/* roulang page: index */
:root {
  --bg: #F5F3EE;
  --bg-alt: #EAE6DC;
  --ink: #101E1B;
  --ink-soft: #4A5753;
  --line: #D8D2C6;
  --accent: #FF4D00;
  --accent-hover: #E14300;
  --accent-soft: #FFEDE5;
  --green: #1F3B32;
  --white: #FFFFFF;
  --radius-card: 12px;
  --radius-img: 10px;
  --radius-btn: 999px;
  --radius-input: 8px;
  --shadow-card: 0 1px 4px rgba(16,30,27,0.04);
  --shadow-card-hover: 0 10px 28px rgba(16,30,27,0.10);
  --space-section: 88px;
  --space-section-mobile: 56px;
  --font-main: "Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  outline: none;
}

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

.section {
  padding: var(--space-section) 0;
}

.section-head {
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
}

.section-head h2::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-right: 14px;
  flex-shrink: 0;
}

.section-head p {
  margin-top: 14px;
  padding-left: 42px;
  font-size: 15px;
  color: var(--ink-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(255,77,0,0.22);
}

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

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-1px);
}

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

.btn-dark {
  background: var(--green);
  color: #fff;
}

.btn-dark:hover {
  background: #163028;
  color: #fff;
}

.btn-sm {
  height: 40px;
  padding: 0 24px;
  font-size: 14px;
}

.btn-lg {
  height: 52px;
  padding: 0 40px;
  font-size: 16px;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.site-header.scrolled {
  background: rgba(255,255,255,0.98);
  border-bottom-color: var(--line);
  box-shadow: 0 2px 12px rgba(16,30,27,0.06);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  position: relative;
  color: var(--ink-soft);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  text-decoration: none;
  transition: color .2s ease;
}

.nav-menu a:hover {
  color: var(--accent);
}

.nav-menu a.active {
  color: var(--ink);
  font-weight: 600;
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-mobile-footer {
  display: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  padding: 9px;
  transition: border-color .2s ease, background .2s ease;
}

.hamburger:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  transition: all .25s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 560px;
  max-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/coverpic/cover-1.png') center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16,30,27,0.96) 0%, rgba(16,30,27,0.68) 58%, rgba(16,30,27,0.35) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 150px 24px 130px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.2;
  font-weight: 800;
  color: #fff;
  max-width: 760px;
  margin: 0;
  letter-spacing: 0.01em;
}

.hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin: 20px 0 0;
  max-width: 560px;
}

.hero-time {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  margin: 18px 0 0;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.hero-countdown {
  display: flex;
  gap: 28px;
  margin: 30px 0 32px;
  flex-wrap: wrap;
}

.cd-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 68px;
}

.cd-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  transition: opacity .3s ease, transform .3s ease;
}

.cd-num.num-leave {
  opacity: 0;
  transform: translateY(-6px);
}

.cd-num.num-enter {
  opacity: 0;
  transform: translateY(6px);
  animation: cdIn .3s ease forwards;
}

@keyframes cdIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.cd-label {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
  margin-top: 6px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-info-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  border-top: 1px solid rgba(255,255,255,0.16);
  background: rgba(16,30,27,0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 14px 0;
}

.hero-info-bar .cell {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  padding: 4px 8px;
}

.hero-info-bar .hi-label {
  display: inline-block;
  margin-right: 8px;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}

/* ===== 开播倒计时条带 ===== */
.countdown-band {
  background: var(--ink);
  padding: 64px 0 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.countdown-band::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,77,0,0.4), transparent);
}

.cd-band-label {
  display: inline-block;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
}

.cd-band-digits {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin: 30px 0 16px;
  flex-wrap: wrap;
}

.cd-band-group {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.cd-band-num {
  font-size: 86px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: opacity .3s ease, transform .3s ease;
}

.cd-band-num.num-leave {
  opacity: 0;
  transform: translateY(-6px);
}

.cd-band-num.num-enter {
  opacity: 0;
  transform: translateY(6px);
  animation: cdIn .3s ease forwards;
}

.cd-band-unit {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

.cd-band-sep {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.14);
}

.cd-band-hint {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin: 0 0 22px;
}

