: stretch; }
.banner__bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat; z-index: 0; }
.banner__overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,42,40,.88), rgba(232,97,42,.28) 90%); z-index: 1; }
.banner__content { position: relative; z-index: 2; padding: 48px; color: #fff; display: flex; flex-direction: column; justify-content: center; }
.banner__content h2 { font-size: 28px; font-weight: 700; margin-bottom: 10px; }
.banner__content p { font-size: 14px; color: rgba(255,255,255,.85); max-width: 480px; line-height: 1.8; }

/* ========== 筛选标签 ========== */
.filter { margin: 40px auto 0; max-width: 1200px; padding: 0 24px; }
.filter__inner { display: flex; gap: 12px; flex-wrap: wrap; }
.filter__tag { height: 36px; padding: 0 22px; border: 1px solid var(--c-line); border-radius: var(--radius-tag); background: #fff; font-size: 14px; color: var(--c-muted); cursor: pointer; transition: all .2s; }
.filter__tag:hover { border-color: var(--c-primary); color: var(--c-primary); }
.filter__tag.active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); font-weight: 600; }

/* ========== 板块标题 ========== */
.section-head { margin-bottom: 36px; }
.section-head__bar { width: 32px; height: 4px; background: var(--c-primary); border-radius: 2px; margin-bottom: 12px; }
.section-head h2 { font-size: 28px; font-weight: 700; color: var(--c-ink); }
.section-head p { font-size: 14px; color: var(--c-muted); margin-top: 8px; }

/* ========== 优惠卡片 ========== */
.promo-section { margin: 56px auto; max-width: 1200px; padding: 0 24px; }
.promo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.promo-card { background: var(--c-card-bg); border-radius: var(--radius-card); padding: 28px 24px; box-shadow: var(--shadow-card); position: relative; border: 1px solid var(--c-line); transition: transform .25s, box-shadow .25s; overflow: hidden; }
.promo-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--c-primary); opacity: 0; transition: opacity .25s; }
.promo-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.promo-card:hover::before { opacity: 1; }
.promo-card__badge { position: absolute; top: 18px; right: 18px; padding: 4px 14px; border-radius: var(--radius-tag); font-size: 12px; font-weight: 600; line-height: 1.5; }
.badge-new { background: var(--c-primary-soft); color: var(--c-primary); }
.badge-limit { background: var(--c-accent-soft); color: var(--c-accent); }
.badge-hot { background: #FDF1D8; color: #D9A014; }
.badge-daily { background: var(--c-primary-soft); color: var(--c-primary-deep); }
.promo-card__label { font-size: 15px; font-weight: 600; color: var(--c-ink); margin-bottom: 2px; }
.promo-card__title { font-size: 13px; color: var(--c-muted); margin-bottom: 16px; }
.promo-card__amount { font-family: var(--font-num); font-size: 42px; font-weight: 700; color: var(--c-accent); line-height: 1.2; margin-bottom: 12px; letter-spacing: -1px; }
.promo-card__amount small { font-size: 18px; margin-left: 2px; letter-spacing: 0; }
.promo-card__desc { font-size: 14px; color: var(--c-muted); line-height: 1.8; }
.promo-card__link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--c-primary); }
.promo-card__link .arrow { transition: transform .2s; }
.promo-card__link:hover .arrow { transform: translateX(4px); }

/* ========== 流程步骤 ========== */
.steps-section { background: var(--c-dark); padding: 72px 0; margin-top: 56px; }
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255,255,255,.6); }
.steps-section .section-head__bar { background: var(--c-accent); }
.steps-section .container:last-of-type { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.step-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-card); padding: 28px 22px; transition: background .2s, transform .2s; }
.step-card:hover { background: rgba(255,255,255,.09); transform: translateY(-2px); }
.step-card__num { width: 44px; height: 44px; border-radius: 50%; background: var(--c-primary); color: #fff; font-family: var(--font-num); font-weight: 700; font-size: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.step-card h3 { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step-card p { color: rgba(255,255,255,.65); font-size: 14px; line-height: 1.75; }

