/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --bg-light: #F5F1EA;
  --bg-dark: #16101D;
  --bg-dark-2: #1D1426;
  --primary: #E0446A;
  --primary-deep: #C0285B;
  --gradient-purple: #7B3FA0;
  --secondary: #E4B566;
  --success: #3BA272;
  --warning: #E08A2E;
  --error: #C93A45;
  --text-dark-bg: #F8F4EE;
  --text-dark-sub: rgba(248,244,238,.72);
  --text-light: #241D2B;
  --text-light-sub: #6B6375;
  --gradient-main: linear-gradient(135deg, #E0446A 0%, #7B3FA0 100%);
  --gradient-gold: linear-gradient(135deg, #E4B566, #F6DCA8);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 12px 32px rgba(22,16,29,.08);
  --shadow-card-hover: 0 20px 40px rgba(22,16,29,.14);
  --font-main: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-num: Arial, Helvetica, sans-serif;
  --container: 1200px;
  --spacer: 120px;
  --spacer-mobile: 64px;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.8;
  letter-spacing: .02em;
  color: var(--text-light);
  background: var(--bg-light);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; border: none; outline: none; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

::selection { background: rgba(224,68,106,.25); }

/* 焦点可访问性 */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(22,16,29,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228,181,102,.25);
}
.nav-inner {
  max-width: var(--container);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo svg {
  width: 32px;
  height: 32px;
  stroke: var(--secondary);
  fill: none;
  stroke-width: 1.6;
}
.nav-logo-text {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}
.nav-center {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}
.nav-link {
  color: rgba(248,244,238,.7);
  font-size: .92rem;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color .25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: #fff;
}
.nav-link.active {
  color: #fff;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -2px;
  width: 24px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.1);
  border-radius: 999px;
  padding: 0 16px;
  height: 40px;
  transition: background .3s ease;
}
.nav-search:focus-within {
  background: #fff;
}
.nav-search:focus-within .search-input { color: var(--text-light); }
.nav-search:focus-within .search-icon { color: var(--text-light-sub); }
.search-icon { color: rgba(248,244,238,.6); font-size: .8rem; transition: color .3s; }
.search-input {
  background: transparent;
  color: var(--text-dark-bg);
  font-size: .85rem;
  width: 140px;
  transition: color .3s;
}
.search-input::placeholder { color: rgba(248,244,238,.45); }
.btn-login {
  color: rgba(248,244,238,.8);
  font-size: .88rem;
  padding: 8px 18px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  transition: all .25s ease;
  background: transparent;
  white-space: nowrap;
}
.btn-login:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  padding: 11px 26px;
  border-radius: 999px;
  transition: filter .25s ease, transform .25s ease, box-shadow .25s ease;
  box-shadow: 0 6px 20px rgba(224,68,106,.3);
  white-space: nowrap;
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(224,68,106,.4);
}
.btn-primary:active {
  transform: translateY(0);
  filter: brightness(.96);
}
.btn-primary:disabled {
  background: #4A4351;
  color: rgba(255,255,255,.5);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}
/* 汉堡菜单 */
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-dark-bg);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark-2);
  z-index: 99;
  padding: 32px 24px;
  overflow-y: auto;
}
.mobile-nav.show { display: block; }
.mobile-nav .nav-link {
  display: block;
  font-size: 1.1rem;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-nav .nav-link.active { color: var(--secondary); }
.mobile-nav .btn-login { display: inline-block; margin-top: 20px; }
.mobile-nav .btn-primary { width: 100%; margin-top: 14px; text-align: center; }
.mobile-nav .nav-search { width: 100%; background: rgba(255,255,255,.1); margin-top: 20px; }
.mobile-nav .search-input { flex: 1; }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, rgba(22,16,29,.92) 20%, rgba(22,16,29,.55) 70%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: var(--text-dark-bg);
  padding: 80px 0 120px;
}
.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}
.hero-content h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.01em;
  margin-bottom: 20px;
}
.hero-content h1 .highlight {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-dark-sub);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.35);
  color: var(--text-dark-bg);
  font-size: .9rem;
  font-weight: 500;
  padding: 12px 26px;
  border-radius: 999px;
  transition: all .25s ease;
}
.btn-ghost:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}
.btn-ghost .arrow-down { display: inline-block; margin-left: 4px; transition: transform .25s; }
.btn-ghost:hover .arrow-down { transform: translateY(3px); }
.hero-badges {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.data-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: transform .3s ease, border-color .3s ease;
}
.data-badge:hover {
  transform: translateY(-4px);
  border-color: rgba(228,181,102,.4);
}
.data-badge-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.data-badge-num {
  font-family: var(--font-num);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--secondary);
  line-height: 1.1;
}
.data-badge-label {
  font-size: .78rem;
  color: rgba(248,244,238,.6);
  letter-spacing: .08em;
}
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.7);
  transition: all .3s ease;
  animation: float 2s ease-in-out infinite;
}
.hero-scroll:hover { border-color: var(--secondary); color: var(--secondary); }
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========== 通用板块 ========== */
.section { padding: var(--spacer) 0; }
.section-light { background: var(--bg-light); color: var(--text-light); }
.section-dark { background: var(--bg-dark); color: var(--text-dark-bg); }
.section-dark-sub { background: var(--bg-dark-2); color: var(--text-dark-bg); }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.2;
}
.section-head .section-desc {
  color: var(--text-light-sub);
  font-size: .95rem;
  margin-top: 8px;
}
.section-dark .section-head .section-desc { color: var(--text-dark-sub); }
.link-more {
  color: var(--primary);
  font-size: .9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  transition: gap .25s ease;
  white-space: nowrap;
}
.link-more:hover { gap: 12px; }
.section-dark .link-more { color: var(--secondary); }
.link-more .arrow { transition: transform .25s ease; }
.link-more:hover .arrow { transform: translateX(4px); }