/* ===== 看点列表 ===== */
.highlights {
  background: var(--bg);
}

.highlights-list {
  border-top: 1px solid var(--line);
}

.highlight-row {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 28px 8px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease, padding-left .2s ease, padding-right .2s ease;
}

.highlight-row:hover {
  background: var(--bg-alt);
  padding-left: 16px;
  padding-right: 0;
}

.hl-num {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  min-width: 76px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  position: relative;
}

.hl-num::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--accent);
  margin-left: 10px;
  vertical-align: middle;
  opacity: 0.55;
}

.hl-body {
  flex: 1;
  min-width: 0;
}

.hl-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  transition: color .2s ease;
}

.highlight-row:hover .hl-body h3 {
  color: var(--accent);
}

.hl-body p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 8px 0 0;
  line-height: 1.7;
}

.hl-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color .2s ease;
}

.hl-link:hover {
  color: var(--accent);
}

/* ===== 提醒订阅 ===== */
.subscribe {
  padding: var(--space-section) 0;
  background: var(--bg-alt);
}

.subscribe-card {
  background: #fff;
  border-radius: 16px;
  padding: 44px;
  box-shadow: var(--shadow-card);
}

.subscribe-text h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  margin-bottom: 18px;
}

.subscribe-text h2::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-right: 14px;
  flex-shrink: 0;
}

.subscribe-text p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.8;
  max-width: 480px;
}

.subscribe-form-wrap {
  padding-top: 8px;
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.subscribe-form input,
.subscribe-form select {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  border-radius: var(--radius-input);
  border: 1px solid var(--line);
  background: #fff;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .2s ease, box-shadow .2s ease;
  appearance: auto;
  -webkit-appearance: none;
}

.subscribe-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234A5753' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.subscribe-form input::placeholder {
  color: #A6AFA8;
}

.subscribe-form input:focus,
.subscribe-form select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255,77,0,0.12);
}

.subscribe-form input.error {
  border-color: #D93025;
}

.subscribe-form input.error:focus {
  border-color: #D93025;
  box-shadow: 0 0 0 3px rgba(217,48,37,0.12);
}

.btn-full {
  width: 100%;
}

.form-tip {
  font-size: 12px;
  color: #A6AFA8;
  line-height: 1.6;
  margin-top: 2px;
}

.form-error {
  display: none;
  font-size: 12px;
  color: #D93025;
  margin-top: 2px;
}

.form-result {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--green);
  margin-top: 2px;
}

.success-dot {
  width: 8px;
  height: 8px;
  background: #2E7D32;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* ===== 回放入口 ===== */
.replays {
  background: var(--bg);
}

.replay-col {
  display: flex;
  margin-bottom: 24px;
}

.replay-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .24s ease, box-shadow .24s ease;
  text-decoration: none;
}

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

.replay-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
}

.replay-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .24s ease;
}

.replay-card:hover .replay-cover img {
  transform: scale(1.03);
}

.replay-duration {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(16,30,27,0.85);
  color: #fff;
  font-size: 12px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.replay-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  padding: 20px 20px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.replay-meta {
  font-size: 13px;
  color: var(--ink-soft);
  padding: 6px 20px 0;
  font-variant-numeric: tabular-nums;
}

.replay-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  padding: 14px 20px 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap .2s ease;
}

.replay-card:hover .replay-link {
  gap: 10px;
}

/* ===== 最新资讯 ===== */
.news {
  padding: var(--space-section) 0;
  background: var(--bg-alt);
}

.news-list {
  border-top: 1px solid var(--line);
}

.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 12px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background .2s ease;
}

.news-row:hover {
  background: rgba(255,255,255,0.7);
}

.news-badge {
  flex-shrink: 0;
  padding: 4px 12px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.news-title {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  transition: color .2s ease;
}

.news-row:hover .news-title {
  color: var(--accent);
}

.news-summary {
  flex: 2;
  font-size: 14px;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.news-time {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.news-arrow {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 14px;
}

.news-empty {
  border: 2px dashed var(--line);
  border-radius: 12px;
  padding: 60px 20px;
  text-align: center;
  color: var(--ink-soft);
  margin-top: 24px;
}