/* ========== 适用场景 ========== */
.scenes-section { margin: 56px auto; max-width: 1200px; padding: 0 24px; }
.scene-list { display: flex; flex-direction: column; gap: 16px; }
.scene-item { display: flex; gap: 20px; align-items: center; background: var(--c-card-bg); border: 1px solid var(--c-line); border-radius: var(--radius-card); padding: 16px; transition: background .2s, box-shadow .2s; }
.scene-item:hover { background: var(--c-primary-soft); box-shadow: 0 2px 8px rgba(16,42,40,.06); }
.scene-item__thumb { width: 130px; height: 86px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.scene-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.scene-item__body h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; color: var(--c-ink); }
.scene-item__body p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* ========== FAQ ========== */
.faq-section { max-width: 1200px; margin: 56px auto; padding: 0 24px; }
.faq-list { max-width: 800px; }
.faq-item { border: 1px solid var(--c-line); border-radius: 8px; background: var(--c-card-bg); margin-bottom: 12px; overflow: hidden; transition: border-color .2s; }
.faq-item.open { border-color: var(--c-primary); background: var(--c-primary-soft); }
.faq-item__question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; font-size: 15px; font-weight: 600; color: var(--c-ink); background: none; border: none; text-align: left; cursor: pointer; gap: 16px; }
.faq-item__question:hover { color: var(--c-primary); }
.faq-item__icon { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--c-primary); color: var(--c-primary); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; transition: transform .3s, background .2s; flex-shrink: 0; line-height: 1; }
.faq-item.open .faq-item__icon { transform: rotate(45deg); background: var(--c-primary); color: #fff; }
.faq-item__answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; padding: 0 20px; }
.faq-item.open .faq-item__answer { max-height: 300px; padding: 4px 20px 18px; }
.faq-item__answer p { font-size: 14px; color: var(--c-muted); line-height: 1.8; }

/* ========== CTA 区 ========== */
.cta-box { max-width: 1200px; margin: 56px auto 72px; padding: 0 24px; }
.cta-box__inner { background: var(--c-primary-soft); border: 1px solid var(--c-line); border-radius: 12px; padding: 48px 32px; text-align: center; position: relative; overflow: hidden; }
.cta-box__inner::before { content: ''; position: absolute; width: 180px; height: 180px; border-radius: 50%; border: 24px solid rgba(14,122,107,.06); top: -80px; right: -60px; }
.cta-box__inner::after { content: ''; position: absolute; width: 120px; height: 120px; border-radius: 50%; border: 18px solid rgba(232,97,42,.06); bottom: -50px; left: -40px; }
.cta-box h2 { font-size: 26px; font-weight: 700; position: relative; z-index: 1; }
.cta-box p { font-size: 14px; color: var(--c-muted); margin-top: 8px; margin-bottom: 28px; position: relative; z-index: 1; }

/* ========== 页脚 ========== */
.main-footer { background: var(--c-dark); color: rgba(255,255,255,.75); padding: 64px 0 0; }
.main-footer .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .nav-brand__text { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.8; margin-top: 16px; }
.footer-badge { display: inline-block; font-size: 12px; color: rgba(255,255,255,.4); border: 1px solid rgba(255,255,255,.2); border-radius: 4px; padding: 4px 12px; margin-top: 16px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,.6); padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--c-primary-soft); }
.contact-item { display: flex; align-items: center; gap: 10px; font-size: 14px; padding: 5px 0; color: rgba(255,255,255,.6); }
.contact-item svg { width: 16px; height: 16px; fill: rgba(255,255,255,.45); flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: 12px; color: rgba(255,255,255,.4); margin-top: 8px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .nav-hot { gap: 12px; }
  .nav-hot a { font-size: 12px; }
  .promo-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-hot { display: none; }
  .nav-search input { width: 130px; }
  .nav-channels { overflow-x: auto; -webkit-overflow-scrolling: touch; gap: 24px; }
  .nav-channels::-webkit-scrollbar { display: none; }
  .nav-channels.nav-open { position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; height: auto; padding: 16px 24px; gap: 2px; box-shadow: 0 12px 24px rgba(16,42,40,.12); z-index: 99; max-width: none; border-top: none; overflow-x: visible; }
  .nav-channels.nav-open a { width: 100%; padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--c-line); }
  .nav-channels.nav-open a.active::after { display: none; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero__content h1 { font-size: 30px; }
  .page-hero__bar { height: 44px; }
  .banner__content { padding: 32px 24px; }
  .banner__content h2 { font-size: 22px; }
  .promo-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .scene-item { flex-direction: column; align-items: flex-start; }
  .scene-item__thumb { width: 100%; height: 160px; }
  .cta-box__inner { padding: 36px 20px; }
}