/* ========== 玩法介绍 ========== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.step-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
  overflow: hidden;
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}
.step-num {
  font-family: var(--font-num);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(224,68,106,.15);
  line-height: 1;
  position: absolute;
  top: 20px;
  right: 24px;
}
.step-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.step-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.step-card p {
  font-size: .92rem;
  color: var(--text-light-sub);
  line-height: 1.7;
}
.steps-grid::before {
  content: "";
  position: absolute;
  top: 60px;
  left: 16.66%;
  right: 16.66%;
  border-top: 2px dashed rgba(224,68,106,.25);
  z-index: 0;
}
.step-card { z-index: 1; }

/* ========== 奖励预览 ========== */
.rewards-section {
  background: linear-gradient(rgba(22,16,29,.85), rgba(22,16,29,.92)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.rewards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.reward-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
  position: relative;
}
.reward-card:hover {
  transform: translateY(-6px);
  border-color: rgba(228,181,102,.4);
}
.reward-card-wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
}
.reward-cover {
  position: relative;
  overflow: hidden;
  min-height: 180px;
}
.reward-card-wide .reward-cover { min-height: 100%; height: 100%; }
.reward-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.reward-card:hover .reward-cover img { transform: scale(1.03); }
.reward-card-wide .reward-cover { border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.reward-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.reward-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag-pill {
  background: rgba(228,181,102,.15);
  border: 1px solid rgba(228,181,102,.3);
  color: var(--secondary);
  font-size: .78rem;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: .04em;
}
.countdown-badge {
  background: rgba(224,68,106,.15);
  color: var(--primary);
  font-size: .78rem;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid rgba(224,68,106,.3);
}
.reward-info h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-dark-bg);
}
.reward-info p {
  font-size: .9rem;
  color: var(--text-dark-sub);
  line-height: 1.6;
  flex: 1;
}
.reward-note {
  font-size: .75rem;
  color: rgba(248,244,238,.4);
  line-height: 1.5;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,.06);
}
.reward-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary);
  font-size: .88rem;
  font-weight: 600;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .3s ease, transform .3s ease;
}
.reward-card:hover .reward-link {
  opacity: 1;
  transform: translateX(0);
}
.reward-card:hover .reward-link .arrow { transform: translateX(4px); }

/* ========== 任务进度 ========== */
.tasks-wrap {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 48px;
  align-items: start;
}
.tasks-left h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.tasks-left p {
  color: var(--text-light-sub);
  font-size: .95rem;
  margin-bottom: 24px;
}
.progress-summary {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
}
.progress-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.progress-top span:first-child {
  font-size: .9rem;
  color: var(--text-light-sub);
}
.progress-percent {
  font-family: var(--font-num);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}
.progress-bar {
  height: 10px;
  background: #EADFD0;
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 999px;
  width: 68%;
  position: relative;
}
.progress-fill::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 20px;
  background: rgba(255,255,255,.3);
  border-radius: 999px;
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { opacity: .4; } 50% { opacity: .9; }
}
.task-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.task-item {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease;
}
.task-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-card-hover);
}
.task-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.task-status-dot.pending { background: #8A8393; box-shadow: 0 0 8px rgba(138,131,147,.6); }
.task-status-dot.running { background: var(--secondary); box-shadow: 0 0 8px rgba(228,181,102,.6); }
.task-status-dot.done { background: var(--success); box-shadow: 0 0 8px rgba(59,162,114,.6); }
.task-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.task-info .task-name {
  font-weight: 600;
  font-size: 1rem;
}
.task-info .task-require {
  font-size: .82rem;
  color: var(--text-light-sub);
}
.task-btn {
  flex-shrink: 0;
  font-size: .82rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 999px;
  transition: all .25s ease;
}
.task-btn.running {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 14px rgba(224,68,106,.3);
}
.task-btn.running:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}
.task-btn.done {
  background: transparent;
  border: 1px solid rgba(59,162,114,.4);
  color: var(--success);
  cursor: default;
}
.task-btn.pending {
  background: #F0EBE4;
  color: var(--text-light-sub);
}
.task-btn.pending:hover { background: #E6DFD6; }