.news-empty i {
  font-size: 36px;
  color: var(--line);
  margin-bottom: 14px;
  display: block;
}

.news-empty p {
  font-size: 15px;
}

/* ===== FAQ ===== */
.faq {
  background: var(--bg);
}

.faq-list {
  max-width: 860px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.faq-item.active {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(255,77,0,0.06);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  transition: color .2s ease;
}

.faq-item:hover .faq-q {
  color: var(--accent);
}

.faq-q::after {
  content: '+';
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  transition: transform .3s ease;
}

.faq-item.active .faq-q::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding: 0 24px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
}

.faq-item.active .faq-a {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* ===== CTA 条带 ===== */
.cta-band {
  position: relative;
  background: var(--ink);
  padding: 72px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  opacity: 0.15;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-line {
  display: block;
  width: 28px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 18px;
}

.cta-left h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  color: #fff;
  line-height: 1.3;
  font-weight: 700;
  margin: 0;
  max-width: 640px;
}

.cta-right {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.72);
  padding-top: 64px;
  font-size: 14px;
}

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

.footer-logo {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  margin: 16px 0 20px;
  color: rgba(255,255,255,0.72);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.24);
  color: rgba(255,255,255,0.85);
  transition: all .2s ease;
}

.footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.site-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

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

.site-footer ul li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.site-footer a {
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  transition: color .2s ease;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-contact {
  margin-top: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
  margin-top: 4px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}

.footer-bottom a {
  color: rgba(255,255,255,0.55);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .countdown-band {
    padding: 52px 0 48px;
  }

  .cd-band-num {
    font-size: 64px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .hamburger {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 96px 32px 32px;
    box-shadow: -12px 0 32px rgba(16,30,27,0.12);
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 999;
    border-left: 1px solid var(--line);
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-menu {
    flex-direction: column;
    gap: 8px;
    width: 100%;
  }

  .nav-menu a {
    display: block;
    font-size: 22px;
    line-height: 2.2;
    padding: 8px 0;
  }

  .nav-menu a.active {
    color: var(--accent);
  }

  .nav-menu a.active::after {
    display: none;
  }

  .nav-mobile-footer {
    display: block;
    margin-top: 40px;
    width: 100%;
  }

  .nav-mobile-footer .btn {
    width: 100%;
  }

  .nav-actions .nav-desktop-cta {
    display: none;
  }

  .hero-info-bar {
    display: none;
  }

  .hero-content {
    padding: 140px 20px 80px;
  }

  .hero-countdown {
    gap: 16px;
  }

  .cd-item {
    min-width: 56px;
  }

  .cd-num {
    font-size: 34px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-right {
    width: 100%;
    flex-wrap: wrap;
  }

  .cta-right .btn {
    flex: 1;
    min-width: 140px;
  }
}

@media (max-width: 640px) {
  .section,
  .subscribe {
    padding: var(--space-section-mobile) 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .section-head p {
    padding-left: 0;
  }

  .hero {
    min-height: 560px;
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(16,30,27,0.92) 0%, rgba(16,30,27,0.85) 60%, rgba(16,30,27,0.78) 100%);
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .cd-band-digits {
    gap: 12px;
  }

  .cd-band-num {
    font-size: 40px;
  }

  .cd-band-sep {
    height: 32px;
  }

  .cd-band-group {
    gap: 4px;
    flex-direction: column;
    align-items: center;
  }

  .cd-band-unit {
    font-size: 12px;
  }

  .highlight-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 24px 4px;
  }

  .highlight-row:hover {
    padding-left: 8px;
    padding-right: 0;
  }

  .hl-num {
    min-width: auto;
    font-size: 36px;
  }

  .hl-link {
    align-self: flex-start;
  }

  .subscribe-card {
    padding: 28px 20px;
  }

  .subscribe-form input,
  .subscribe-form select {
    height: 48px;
  }

  .news-row {
    gap: 12px;
    padding: 18px 4px;
  }

  .news-summary,
  .news-time {
    display: none;
  }

  .news-title {
    flex: 1;
    font-size: 15px;
  }

  .news-badge {
    padding: 3px 10px;
    font-size: 11px;
  }

  .faq-q {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-a {
    padding: 0 18px;
    font-size: 13px;
  }