@media (max-width: 520px) {
  .nav-top { padding: 0 16px; gap: 12px; }
  .nav-brand__text { font-size: 17px; }
  .nav-brand__icon { width: 34px; height: 34px; font-size: 16px; }
  .nav-search { display: none; }
  .nav-login { padding: 0 14px; font-size: 13px; }
  .nav-toggle { display: flex; }
  .nav-channels { padding: 0 16px; }
  .page-hero__inner { padding: 0 16px; gap: 16px; }
  .page-hero__content h1 { font-size: 26px; }
  .page-hero__content p { font-size: 14px; }
  .banner { padding: 0 16px; }
  .filter { padding: 0 16px; }
  .filter__tag { padding: 0 16px; height: 34px; font-size: 13px; }
  .promo-section { padding: 0 16px; margin: 40px auto; }
  .section-head h2 { font-size: 24px; }
  .scenes-section { padding: 0 16px; }
  .faq-section { padding: 0 16px; }
  .cta-box { padding: 0 16px; }
  .cta-box h2 { font-size: 22px; }
  .main-footer .container { padding: 0 16px; }
}

/* roulang page: category2 */
:root {
  --c-primary: #0E7A6B;
  --c-primary-deep: #0A5C51;
  --c-primary-soft: #E4F2EF;
  --c-primary-light: #4FD1C0;
  --c-accent: #E8612A;
  --c-accent-soft: #FDE9E0;
  --c-ink: #1F2825;
  --c-muted: #68736F;
  --c-body-bg: #F4F6F5;
  --c-card-bg: #FFFFFF;
  --c-line: #E3E9E6;
  --c-dark: #102A28;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Barlow", "Roboto Condensed", sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(16,42,40,.05), 0 4px 12px rgba(16,42,40,.04);
  --shadow-md: 0 4px 8px rgba(16,42,40,.06), 0 12px 28px rgba(16,42,40,.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--c-body-bg);
  color: var(--c-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; }
button, input { font-family: inherit; font-size: inherit; }

:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  box-shadow: 0 2px 12px rgba(16,42,40,.08);
}

.nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 44px;
  padding: 0 24px;
  border-bottom: 1px solid var(--c-line);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-ink);
  white-space: nowrap;
}

.nav-brand__icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--c-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.nav-brand__text .hl { color: var(--c-primary); }

.nav-hot {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  overflow: hidden;
  white-space: nowrap;
}

.nav-hot a {
  color: var(--c-muted);
  font-size: 13px;
  transition: color .2s;
}

.nav-hot a:hover { color: var(--c-primary); }
.nav-hot .hash { color: var(--c-primary); margin-right: 1px; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 220px;
  background: var(--c-body-bg);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: 6px 14px;
  transition: border-color .2s, box-shadow .2s;
}

.nav-search:focus-within {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(14,122,107,.12);
}

.nav-search svg {
  width: 15px;
  height: 15px;
  fill: var(--c-muted);
  flex: none;
}

.nav-search input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  width: 100%;
  color: var(--c-ink);
}

.nav-login {
  height: 32px;
  padding: 0 18px;
  border-radius: 999px;
  border: none;
  background: var(--c-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .2s;
}

.nav-login:hover { background: var(--c-primary-deep); }
.nav-login:active { transform: scale(.97); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 6px;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}

.nav-toggle:hover { background: var(--c-primary-soft); }
.nav-toggle svg { width: 22px; height: 22px; fill: var(--c-ink); }