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(rgba(22,16,29,.7), rgba(22,16,29,.7)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--gradient-main);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
}
.cta-card::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
}
.cta-card h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-card p {
  font-size: .98rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cta-card .btn-white {
  background: #fff;
  color: var(--primary-deep);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 40px;
  border-radius: 999px;
  position: relative;
  z-index: 1;
  transition: transform .25s ease, box-shadow .25s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.cta-card .btn-white:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(0,0,0,.3);
}
.cta-card .btn-white:active {
  transform: translateY(0) scale(.98);
}

/* ========== 资讯列表 ========== */
.news-section { background: var(--bg-light); }
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.news-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.news-item-wide {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  padding: 0;
  overflow: hidden;
}
.news-item-wide .news-cover {
  position: relative;
  overflow: hidden;
  min-height: 180px;
}
.news-item-wide .news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.news-item-wide:hover .news-cover img { transform: scale(1.03); }
.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.news-cat {
  display: inline-block;
  background: rgba(224,68,106,.1);
  color: var(--primary);
  font-size: .75rem;
  padding: 4px 14px;
  border-radius: 999px;
  width: fit-content;
  letter-spacing: .06em;
  font-weight: 500;
}
.news-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color .25s ease;
}
.news-body h3:hover { color: var(--primary); }
.news-body p {
  font-size: .88rem;
  color: var(--text-light-sub);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-body time {
  font-size: .78rem;
  color: var(--text-light-sub);
  font-family: var(--font-num);
}
.news-item-time {
  margin-left: auto;
  font-size: .8rem;
  color: var(--text-light-sub);
  font-family: var(--font-num);
  white-space: nowrap;
}
.news-item .news-cat { flex-shrink: 0; }
.news-item-text { flex: 1; min-width: 0; }
.news-item-text h3 {
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-item-text p {
  font-size: .85rem;
  color: var(--text-light-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-arrow {
  color: var(--primary);
  font-size: 1.1rem;
  transition: transform .25s ease;
  flex-shrink: 0;
}
.news-item:hover .news-arrow { transform: translateX(6px); }
.news-empty {
  border: 2px dashed #C9BEB0;
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-light-sub);
  background: #fff;
}
.news-empty-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  color: #C9BEB0;
}
.news-empty p { margin-bottom: 16px; }
.btn-refresh {
  background: var(--bg-light);
  border: 1px solid #C9BEB0;
  color: var(--text-light);
  padding: 10px 28px;
  border-radius: 999px;
  font-size: .88rem;
  transition: all .25s ease;
}
.btn-refresh:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-refresh:active { transform: scale(.96); }

/* ========== FAQ ========== */
.faq-section { background: var(--bg-light); }
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid rgba(22,16,29,.08);
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item:hover {
  border-left: 2px solid var(--secondary);
  box-shadow: var(--shadow-card);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  list-style: none;
  transition: color .25s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item[open] summary { color: var(--primary); }
.faq-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid rgba(224,68,106,.3);
  background: rgba(224,68,106,.06);
  color: var(--primary);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s ease, background .3s ease;
}
.faq-item[open] .faq-toggle {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.faq-answer {
  padding: 0 24px 20px;
  font-size: .92rem;
  color: var(--text-light-sub);
  line-height: 1.8;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #100B16;
  color: var(--text-dark-sub);
  padding-top: 64px;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-gold);
}
.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .footer-logo svg {
  width: 28px;
  height: 28px;
  stroke: var(--secondary);
  fill: none;
  stroke-width: 1.6;
}
.footer-brand .footer-logo span {
  color: var(--text-dark-bg);
  font-size: 1.1rem;
  font-weight: 700;
}
.footer-brand p {
  font-size: .88rem;
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  color: var(--text-dark-bg);
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: .88rem;
  color: var(--text-dark-sub);
  transition: color .25s ease;
}
.footer-col a:hover { color: var(--secondary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 24px;
  text-align: center;
  font-size: .82rem;
  color: rgba(248,244,238,.4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  :root { --spacer: 80px; }
  .hero-inner { grid-template-columns: 1fr 1fr; gap: 40px; }
  .tasks-wrap { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-center { gap: 16px; }
  .nav-search { width: auto; }
  .search-input { width: 90px; }
}
@media (max-width: 768px) {
  :root { --spacer: var(--spacer-mobile); }
  .site-header { height: 64px; }
  .nav-center, .nav-right .nav-search, .nav-right .btn-login { display: none; }
  .menu-toggle { display: flex; }
  .nav-right .btn-primary { display: none; }
  .mobile-nav.show { display: block; }
  .hero { min-height: auto; padding: 64px 0 100px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding-top: 16px; }
  .hero-content h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); }
  .hero-badges { flex-direction: row; flex-wrap: wrap; }
  .data-badge { flex: 1 1 calc(50% - 8px); min-width: 140px; padding: 14px 16px; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .steps-grid::before { display: none; }
  .rewards-grid { grid-template-columns: 1fr; }
  .reward-card-wide { grid-template-columns: 1fr; }
  .reward-card-wide .reward-cover { border-radius: var(--radius-lg) var(--radius-lg) 0 0; min-height: 160px; }
  .reward-link { opacity: 1; transform: none; }
  .news-item-wide { grid-template-columns: 1fr; }
  .news-item-wide .news-cover { min-height: 160px; border-radius: var(--radius-md) var(--radius-md) 0 0; }
  .news-item { flex-wrap: wrap; }
  .news-item-time { margin-left: 0; }
  .cta-card { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .menu-toggle { display: flex; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav-inner { padding: 0 16px; }
  .hero { padding: 48px 0 80px; }
  .data-badge { flex-basis: 100%; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .task-item { flex-wrap: wrap; gap: 12px; }
  .task-btn { width: 100%; text-align: center; }
  .news-item { padding: 16px 18px; }
  .news-item-text p { display: none; }
}
@media (max-width: 360px) {
  .hero-content h1 { font-size: 1.7rem; }
  .btn-primary, .btn-ghost { width: 100%; text-align: center; }
  .hero-actions { flex-direction: column; width: 100%; }
}