  .faq-item.active .faq-a {
    padding: 0 18px 16px;
  }

  .cta-band {
    padding: 56px 0;
  }

  .cta-right {
    flex-direction: column;
  }

  .cta-right .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category1 */
:root{
  --bg:#F5F3EE;
  --bg-alt:#EAE6DC;
  --ink:#101E1B;
  --ink-soft:#4A5753;
  --line:#D8D2C6;
  --accent:#FF4D00;
  --accent-hover:#E14300;
  --accent-soft:#FFEDE5;
  --green:#1F3B32;
  --radius:12px;
  --radius-lg:16px;
  --shadow:0 1px 4px rgba(16,30,27,0.04);
  --shadow-hover:0 10px 28px rgba(16,30,27,0.10);
  --font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --transition:all 0.24s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-wrap:wrap}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 28px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.4;
  text-decoration:none;cursor:pointer;
  transition:var(--transition);
  border:1px solid transparent;min-height:48px;
  letter-spacing:0.02em;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,77,0,0.25)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,0.65);color:#fff}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,0.1);color:#fff;transform:translateY(-1px)}
.btn-outline-dark{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline-dark:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:8px 20px;min-height:40px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:var(--transition);
}
.site-header.scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 4px 20px rgba(16,30,27,0.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--ink);
  text-decoration:none;letter-spacing:0.01em;
}
.logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);flex-shrink:0;
}
.logo-text{white-space:nowrap}
.logo:hover{color:var(--ink);opacity:0.92}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-menu{display:flex;gap:32px;align-items:center}
.nav-menu a{
  font-size:15px;font-weight:500;color:var(--ink-soft);
  text-decoration:none;padding:8px 2px;position:relative;
  transition:color 0.2s;
}
.nav-menu a:hover{color:var(--ink)}
.nav-menu a.active{color:var(--ink);font-weight:600}
.nav-menu a.active::after{
  content:'';position:absolute;bottom:0;left:0;
  width:100%;height:2px;background:var(--accent);
  border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-desktop-cta{display:inline-flex}
.hamburger{
  display:none;flex-direction:column;gap:5px;
  background:none;border:none;padding:10px;cursor:pointer;
}
.hamburger span{
  display:block;width:22px;height:2px;background:var(--ink);
  transition:transform 0.3s,opacity 0.3s;
}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile-footer{display:none}

/* ===== 分类首屏 Hero ===== */
.category-hero{
  position:relative;
  min-height:560px;
  display:flex;align-items:center;
  background:
    linear-gradient(100deg,rgba(16,30,27,0.94) 0%,rgba(16,30,27,0.55) 55%,rgba(16,30,27,0.35) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;padding:140px 0 80px;
}
.hero-content{max-width:660px}
.hero-badge{
  display:inline-flex;align-items:center;
  background:rgba(255,255,255,0.10);
  border:1px solid rgba(255,255,255,0.22);
  color:var(--accent);font-size:13px;font-weight:600;
  padding:6px 18px;border-radius:999px;
  letter-spacing:0.05em;margin-bottom:24px;
}
.category-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;line-height:1.2;
  color:#fff;margin-bottom:16px;
}
.hero-subtitle{
  font-size:clamp(16px,2vw,20px);
  color:rgba(255,255,255,0.82);
  font-weight:400;margin-bottom:36px;
}
.hero-stats{
  display:flex;gap:52px;margin-top:40px;
  padding-top:32px;border-top:1px solid rgba(255,255,255,0.14);
}
.stat{text-align:left}
.stat-num{
  display:block;font-size:34px;font-weight:800;
  color:var(--accent);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;font-size:13px;color:rgba(255,255,255,0.72);margin-top:6px;
  letter-spacing:0.04em;
}