.nav-channels {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 48px;
}

.nav-channels a {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s;
}

.nav-channels a:hover { color: var(--c-primary); }

.nav-channels a.active {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
}

/* ===== Hero 分类横幅 ===== */
.cat-hero {
  position: relative;
  background: var(--c-dark);
  padding: 76px 0;
  overflow: hidden;
}

.cat-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.cat-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16,42,40,.94), rgba(16,42,40,.58) 55%, rgba(16,42,40,.34));
}

.cat-hero .container { position: relative; z-index: 1; }

.cat-hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--c-accent);
  margin-bottom: 12px;
}

.cat-hero h1 {
  font-size: 40px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  position: relative;
  padding-left: 18px;
  line-height: 1.2;
}

.cat-hero h1::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 4px;
  background: var(--c-primary-light);
}

.cat-hero__desc {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255,255,255,.85);
  max-width: 580px;
  margin-bottom: 20px;
}

.cat-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--c-primary-soft);
  color: var(--c-primary-deep);
}

.tag-light {
  background: rgba(255,255,255,.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
}

.tag-accent { background: var(--c-accent); color: #fff; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s;
  line-height: 1;
  text-decoration: none;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
  box-shadow: 0 6px 16px rgba(232,97,42,.28);
}

.btn-primary:hover {
  background: #d9511f;
  border-color: #d9511f;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232,97,42,.32);
}

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

.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}

.btn-outline:hover { background: var(--c-primary-soft); }

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}

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

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-primary);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: color .2s;
}

.btn-link .arrow { transition: transform .2s; }

.btn-link:hover { color: var(--c-primary-deep); }
.btn-link:hover .arrow { transform: translateX(4px); }

/* ===== 板块通用 ===== */
.section { padding: 76px 0; }

.section-head {
  margin-bottom: 40px;
}

.section-line {
  display: block;
  width: 32px;
  height: 4px;
  border-radius: 4px;
  background: var(--c-primary);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.section-head p {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0;
  max-width: 640px;
}

/* ===== 核心优势 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}

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

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 0;
}

/* ===== 步骤流程 ===== */
.steps-section {
  background: var(--c-body-bg);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}

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

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 8px;
}

.step-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0;
}

/* ===== 评测卡片 ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.filter-btn {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
  cursor: pointer;
  transition: all .2s;
}

.filter-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.filter-btn.active {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-line);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.review-card__cover {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--c-primary-soft);
  overflow: hidden;
}

.review-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.review-card:hover .review-card__cover img { transform: scale(1.03); }

.review-card__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--c-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
}

.review-card__score {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(16,42,40,.82);
  color: #fff;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
}

.review-card__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.review-card__body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  margin: 0 0 10px;
}

.review-card__body p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
  margin: 0 0 16px;
  flex: 1;
}

.review-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.review-card__meta {
  font-size: 12px;
  color: var(--c-muted);
}

/* ===== 数据面板 ===== */
.data-section {
  background: var(--c-dark);
  padding: 72px 0;
}

.data-panel {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}

.data-panel__left h2 {
  color: #fff;
  font-size: 28px;
  margin-bottom: 14px;
  position: relative;
  padding-left: 18px;
}

.data-panel__left h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--c-primary-light);
}

.data-panel__left > p {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 480px;
}

.data-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.data-stat {
  padding: 18px;
  background: rgba(255,255,255,.06);
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.1);
}

.data-stat__num {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: .5px;
}

.data-stat__label {
  font-size: 12px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
}

.data-panel__right {
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid rgba(255,255,255,.1);
}

.data-panel__right h3 {
  color: #fff;
  font-size: 18px;
  margin-bottom: 20px;
}

.progress-item { margin-bottom: 18px; }

.progress-item:last-child { margin-bottom: 0; }

.progress-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,.85);
  margin-bottom: 8px;
}

.progress-value {
  font-family: var(--font-num);
  color: var(--c-accent);
  font-weight: 600;
}

.progress-bar {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,.15);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--c-accent);
}

.progress-fill.primary { background: var(--c-primary-light); }

.data-countdown {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.1);
}

.data-countdown__label {
  font-size: 12px;
  color: rgba(255,255,255,.7);
  margin-bottom: 6px;
}

.data-countdown__time {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
}

/* ===== 图文列表 ===== */
.media-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 920px;
  margin: 0 auto;
}