/* roulang page: article */
:root {
  --bg-light: #F5F1EA;
  --bg-dark: #16101D;
  --bg-card-dark: #1D1426;
  --primary: #E0446A;
  --primary-dark: #C0285B;
  --purple: #7B3FA0;
  --gold: #E4B566;
  --gold-light: #F6DCA8;
  --success: #3BA272;
  --text-light: #F8F4EE;
  --text-light-secondary: rgba(248,244,238,.72);
  --text-dark: #241D2B;
  --text-dark-secondary: #6B6375;
  --gradient: linear-gradient(135deg, #E0446A 0%, #7B3FA0 100%);
  --gold-gradient: linear-gradient(135deg, #E4B566, #F6DCA8);
  --radius-large: 24px;
  --radius-small: 16px;
  --radius-pill: 999px;
  --shadow-light: 0 12px 32px rgba(22,16,29,.08);
  --shadow-hover: 0 20px 40px rgba(22,16,29,.14);
  --font-main: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-num: Arial, Helvetica, sans-serif;
  --transition: .3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.8;
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: 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: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(22,16,29,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228,181,102,.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

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

.brand-logo svg {
  width: 32px;
  height: 32px;
  fill: transparent;
  stroke: var(--gold);
  stroke-width: 1.8;
}

.brand-logo span {
  color: var(--text-light);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .04em;
  white-space: nowrap;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: rgba(248,244,238,.72);
  font-size: .9375rem;
  letter-spacing: .03em;
  padding: 6px 2px;
  position: relative;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--gold-gradient);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(.5);
  transform-origin: left;
  transition: opacity var(--transition), transform var(--transition);
}

.nav-link:hover {
  color: var(--text-light);
}

.nav-link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--text-light);
}

.nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

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

.search-box {
  position: relative;
}

.search-box input {
  width: 190px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.12);
  padding: 0 40px 0 16px;
  color: var(--text-light);
  font-size: .875rem;
  transition: background var(--transition), border var(--transition);
}

.search-box input::placeholder {
  color: rgba(248,244,238,.5);
}

.search-box input:focus {
  background: rgba(255,255,255,.95);
  color: var(--text-dark);
  border-color: transparent;
}

.search-box input:focus::placeholder {
  color: var(--text-dark-secondary);
}

.search-box svg {
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  stroke: rgba(248,244,238,.55);
  pointer-events: none;
  transition: stroke var(--transition);
}

.search-box input:focus + svg {
  stroke: var(--text-dark-secondary);
}

.btn-login {
  color: var(--text-light);
  font-size: .875rem;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(248,244,238,.35);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-login:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  color: #fff;
  font-weight: 600;
  font-size: .9375rem;
  border-radius: var(--radius-pill);
  padding: 13px 28px;
  transition: filter var(--transition), transform var(--transition);
  white-space: nowrap;
  min-height: 44px;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

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

.btn-sm {
  padding: 9px 20px;
  min-height: 40px;
  font-size: .875rem;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,.5);
  color: var(--text-light);
  font-size: .9375rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 13px 32px;
  min-height: 44px;
  transition: all var(--transition);
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-ghost-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(36,29,43,.25);
  color: var(--text-dark);
  font-size: .9375rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 12px 32px;
  min-height: 44px;
  transition: all var(--transition);
}

.btn-ghost-dark:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  color: var(--text-dark-secondary);
  margin: 32px 0 0;
}

.breadcrumb a {
  color: var(--text-dark-secondary);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: rgba(36,29,43,.3);
}

.breadcrumb-current {
  color: var(--text-dark);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 320px;
}

/* ===== Article Layout ===== */
.article-shell {
  padding: 16px 0 0;
}

.article-wrapper {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.article-header {
  padding: 40px 0 8px;
}

.article-header h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--text-dark);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-top: 22px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(36,29,43,.1);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  color: var(--text-dark-secondary);
}