/* ===== 板块标题 ===== */
.section-title{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:700;line-height:1.3;color:var(--ink);
  margin-bottom:16px;padding-left:20px;position:relative;
}
.section-title::before{
  content:'';position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:28px;background:var(--accent);
  border-radius:2px;
}
.section-subtitle{
  font-size:15px;color:var(--ink-soft);
  margin-bottom:40px;max-width:560px;
}

/* ===== 分类介绍区 ===== */
.category-intro{padding:96px 0}
.intro-copy p{
  font-size:16px;line-height:1.9;color:var(--ink-soft);
  margin-bottom:20px;
}
.intro-copy p:last-child{margin-bottom:0}
.intro-points{margin-top:28px}
.intro-points li{
  display:flex;align-items:center;gap:12px;
  font-size:15px;color:var(--ink);margin-bottom:12px;
  font-weight:500;
}
.intro-points li::before{
  content:'';
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);flex-shrink:0;
}
.intro-image-wrap{
  position:relative;
}
.intro-image{
  width:100%;border-radius:var(--radius-lg);
  object-fit:cover;box-shadow:var(--shadow-hover);
  aspect-ratio:4/3;
}
.intro-image-badge{
  position:absolute;bottom:20px;left:20px;
  background:rgba(16,30,27,0.88);
  color:#fff;font-size:13px;font-weight:600;
  padding:8px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,0.2);
  letter-spacing:0.03em;
}

/* ===== 精选内容区 ===== */
.featured-content{
  padding:96px 0;
  background:var(--bg-alt);
}
.featured-grid{margin-top:8px}
.featured-card{
  background:#fff;border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:var(--transition);
  margin-bottom:24px;
  border:1px solid rgba(216,210,198,0.4);
}
.featured-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:transparent;
}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--bg-alt);
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.4s ease;
}
.featured-card:hover .card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;top:14px;left:14px;
  background:rgba(16,30,27,0.82);
  color:#fff;font-size:12px;font-weight:600;
  padding:5px 14px;border-radius:999px;
  letter-spacing:0.04em;
  backdrop-filter:blur(4px);
}
.card-body{padding:24px 26px 26px}
.card-body h3{
  font-size:20px;font-weight:700;line-height:1.4;
  color:var(--ink);margin-bottom:10px;
}
.card-body p{
  font-size:14px;line-height:1.75;color:var(--ink-soft);
  margin-bottom:18px;
}
.card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
  text-decoration:none;
}
.card-link i{transition:transform 0.2s}
.card-link:hover i{transform:translateX(4px)}
.featured-offset{transform:none}
@media (min-width:1025px){
  .featured-offset{transform:translateY(48px)}
}

/* ===== CTA 条带 ===== */
.cta-band{
  background:var(--ink);color:#fff;
  padding:80px 0;position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:'';position:absolute;top:0;left:0;
  width:80px;height:4px;background:var(--accent);
}
.cta-band h2{
  color:#fff;font-size:clamp(24px,3vw,36px);
  font-weight:700;line-height:1.3;margin-bottom:10px;
}
.cta-band p{
  color:rgba(255,255,255,0.68);
  font-size:15px;line-height:1.7;
}
.cta-actions{
  display:flex;gap:16px;justify-content:flex-end;
  flex-wrap:wrap;
}
@media (max-width:1023px){
  .cta-actions{justify-content:flex-start;margin-top:24px}
  .cta-actions .btn{width:100%}
}