.media-item {
  display: flex;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 12px;
  transition: background .2s, box-shadow .2s;
}

.media-item:hover {
  background: var(--c-primary-soft);
  box-shadow: var(--shadow-sm);
}

.media-item__thumb {
  width: 120px;
  height: 80px;
  border-radius: 8px;
  object-fit: cover;
  flex: none;
  background: var(--c-primary-soft);
}

.media-item__body { flex: 1; min-width: 0; }

.media-item__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 6px;
}

.media-item__desc {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-item__meta {
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 6px;
  display: flex;
  gap: 12px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .2s, border-color .2s;
}

.faq-item.open {
  box-shadow: var(--shadow-sm);
  border-color: var(--c-primary);
}

.faq-item__q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  text-align: left;
  transition: color .2s;
}

.faq-item__q:hover { color: var(--c-primary); }

.faq-icon {
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
  transition: transform .3s, background .3s, color .3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--c-primary);
  color: #fff;
}

.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  padding: 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

.faq-item.open .faq-item__a {
  max-height: 400px;
  padding: 0 20px 18px;
}

/* ===== CTA ===== */
.cta-section { padding: 72px 0; }

.cta-inner {
  background: var(--c-dark);
  border-radius: 16px;
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-inner::before,
.cta-inner::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.08);
  width: 200px;
  height: 200px;
}

.cta-inner::before { top: -60px; left: -60px; }
.cta-inner::after { bottom: -80px; right: -40px; width: 260px; height: 260px; }

.cta-title {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-desc {
  color: rgba(255,255,255,.7);
  font-size: 15px;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ===== 页脚 ===== */
.main-footer {
  background: var(--c-dark);
  color: rgba(255,255,255,.7);
  padding-top: 56px;
  border-top: 2px solid var(--c-primary);
  font-size: 13px;
  line-height: 1.8;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .nav-brand {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  color: rgba(255,255,255,.65);
  font-size: 13px;
  line-height: 1.9;
  margin-bottom: 14px;
  max-width: 360px;
}

.footer-badge {
  display: inline-block;
  font-size: 12px;
  color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.06);
  padding: 4px 12px;
  border-radius: 999px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-col a {
  display: inline-block;
  color: rgba(255,255,255,.65);
  padding: 4px 0;
  font-size: 13px;
  transition: color .2s;
}

.footer-col a:hover { color: var(--c-primary-soft); }

.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  color: rgba(255,255,255,.65);
}

.contact-item svg {
  width: 16px;
  height: 16px;
  fill: var(--c-primary);
  flex: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 16px 0;
  font-size: 12px;
  color: rgba(255,255,255,.45);
  text-align: center;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-hot { display: none; }
  .nav-search { width: 160px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .data-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 56px 0; }
  .cat-hero { padding: 60px 0; }
}

@media (max-width: 640px) {
  .nav-hot { display: none; }
  .nav-search { display: none; }
  .nav-login { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-top { height: 44px; }
  .nav-channels {
    position: fixed;
    top: 44px;
    right: -100%;
    width: 280px;
    max-width: 80vw;
    height: calc(100vh - 44px);
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    box-shadow: -4px 0 20px rgba(16,42,40,.12);
    transition: right .3s ease;
    z-index: 99;
    padding: 12px;
    display: flex;
    margin: 0;
    gap: 4px;
  }
  .nav-channels.open { right: 0; }
  .nav-channels a {
    height: 44px;
    padding: 0 12px;
    border-bottom: none;
    border-radius: 8px;
    border-left: 3px solid transparent;
  }
  .nav-channels a.active {
    background: var(--c-primary-soft);
    color: var(--c-primary);
    border-left-color: var(--c-primary);
  }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .data-stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .cat-hero { padding: 48px 0; }
  .cat-hero h1 { font-size: 32px; }
  .cta-inner { padding: 40px 24px; }
  .cta-title { font-size: 24px; }
  .media-item { flex-direction: column; align-items: flex-start; }
  .media-item__thumb { width: 100%; height: auto; aspect-ratio: 16 / 9; }
  .media-item__desc { white-space: normal; }
}