.meta-item svg {
  width: 15px;
  height: 15px;
  stroke: var(--gold);
  fill: transparent;
  stroke-width: 1.8;
}

.meta-item time {
  font-family: var(--font-num);
  letter-spacing: .02em;
}

/* ===== Article Body ===== */
.article-body {
  padding: 40px 0 48px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-dark);
}

.article-body > * + * {
  margin-top: 1.4em;
}

.article-body h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.7rem);
  font-weight: 700;
  line-height: 1.3;
  margin-top: 2em;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 1.8em;
  color: var(--text-dark);
}

.article-body p {
  margin-top: 1.2em;
}

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

.article-body li {
  margin-top: .5em;
}

.article-body li::marker {
  color: var(--primary);
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 18px 24px;
  background: rgba(224,68,106,.06);
  border-left: 4px solid var(--gold);
  border-radius: 0 16px 16px 0;
  color: var(--text-dark-secondary);
  font-size: .95rem;
}

.article-body img {
  border-radius: var(--radius-small);
  width: 100%;
  height: auto;
  object-fit: cover;
  margin: 1.6em 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: .9375rem;
}

.article-body th {
  background: var(--bg-dark);
  color: var(--text-light);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
}

.article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(36,29,43,.08);
}

.article-body tr:nth-child(even) td {
  background: rgba(36,29,43,.02);
}

.article-body hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(36,29,43,.2), transparent);
  margin: 2em 0;
}

.article-not-found {
  text-align: center;
  padding: 80px 24px;
}

.article-not-found p {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark-secondary);
  margin-bottom: 28px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(36,29,43,.25);
  color: var(--text-dark);
  font-size: .9375rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 12px 30px;
  min-height: 44px;
  transition: all var(--transition);
}

.btn-back:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ===== Tags ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 28px 0 8px;
  border-top: 1px solid rgba(36,29,43,.08);
}

.tag {
  display: inline-flex;
  align-items: center;
  background: rgba(224,68,106,.08);
  color: var(--primary-dark);
  font-size: .8125rem;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(224,68,106,.18);
  transition: all var(--transition);
}

.tag:hover {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}

/* ===== Related ===== */
.related-section {
  padding: 64px 24px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.related-head h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -.01em;
}

.related-head a {
  font-size: .875rem;
  color: var(--text-dark-secondary);
  transition: color var(--transition);
}

.related-head a:hover {
  color: var(--primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.related-card {
  background: #fff;
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: all var(--transition);
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.related-card .cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.related-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.related-card .info {
  padding: 20px 20px 22px;
}

.related-card h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dark-secondary);
  font-size: .8125rem;
}

.related-card .meta-row a {
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.related-card .meta-row a span {
  transition: transform var(--transition);
}

.related-card .meta-row a:hover span {
  transform: translateX(4px);
}

/* ===== Back to Home ===== */
.back-home-wrap {
  text-align: center;
  padding: 56px 24px 72px;
}

/* ===== Footer ===== */
.site-footer {
  background: #100B16;
  color: var(--text-light);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gold-gradient);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 56px 24px 36px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand p {
  font-size: .875rem;
  line-height: 1.7;
  color: rgba(248,244,238,.65);
  margin-top: 14px;
  max-width: 340px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo svg {
  width: 30px;
  height: 30px;
  fill: transparent;
  stroke: var(--gold);
  stroke-width: 1.8;
}

.footer-logo span {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .04em;
}

.footer-col h4 {
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--gold);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col li {
  font-size: .875rem;
}

.footer-col a,
.footer-col span {
  color: rgba(248,244,238,.65);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid rgba(248,244,238,.1);
  padding: 22px 24px;
  text-align: center;
  font-size: .8125rem;
  color: rgba(248,244,238,.45);
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .search-box input {
    width: 150px;
  }
  .nav-center {
    gap: 22px;
  }
}

@media (max-width: 768px) {
  .site-header.menu-open .header-inner {
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: flex;
    margin-left: auto;
  }

  .header-actions {
    display: none;
  }

  .nav-center {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-card-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 8px;
    border-bottom: 1px solid rgba(228,181,102,.25);
  }

  .site-header.menu-open .nav-center {
    display: flex;
  }

  .nav-link {
    font-size: 1.0625rem;
    padding: 12px 0;
  }

  .nav-link::after {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .breadcrumb-current {
    max-width: 180px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }

  .article-wrapper {
    padding: 0 18px;
  }

  .article-meta {
    gap: 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding: 44px 20px 28px;
  }