/* ===== FAQ ===== */
.faq-section{padding:96px 0}
.faq-list{max-width:780px;margin:24px auto 0}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:16px;
  overflow:hidden;transition:border-color 0.3s,box-shadow 0.3s;
}
.faq-item.active{
  border-color:rgba(255,77,0,0.5);
  box-shadow:0 4px 16px rgba(255,77,0,0.06);
}
.faq-question{
  width:100%;text-align:left;
  background:none;border:none;
  padding:22px 26px;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  transition:color 0.2s;
}
.faq-question:hover{color:var(--accent)}
.faq-icon{
  width:28px;height:28px;border-radius:50%;
  background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:var(--transition);
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;width:12px;height:2px;
  background:var(--accent);border-radius:1px;
}
.faq-icon{position:relative}
.faq-icon::after{transform:rotate(90deg);transition:transform 0.3s}
.faq-item.active .faq-icon::after{transform:rotate(0deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  padding:0 26px;
  color:var(--ink-soft);font-size:15px;line-height:1.85;
  transition:max-height 0.35s ease,padding 0.35s ease;
}
.faq-item.active .faq-answer{
  max-height:400px;padding:0 26px 22px;
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,0.75);
  padding:72px 0 0;
  font-size:14px;
}
.footer-grid{padding-bottom:48px}
.footer-logo{margin-bottom:16px}
.footer-logo .logo-text{color:#fff}
.footer-desc{
  font-size:14px;line-height:1.8;
  color:rgba(255,255,255,0.6);margin-bottom:20px;
  max-width:320px;
}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,0.08);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,0.7);
  border:1px solid rgba(255,255,255,0.12);
  transition:var(--transition);
  font-size:15px;
}
.footer-social a:hover{
  background:var(--accent);color:#fff;
  border-color:var(--accent);transform:translateY(-2px);
}
.site-footer h4{
  color:#fff;font-size:15px;font-weight:600;
  margin-bottom:18px;letter-spacing:0.02em;
}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{
  color:rgba(255,255,255,0.6);
  text-decoration:none;font-size:14px;
  transition:color 0.2s;
  position:relative;
}
.site-footer ul a:hover{color:#fff}
.footer-contact li{
  display:flex;align-items:center;gap:10px;
  color:rgba(255,255,255,0.6);
}
.footer-contact i{
  width:20px;color:var(--accent);font-size:14px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.10);
  padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:8px;
  font-size:13px;color:rgba(255,255,255,0.45);
}
.footer-bottom a{color:rgba(255,255,255,0.5);text-decoration:none}
.footer-bottom a:hover{color:#fff}

/* ===== 响应式断点 ===== */
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:-100%;
    width:82%;max-width:360px;height:100vh;
    background:#fff;z-index:99;
    padding:96px 36px 36px;
    flex-direction:column;align-items:flex-start;
    gap:36px;
    transition:right 0.35s ease;
    box-shadow:-16px 0 40px rgba(16,30,27,0.14);
    overflow-y:auto;
  }
  .main-nav.open{right:0}
  .nav-menu{
    flex-direction:column;align-items:flex-start;
    gap:8px;width:100%;
  }
  .nav-menu a{
    font-size:22px;font-weight:600;color:var(--ink);
    display:block;padding:12px 0;
    width:100%;
  }
  .nav-menu a::after{display:none}
  .nav-menu a.active{color:var(--accent)}
  .nav-mobile-footer{
    display:block;width:100%;margin-top:auto;
    padding-top:24px;border-top:1px solid var(--line);
  }
  .nav-mobile-footer .btn{width:100%}
  .nav-desktop-cta{display:none}
  .hamburger{display:flex}
  .category-hero{
    min-height:auto;padding:120px 0 56px;
    background:
      linear-gradient(160deg,rgba(16,30,27,0.92) 0%,rgba(16,30,27,0.65) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  }
  .hero-stats{gap:28px;flex-wrap:wrap}
  .stat-num{font-size:28px}
  .category-intro,.featured-content,.faq-section{padding:64px 0}
  .intro-image{margin-top:32px}
  .cta-band{padding:56px 0}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .header-inner{height:64px}
  .logo{font-size:17px}
  .logo-dot{width:8px;height:8px}
  .category-hero{padding:100px 0 44px}
  .hero-subtitle{margin-bottom:24px}
  .hero-stats{flex-direction:column;gap:20px;margin-top:28px;padding-top:24px}
  .stat{display:flex;align-items:baseline;gap:12px}
  .stat-num{font-size:26px}
  .stat-label{font-size:13px;margin-top:0}
  .section-title{font-size:24px}
  .card-body{padding:20px}
  .card-body h3{font-size:18px}
  .faq-question{padding:18px 20px;font-size:15px}
  .faq-item.active .faq-answer{padding:0 20px 18px}
  .footer-grid{padding-bottom:32px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  *{transition:opacity 0.2s ease !important;transform:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --bg: #F5F3EE;
            --bg-alt: #EAE6DC;
            --ink: #101E1B;
            --ink-soft: #4A5753;
            --line: #D8D2C6;
            --accent: #FF4D00;
            --accent-hover: #E14300;
            --accent-soft: #FFEDE5;
            --green: #1F3B32;
            --radius-card: 12px;
            --radius-img: 10px;
            --radius-btn: 999px;
            --radius-input: 8px;
            --shadow-card: 0 1px 4px rgba(16, 30, 27, 0.04);
            --shadow-hover: 0 10px 28px rgba(16, 30, 27, 0.10);
            --font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            font-variant-numeric: tabular-nums;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent);
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 2;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            transition: all 0.24s ease;
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 77, 0, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(255, 77, 0, 0.2);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--ink);
            border-color: var(--line);
        }
        .btn-outline-dark:hover {
            border-color: var(--ink);
            color: var(--ink);
            transform: translateY(-1px);
        }
        .btn-sm {
            min-height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(245, 243, 238, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.97);
            border-bottom-color: var(--line);
            box-shadow: 0 4px 20px rgba(16, 30, 27, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 19px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .main-nav {
            display: flex;
            align-items: center;
            flex: 1;
            justify-content: flex-end;
        }
        .nav-menu {
            display: flex;
            gap: 36px;
            margin: 0;
            padding: 0;
        }
        .nav-menu>li>a {
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-soft);
            padding: 8px 0;
            position: relative;
            transition: color 0.2s ease;
            display: inline-block;
        }
        .nav-menu>li>a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.24s ease;
            border-radius: 2px;
        }
        .nav-menu>li>a:hover,
        .nav-menu>li>a.active {
            color: var(--ink);
        }
        .nav-menu>li>a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-left: 32px;
        }
        .nav-mobile-footer {
            display: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: transparent;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: var(--accent-soft);
        }
        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 136px 0 56px;
            background: var(--bg);
            border-bottom: 1px solid var(--line);
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 46%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.07;
            z-index: 0;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 20%, transparent 20%);
            opacity: 0.6;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--ink-soft);
            margin-bottom: 28px;
            font-weight: 500;
        }
        .breadcrumb a {
            color: var(--ink-soft);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: var(--line);
            font-weight: 400;
        }
        .breadcrumb .current {
            color: var(--ink);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }
        .article-hero h1 {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--ink);
            max-width: 880px;
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
            letter-spacing: -0.01em;
        }
        .article-hero h1::before {
            content: '';
            display: block;
            width: 32px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            font-size: 13px;
            color: var(--ink-soft);
            align-items: center;
            position: relative;
            z-index: 2;
            font-weight: 500;
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item i {
            color: var(--accent);
            font-size: 14px;
        }

        /* ===== Article Body ===== */
        .article-body {
            padding: 72px 0 48px;
            background: var(--bg);
        }
        .article-content {
            max-width: 760px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.9;
            color: var(--ink);
            word-break: break-word;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 48px 0 20px;
            line-height: 1.4;
            color: var(--ink);
            padding-bottom: 12px;
            border-bottom: 1px solid var(--line);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 36px 0 16px;
            color: var(--ink);
        }
        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-card);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-soft);
            padding: 20px 24px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            font-style: normal;
            color: var(--ink-soft);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }
        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--accent);
            border-bottom: 1px solid rgba(255, 77, 0, 0.3);
            transition: border-color 0.2s ease, color 0.2s ease;
        }
        .article-content a:hover {
            border-color: var(--accent);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--line);
            padding: 12px 16px;
            text-align: left;
        }
        .article-content table th {
            background: var(--bg-alt);
            font-weight: 600;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 64px 32px;
            max-width: 520px;
            margin: 0 auto;
            border: 2px dashed var(--line);
            border-radius: var(--radius-card);
            background: var(--bg);
        }
        .not-found i {
            font-size: 48px;
            color: var(--line);
            margin-bottom: 20px;
            display: block;
        }
        .not-found h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .not-found p {
            font-size: 14px;
            color: var(--ink-soft);
            margin-bottom: 24px;
        }