  .related-section {
    padding: 48px 18px 0;
  }

  .back-home-wrap {
    padding: 44px 18px 56px;
  }

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

@media (max-width: 400px) {
  .brand-logo span {
    font-size: .95rem;
  }
}

/* roulang page: category1 */
:root {
  --bg-light: #F5F1EA;
  --bg-dark: #16101D;
  --bg-dark-2: #1D1426;
  --primary: #E0446A;
  --primary-dark: #C0285B;
  --purple: #7B3FA0;
  --gold: #E4B566;
  --success: #3BA272;
  --warning: #E08A2E;
  --error: #C93A45;
  --text-light: #F8F4EE;
  --text-light-2: rgba(248,244,238,.72);
  --text-dark: #241D2B;
  --text-dark-2: #6B6375;
  --grad: linear-gradient(135deg, #E0446A 0%, #7B3FA0 100%);
  --grad-gold: linear-gradient(135deg, #E4B566, #F6DCA8);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-light: 0 12px 32px rgba(22,16,29,.08);
  --shadow-hover: 0 20px 40px rgba(22,16,29,.14);
  --container-w: 1200px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --section-pad: 120px;
  --section-pad-mobile: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.8;
  letter-spacing: .02em;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; outline: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-pad) 0; }
.section-light { background: var(--bg-light); }
.section-dark { background: var(--bg-dark); color: var(--text-light); }
.section-dark .section-sub { color: var(--text-light-2); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; line-height: 1.2; margin-bottom: 12px; }
.section-head p { color: var(--text-dark-2); font-size: 1rem; }
.section-dark .section-head p { color: var(--text-light-2); }
.section-tag { display: inline-block; padding: 6px 14px; background: rgba(224,68,106,.12); color: var(--primary); border-radius: var(--radius-pill); font-size: .875rem; font-weight: 600; margin-bottom: 16px; letter-spacing: .06em; }
.section-dark .section-tag { background: rgba(228,181,102,.16); color: var(--gold); }

/* 按钮 */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--grad); color: #fff; font-weight: 600;
  padding: 14px 28px; border-radius: var(--radius-pill);
  font-size: 1rem; line-height: 1.2; min-height: 44px;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
  box-shadow: 0 6px 18px rgba(224,68,106,.28);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.1); box-shadow: 0 10px 24px rgba(224,68,106,.36); }
.btn-primary:active { transform: translateY(0); filter: brightness(.96); }
.btn-primary:focus-visible { outline: 3px solid rgba(228,181,102,.7); outline-offset: 3px; }
.btn-primary:disabled { background: #4A4351; box-shadow: none; transform: none; cursor: not-allowed; }

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--text-light);
  padding: 12px 22px; border-radius: var(--radius-pill);
  font-size: .95rem; font-weight: 500; min-height: 44px;
  border: 1px solid rgba(255,255,255,.34);
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.btn-ghost:focus-visible { outline: 3px solid rgba(228,181,102,.5); outline-offset: 3px; }
.btn-ghost-light { color: var(--text-dark); border-color: rgba(36,29,43,.25); }
.btn-ghost-light:hover { color: var(--primary); border-color: var(--primary); }

/* 导航 */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(22,16,29,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(228,181,102,.25);
  height: 72px;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo svg { width: 32px; height: 32px; fill: rgba(228,181,102,.15); stroke: var(--gold); stroke-width: 1.6; }
.nav-logo svg path:last-child { stroke: var(--gold); fill: none; stroke-width: 2.4; }
.nav-logo span { color: #fff; font-weight: 700; font-size: 1.15rem; letter-spacing: .02em; white-space: nowrap; }
.nav-center { display: flex; align-items: center; gap: 32px; }
.nav-center .nav-link {
  color: rgba(255,255,255,.72); font-size: .95rem; font-weight: 500;
  padding: 10px 0; position: relative; transition: color .25s ease;
}
.nav-center .nav-link::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 0; height: 2px; background: var(--gold);
  transform: translateX(-50%); border-radius: 2px;
  transition: width .3s ease;
}
.nav-center .nav-link:hover { color: #fff; }
.nav-center .nav-link:hover::after { width: 24px; }
.nav-center .nav-link.active { color: #fff; }
.nav-center .nav-link.active::after { width: 24px; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box { position: relative; }
.search-box svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; stroke: rgba(255,255,255,.5); fill: none; stroke-width: 2; pointer-events: none; }
.search-box input {
  width: 160px; height: 40px; background: rgba(255,255,255,.1);
  border: 1px solid transparent; border-radius: var(--radius-pill);
  padding: 0 14px 0 38px; color: var(--text-light); font-size: .875rem;
  transition: background .25s ease, border-color .25s ease;
}
.search-box input::placeholder { color: rgba(255,255,255,.5); }
.search-box input:focus { background: #fff; color: var(--text-dark); border-color: var(--gold); }
.search-box input:focus::placeholder { color: rgba(36,29,43,.45); }
.nav-actions .btn-primary { padding: 10px 20px; font-size: .9rem; min-height: 40px; }
.nav-actions .btn-ghost { padding: 10px 20px; font-size: .9rem; min-height: 40px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; align-items: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-drawer {
  display: none; position: fixed; top: 72px; left: 0; right: 0; z-index: 99;
  background: var(--bg-dark-2); padding: 24px; border-bottom: 1px solid rgba(228,181,102,.25);
  transform: translateY(-16px); opacity: 0; pointer-events: none;
  transition: transform .3s ease, opacity .3s ease;
}
.mobile-drawer.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-drawer .drawer-nav { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.mobile-drawer .drawer-nav a { color: rgba(255,255,255,.85); font-size: 1.15rem; font-weight: 500; padding: 12px 8px; border-radius: 12px; transition: background .25s ease; }
.mobile-drawer .drawer-nav a:hover { background: rgba(255,255,255,.07); }
.mobile-drawer .drawer-nav a.active { color: var(--gold); background: rgba(228,181,102,.08); }
.mobile-drawer .drawer-actions { display: flex; gap: 12px; }
.mobile-drawer .drawer-search { width: 100%; margin-bottom: 16px; }
.mobile-drawer .drawer-search input { width: 100%; background: rgba(255,255,255,.1); border: 1px solid transparent; border-radius: var(--radius-pill); height: 44px; padding: 0 16px; color: #fff; }
.mobile-drawer .drawer-search input::placeholder { color: rgba(255,255,255,.5); }
.mobile-drawer .drawer-search input:focus { background: #fff; color: var(--text-dark); border-color: var(--gold); }

@media (max-width: 1024px) {
  .nav-center { gap: 20px; }
  .search-box input { width: 130px; }
}
@media (max-width: 768px) {
  .nav-center, .nav-actions .search-box, .nav-actions .btn-ghost, .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; }
  .mobile-drawer { display: block; }
  .header-inner { gap: 12px; }
}

/* 面包屑 */
.breadcrumb { background: var(--bg-light); padding: 24px 0 0; }
.breadcrumb .crumb-list { display: flex; align-items: center; gap: 8px; font-size: .875rem; color: var(--text-dark-2); }
.breadcrumb .crumb-list a:hover { color: var(--primary); }
.breadcrumb .crumb-list .sep { color: rgba(36,29,43,.3); }
.breadcrumb .crumb-list .current { color: var(--text-dark); font-weight: 500; }

/* 分类 Hero */
.cat-hero { position: relative; padding: 100px 0 120px; background: var(--bg-dark); color: var(--text-light); overflow: hidden; }
.cat-hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.webp'); background-size: cover; background-position: center; }
.cat-hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(22,16,29,.94) 15%, rgba(22,16,29,.72) 60%, rgba(22,16,29,.45)); }
.cat-hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; }
.hero-tag { display: inline-block; padding: 6px 14px; background: rgba(228,181,102,.14); border: 1px solid rgba(228,181,102,.25); color: var(--gold); border-radius: var(--radius-pill); font-size: .875rem; font-weight: 600; letter-spacing: .06em; margin-bottom: 20px; }
.cat-hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800; line-height: 1.12; letter-spacing: -.01em; margin-bottom: 18px; }
.cat-hero .hero-desc { font-size: 1.1rem; color: var(--text-light-2); max-width: 520px; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.hero-note { font-size: .875rem; color: rgba(248,244,238,.55); }
.hero-data { display: flex; flex-direction: column; gap: 16px; }
.stat-card {
  display: flex; align-items: center; gap: 16px;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md); padding: 20px 24px;
  transition: background .3s ease, transform .3s ease;
}
.stat-card:hover { background: rgba(255,255,255,.11); transform: translateY(-3px); }
.stat-icon { width: 42px; height: 42px; border-radius: 12px; background: rgba(228,181,102,.16); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.stat-icon svg { width: 22px; height: 22px; stroke: var(--gold); fill: none; stroke-width: 2; }
.stat-num { font-size: 1.8rem; font-weight: 700; color: var(--gold); line-height: 1.1; letter-spacing: -.01em; }
.stat-label { font-size: .875rem; color: var(--text-light-2); }

@media (max-width: 1024px) {
  .cat-hero .container { grid-template-columns: 1fr; gap: 40px; }
  .cat-hero { padding: 80px 0 90px; }
}
@media (max-width: 768px) {
  .cat-hero { padding: 64px 0 64px; }
  .hero-data { flex-direction: row; flex-wrap: wrap; }
  .stat-card { flex: 1 1 100%; }
}

/* 卖点板块 */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.feature-card {
  background: #fff; border-radius: var(--radius-lg); padding: 32px;
  box-shadow: var(--shadow-light); border: 1px solid transparent;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  position: relative; overflow: hidden;
}
.feature-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--grad); opacity: 0; transition: opacity .3s ease; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(224,68,106,.1); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.feature-icon svg { width: 26px; height: 26px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
.feature-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.feature-card p { color: var(--text-dark-2); font-size: .95rem; line-height: 1.7; }
.feature-note { display: block; margin-top: 14px; font-size: .75rem; color: rgba(107,99,117,.6); }

/* 适用场景 */
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card { border-radius: var(--radius-lg); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); padding: 28px; transition: background .3s ease, transform .3s ease; position: relative; }
.scenario-card:hover { background: rgba(255,255,255,.09); transform: translateY(-6px); }
.scenario-card .cover-wrap { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 20px; aspect-ratio: 4/3; background: rgba(255,255,255,.05); }
.scenario-card .cover-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.scenario-card:hover .cover-wrap img { transform: scale(1.04); }
.scenario-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-light); margin-bottom: 10px; }
.scenario-card p { color: var(--text-light-2); font-size: .925rem; line-height: 1.7; }
.scenario-tag { display: inline-block; margin-top: 16px; padding: 4px 12px; border-radius: var(--radius-pill); font-size: .8rem; background: rgba(228,181,102,.15); color: var(--gold); font-weight: 500; }

@media (max-width: 900px) { .scenario-grid { grid-template-columns: 1fr; } }

/* 流程板块 */
.steps-section { position: relative; background: var(--bg-light); }
.steps-section .section-head { text-align: left; }
.steps-grid { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.steps-grid::before { content: ""; position: absolute; top: 30px; left: 8%; right: 8%; height: 2px; border-top: 2px dashed rgba(224,68,106,.3); }
.step-item { position: relative; text-align: left; padding-top: 0; }
.step-num { font-size: 3rem; font-weight: 800; color: rgba(224,68,106,.15); line-height: 1; margin-bottom: 8px; position: relative; z-index: 2; display: inline-block; background: var(--bg-light); padding-right: 12px; }
.step-icon { width: 44px; height: 44px; border-radius: 50%; background: rgba(224,68,106,.12); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.step-icon svg { width: 20px; height: 20px; stroke: var(--primary); fill: none; stroke-width: 2; }
.step-item h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.step-item p { color: var(--text-dark-2); font-size: .9rem; line-height: 1.6; }
@media (max-width: 1000px) { .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; } .steps-grid::before { display: none; } }
@media (max-width: 560px) { .steps-grid { grid-template-columns: 1fr; } }

/* CTA */
.cta-section { position: relative; background: var(--bg-dark); color: var(--text-light); overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.webp'); background-size: cover; background-position: center; }
.cta-overlay { position: absolute; inset: 0; background: rgba(22,16,29,.75); }
.cta-section .container { position: relative; z-index: 2; }
.cta-card { text-align: center; max-width: 780px; margin: 0 auto; padding: 80px 40px; border-radius: var(--radius-lg); background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); }
.cta-card h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; margin-bottom: 16px; line-height: 1.2; }
.cta-card p { color: var(--text-light-2); font-size: 1.05rem; margin-bottom: 32px; }
.cta-card .double-btn { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* FAQ */
.faq-wrap { max-width: 840px; margin: 0 auto; }
.faq-item { background: #fff; border-radius: var(--radius-md); border: 1px solid rgba(36,29,43,.08); padding: 24px 28px; margin-bottom: 16px; transition: box-shadow .3s ease, border-color .3s ease; position: relative; }
.faq-item::before { content: ""; position: absolute; left: 0; top: 20px; bottom: 20px; width: 2px; background: var(--gold); opacity: 0; transition: opacity .3s ease; }
.faq-item:hover { box-shadow: var(--shadow-light); border-color: rgba(228,181,102,.4); }
.faq-item:hover::before { opacity: 1; }
.faq-q { display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; }
.faq-q h3 { font-size: 1rem; font-weight: 600; color: var(--text-dark); line-height: 1.5; }
.faq-icon { width: 34px; height: 34px; border-radius: 50%; background: rgba(224,68,106,.1); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: transform .3s ease, background .3s ease; }
.faq-icon svg { width: 18px; height: 18px; stroke: var(--primary); fill: none; stroke-width: 2; transition: transform .3s ease; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(224,68,106,.16); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s ease, opacity .3s ease; opacity: 0; }
.faq-item.open .faq-a { max-height: 400px; opacity: 1; padding-top: 16px; }
.faq-a p { color: var(--text-dark-2); font-size: .95rem; line-height: 1.8; }

/* 页脚 */
.site-footer { background: #100B16; color: rgba(248,244,238,.75); border-top: 2px solid var(--grad-gold); }
.site-footer::before { content: ""; display: block; height: 2px; background: var(--grad-gold); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; padding: 64px 0 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.footer-logo svg { width: 30px; height: 30px; fill: rgba(228,181,102,.12); stroke: var(--gold); stroke-width: 1.6; }
.footer-logo svg path:last-child { stroke: var(--gold); fill: none; stroke-width: 2.4; }
.footer-logo span { color: #fff; font-weight: 700; font-size: 1.1rem; }
.footer-brand p { font-size: .9rem; line-height: 1.75; color: rgba(248,244,238,.6); max-width: 340px; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--gold); border-radius: 2px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(248,244,238,.65); font-size: .9rem; transition: color .25s ease, padding-left .25s ease; }
.footer-col ul a:hover { color: var(--gold); padding-left: 4px; }
.footer-col ul span { color: rgba(248,244,238,.5); font-size: .875rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; text-align: center; font-size: .875rem; color: rgba(248,244,238,.4); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } 
  .footer-bottom { text-align: center; }
}

/* 通用响应式 */
@media (max-width: 768px) {
  .section { padding: var(--section-pad-mobile) 0; }
  .section-head { margin-bottom: 36px; }
  .features-grid { grid-template-columns: 1fr; }
}