        /* ===== Article Tags ===== */
        .article-tags {
            padding: 8px 0 56px;
            background: var(--bg);
        }
        .tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            max-width: 760px;
            margin: 0 auto;
        }
        .tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-btn);
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(255, 77, 0, 0.15);
            transition: all 0.2s ease;
        }
        .tag:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ===== Related Posts ===== */
        .related-posts {
            padding: 80px 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--line);
        }
        .section-title {
            font-size: clamp(24px, 3.2vw, 34px);
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 40px;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 0;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 28px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 16px;
            flex-shrink: 0;
        }
        .related-grid {
            row-gap: 24px;
        }
        .related-card {
            display: block;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: all 0.24s ease;
            height: 100%;
            box-shadow: var(--shadow-card);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: inherit;
        }
        .related-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }
        .related-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: var(--radius-btn);
            background: rgba(16, 30, 27, 0.82);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .related-info {
            padding: 20px 24px 24px;
        }
        .related-info h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--ink);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s;
        }
        .related-card:hover .related-info h3 {
            color: var(--accent);
        }
        .related-date {
            font-size: 13px;
            color: var(--ink-soft);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-date i {
            color: var(--accent);
        }

        /* ===== CTA Band ===== */
        .cta-band {
            background: var(--ink);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 160px, rgba(255, 255, 255, 0.08) 160px);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cta-left {
            flex: 1;
            min-width: 280px;
        }
        .cta-left h2 {
            font-size: clamp(26px, 3.2vw, 36px);
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .cta-left p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }
        .cta-right {
            display: flex;
            gap: 16px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* ===== Back Link ===== */
        .back-wrap {
            padding: 40px 0 64px;
            background: var(--ink);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.2s ease, transform 0.2s ease;
        }
        .back-link i {
            transition: transform 0.2s ease;
        }
        .back-link:hover {
            color: #fff;
            transform: translateX(-4px);
        }
        .back-link:hover i {
            transform: translateX(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.75);
            padding: 72px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            padding-bottom: 48px;
        }
        .footer-logo {
            margin-bottom: 18px;
        }
        .footer-logo .logo-text {
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            max-width: 340px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            transition: all 0.2s ease;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .site-footer ul {
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .site-footer ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023.98px) {
            .nav-desktop-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                max-width: 360px;
                background: var(--bg);
                padding: 96px 40px 48px;
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                box-shadow: -8px 0 32px rgba(16, 30, 27, 0.1);
                z-index: 99;
                overflow-y: auto;
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .nav-menu {
                flex-direction: column;
                gap: 8px;
                width: 100%;
                margin-bottom: 32px;
            }
            .nav-menu>li>a {
                font-size: 22px;
                font-weight: 600;
                padding: 10px 0;
                display: block;
                color: var(--ink);
            }
            .nav-menu>li>a::after {
                display: none;
            }
            .nav-menu>li>a:hover,
            .nav-menu>li>a.active {
                color: var(--accent);
            }
            .nav-mobile-footer {
                display: block;
                width: 100%;
                padding-top: 24px;
                border-top: 1px solid var(--line);
            }
            .nav-mobile-footer .btn {
                width: 100%;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-right {
                width: 100%;
            }
            .cta-right .btn {
                flex: 1;
            }
            .footer-grid .cell {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 639.98px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                height: 64px;
            }
            .logo-text {
                font-size: 17px;
            }
            .article-hero {
                padding: 108px 0 44px;
            }
            .article-hero::before {
                width: 100%;
                opacity: 0.05;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-meta {
                gap: 14px;
                flex-direction: column;
                align-items: flex-start;
            }
            .article-meta .meta-item {
                font-size: 12px;
            }
            .article-body {
                padding: 48px 0 32px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 22px;
                margin-top: 32px;
            }
            .article-tags {
                padding-bottom: 40px;
            }
            .related-posts {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
                margin-bottom: 28px;
            }
            .cta-band {
                padding: 56px 0;
            }
            .cta-right {
                flex-direction: column;
                gap: 12px;
            }
            .cta-right .btn {
                width: 100%;
                min-height: 48px;
            }
            .back-wrap {
                padding: 32px 0 48px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
        }

        /* ===== Reduced Motion ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }