/* ============================================================
   数智长征路 · 青春闽湘行 —— 实践宣传页
   红色主题 · 仿“你好，泉州”版式结构
   ============================================================ */

:root {
  --red: #8f1b22;
  --red-2: #a8262e;
  --red-dark: #5e1216;
  --red-deep: #37090d;
  --gold: #d9a441;
  --gold-light: #eccd8b;
  --cream: #f7f1e6;
  --cream-2: #f1e7d4;
  --ink: #2b1a12;
  --muted: #7a6455;
  --line: rgba(143, 27, 34, 0.14);
  --shadow: 0 10px 30px rgba(55, 9, 13, 0.18);
  --shadow-sm: 0 4px 14px rgba(55, 9, 13, 0.12);
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --nav-h: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.75;
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

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

a { color: inherit; text-decoration: none; }

::selection { background: var(--red); color: #fff; }

/* ---------------- 顶部导航 ---------------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4vw;
  transition: background 0.35s ease, box-shadow 0.35s ease, height 0.35s ease;
}

.nav .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
  transition: color 0.35s ease, text-shadow 0.35s ease;
}

.nav .logo .star {
  color: var(--gold-light);
  font-size: 1.25rem;
}

.nav .menu {
  display: flex;
  gap: 4px;
}

.nav .menu a {
  position: relative;
  padding: 8px 14px;
  font-size: 0.92rem;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
  border-radius: 999px;
  transition: all 0.3s ease;
}

.nav .menu a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--gold-light);
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav .menu a:hover::after,
.nav .menu a.active::after { width: 55%; }

.nav.scrolled {
  background: rgba(255, 252, 245, 0.96);
  box-shadow: 0 2px 18px rgba(55, 9, 13, 0.14);
  height: 56px;
}

.nav.scrolled .logo {
  color: var(--red);
  text-shadow: none;
}

.nav.scrolled .menu a {
  color: var(--ink);
  text-shadow: none;
}

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

/* ---------------- 英雄区 ---------------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.hero .hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(31, 6, 8, 0.55) 0%, rgba(31, 6, 8, 0.42) 45%, rgba(31, 6, 8, 0.78) 100%),
    var(--hero-img, url("../images/tongdao/tongdao-31.jpg")) center 30% / cover no-repeat;
  transform: scale(1.05);
}

.hero .hero-inner {
  position: relative;
  z-index: 2;
  padding: 0 6vw;
}

.hero .kicker {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  letter-spacing: 6px;
  color: var(--gold-light);
  margin-bottom: 26px;
}

.hero .kicker::before,
.hero .kicker::after {
  content: "";
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-light));
}

.hero .kicker::after {
  background: linear-gradient(90deg, var(--gold-light), transparent);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.hero h1 .line { display: block; }

.hero h1 .line1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  letter-spacing: 0.16em;
  line-height: 1.2;
}

.hero h1 .line2 {
  margin-top: 0.3em;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  font-weight: 700;
  letter-spacing: 0.72em;
  text-indent: 0.72em;
  color: var(--gold-light);
}

.hero .slogan {
  margin-top: 22px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  letter-spacing: 0.22em;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero .slogan em {
  font-style: normal;
  color: var(--gold-light);
}

.hero .route {
  margin-top: 30px;
  font-size: 0.95rem;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.85);
}

.hero .route .sep { color: var(--gold); padding: 0 8px; }

/* 印章 */
.hero .seal {
  position: absolute;
  top: 18vh;
  right: 7vw;
  z-index: 2;
  width: 96px;
  height: 96px;
  border: 2px solid rgba(236, 205, 139, 0.9);
  outline: 1px solid rgba(236, 205, 139, 0.5);
  outline-offset: -6px;
  background: rgba(143, 27, 34, 0.88);
  color: #f6e7c8;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  line-height: 1.55;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-7deg);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

/* 主按钮 */
.hero-cta {
  display: inline-flex;
  margin-top: 36px;
  padding: 13px 44px;
  border: 1px solid var(--gold-light);
  color: var(--gold-light);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 6px;
  text-indent: 6px;
  border-radius: 999px;
  transition: all 0.3s ease;
}

.hero-cta:hover {
  background: var(--gold-light);
  color: var(--red-dark);
  box-shadow: 0 6px 20px rgba(217, 164, 65, 0.35);
}

.hero .scroll-hint:hover { color: var(--gold-light); }

.hero-stats .num b { font-weight: inherit; }

/* 数据条 */
.hero-stats {
  position: relative;
  z-index: 2;
  margin-top: 56px;
  display: flex;
  justify-content: center;
  gap: clamp(18px, 5vw, 64px);
  flex-wrap: wrap;
}

.hero-stats .stat { text-align: center; }

.hero-stats .num {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  font-weight: 800;
  color: var(--gold-light);
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
}

.hero-stats .label {
  font-size: 0.82rem;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.88);
  margin-top: 4px;
}

.hero .scroll-hint {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.78rem;
  letter-spacing: 3px;
  animation: float 2.4s ease-in-out infinite;
}

.hero .scroll-hint .chev {
  width: 12px;
  height: 12px;
  border-right: 1.5px solid var(--gold-light);
  border-bottom: 1.5px solid var(--gold-light);
  transform: rotate(45deg);
}

@keyframes float {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ---------------- 通用版块 ---------------- */

.section { padding: 96px 4vw 88px; max-width: 1280px; margin: 0 auto; }

.section.alt { background: transparent; }

.section-head { text-align: center; margin-bottom: 52px; }

.section-head .en {
  font-size: 0.78rem;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  letter-spacing: 0.18em;
  color: var(--red);
  position: relative;
  display: inline-block;
  padding-bottom: 16px;
}

.section-head h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  border-radius: 2px;
}

.section-head .sub {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 1px;
}

.section-head .sec-no {
  display: inline-block;
  width: 42px;
  height: 42px;
  line-height: 42px;
  margin-bottom: 14px;
  background: var(--red);
  color: #f7ead0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0;
  border-radius: 8px;
  transform: rotate(-4deg);
  box-shadow: 0 6px 16px rgba(143, 27, 34, 0.3);
}

/* ---------------- 标签按钮 ---------------- */

.tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.tabs .tab-btn {
  padding: 10px 26px;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 3px;
  color: var(--red);
  background: #fff;
  border: 1px solid rgba(143, 27, 34, 0.35);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tabs .tab-btn:hover { border-color: var(--red); box-shadow: var(--shadow-sm); }

.tabs .tab-btn.active {
  background: linear-gradient(135deg, var(--red) 0%, var(--red-2) 100%);
  color: #fff;
  border-color: var(--red);
  box-shadow: 0 6px 18px rgba(143, 27, 34, 0.35);
}

.tab-panel { display: none; }

.tab-panel.active { display: block; animation: fadeUp 0.5s ease both; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-intro {
  max-width: 860px;
  margin: 0 auto 40px;
  text-align: center;
  color: #5c4a3d;
  font-size: 0.98rem;
  letter-spacing: 0.5px;
  padding: 0 12px;
}

.hint {
  margin-top: 34px;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 3px;
}

/* ---------------- 卡片网格 ---------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 22px;
}

.card {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

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

.card .thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--cream-2);
}

.card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card:hover .thumb img { transform: scale(1.08); }

.card .thumb .zoom-hint {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(55, 9, 13, 0.55);
  color: #fff;
  font-size: 1rem;
  line-height: 30px;
  text-align: center;
  opacity: 0;
  transform: scale(0.6);
  transition: all 0.3s ease;
}

.card:hover .thumb .zoom-hint { opacity: 1; transform: scale(1); }

.card .cap {
  padding: 14px 16px 16px;
  border-top: 3px solid var(--gold);
}

.card .cap h3 {
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: 1px;
  color: var(--red-dark);
}

.card .cap p {
  margin-top: 6px;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.6;
}

/* 数智赋能：图标卡 */
.card.icon-card { cursor: default; padding: 30px 22px 26px; text-align: center; }

.card.icon-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 50% -20%, rgba(217, 164, 65, 0.18), transparent 60%),
    linear-gradient(160deg, #fffdf8 0%, #fdf3e3 100%);
  z-index: 0;
}

.card.icon-card:hover::before { filter: brightness(0.985); }

.card.icon-card > * { position: relative; z-index: 1; }

.card.icon-card .ico {
  width: 62px;
  height: 62px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-2) 100%);
  box-shadow: 0 8px 18px rgba(143, 27, 34, 0.3);
}

.card.icon-card .ico svg { width: 28px; height: 28px; stroke: var(--gold-light); }

.card.icon-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 2px;
  color: var(--red-dark);
}

.card.icon-card p { margin-top: 8px; font-size: 0.84rem; color: var(--muted); }

/* ---------------- 光影长廊 · 轮播 ---------------- */

.gallery-wrap { background: linear-gradient(180deg, #fffaf1 0%, var(--cream) 100%); }

.carousel { margin-top: 8px; }

.car-viewport {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #2b0a0d;
  box-shadow: var(--shadow);
}

.car-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
}

.car-slide {
  position: relative;
  flex: 0 0 100%;
  height: clamp(240px, 44vw, 470px);
  cursor: zoom-in;
}

.car-slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.car-slide figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px 20px 14px;
  background: linear-gradient(180deg, transparent, rgba(20, 4, 6, 0.8));
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: 3px;
}

.car-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: rgba(20, 4, 6, 0.45);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
  z-index: 2;
}

.car-btn:hover { background: var(--red); transform: translateY(-50%) scale(1.08); }

.car-prev { left: 14px; }

.car-next { right: 14px; }

.car-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: 16px;
}

.car-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 60vw;
}

.car-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(143, 27, 34, 0.25);
  cursor: pointer;
  transition: all 0.3s ease;
}

.car-dots button.active {
  width: 22px;
  border-radius: 5px;
  background: var(--red);
}

.car-count {
  font-size: 0.82rem;
  letter-spacing: 2px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.car-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gold) transparent;
}

.car-thumbs button {
  flex: 0 0 84px;
  height: 58px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.car-thumbs button img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.car-thumbs button.active {
  border-color: var(--red);
  opacity: 1;
  box-shadow: 0 4px 14px rgba(143, 27, 34, 0.3);
}

/* 实践视频 */
.video-block {
  max-width: 880px;
  margin: 0 auto 30px;
  border-radius: 14px;
  overflow: hidden;
  background: #2b0a0d;
  box-shadow: var(--shadow);
}

.video-block video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.video-cap {
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--red-dark), var(--red-deep));
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 3px;
  text-align: center;
}

/* ---------------- 实地探访 ---------------- */

.visit { display: grid; grid-template-columns: 1fr 1.15fr; gap: 0; margin-bottom: 34px; background: #fff; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-sm); }

.visit:nth-child(even) { grid-template-columns: 1.15fr 1fr; }

.visit:nth-child(even) .visit-media { order: 2; }

.visit .visit-media { position: relative; min-height: 300px; overflow: hidden; }

.visit .visit-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.visit:hover .visit-media img { transform: scale(1.06); }

.visit .visit-media .tag {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
  padding: 6px 16px;
  background: var(--red);
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 3px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.visit .visit-body { padding: 38px 40px; display: flex; flex-direction: column; justify-content: center; }

.visit .visit-body .where {
  color: var(--gold);
  font-size: 0.82rem;
  letter-spacing: 4px;
}

.visit .visit-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  letter-spacing: 3px;
  color: var(--red-dark);
  margin: 10px 0 4px;
}

.visit .visit-body .date { color: var(--muted); font-size: 0.85rem; letter-spacing: 1px; }

.visit .visit-body p {
  margin-top: 16px;
  color: #5c4a3d;
  font-size: 0.95rem;
  line-height: 1.95;
}

.report-link {
  margin-top: 30px;
  text-align: center;
}

.report-link .report-title {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 4px;
  margin-bottom: 18px;
}

.report-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.report-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 26px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  letter-spacing: 2px;
  color: #fff;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-2) 100%);
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(143, 27, 34, 0.3);
  transition: all 0.3s ease;
}

.report-link a:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(143, 27, 34, 0.45); }

.report-link a .arrow { font-size: 1.2rem; line-height: 1; }

/* ---------------- 青春感悟 ---------------- */

.voices { background: linear-gradient(180deg, var(--cream) 0%, #fbf4e6 100%); }

.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 24px;
}

.quote {
  position: relative;
  padding: 34px 30px 30px;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--gold);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.quote:hover { transform: translateY(-5px); box-shadow: var(--shadow); }

.quote .mark {
  position: absolute;
  top: 12px;
  right: 22px;
  font-family: var(--font-display);
  font-size: 4.2rem;
  line-height: 1;
  color: rgba(143, 27, 34, 0.1);
  pointer-events: none;
}

.quote p {
  font-family: var(--font-display);
  color: #4a3327;
  font-size: 0.96rem;
  line-height: 1.95;
  letter-spacing: 0.5px;
}

.quote .who {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.quote .who .avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-2) 100%);
  color: var(--gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.quote .who .name { font-size: 0.92rem; font-weight: 600; color: var(--red-dark); }

.quote .who .role { font-size: 0.78rem; color: var(--muted); letter-spacing: 1px; }

/* ---------------- 结语横幅 ---------------- */

.outro {
  position: relative;
  padding: 110px 6vw;
  text-align: center;
  color: #fff;
  background:
    radial-gradient(90% 140% at 50% 0%, rgba(217, 164, 65, 0.16), transparent 55%),
    linear-gradient(180deg, var(--red-dark) 0%, var(--red-deep) 100%);
  overflow: hidden;
}

.outro::before,
.outro::after {
  content: "★";
  position: absolute;
  font-size: 1rem;
  color: rgba(236, 205, 139, 0.25);
}

.outro::before { top: 42px; left: 8vw; }

.outro::after { top: 42px; right: 8vw; }

.outro .line {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.6vw, 1.55rem);
  letter-spacing: 0.16em;
  line-height: 2.2;
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.outro .line.visible { opacity: 1; transform: translateY(0); }

.outro .line em {
  font-style: normal;
  color: var(--gold-light);
  padding: 0 4px;
}

.outro .line + .line { margin-top: 18px; }

.outro .line.sep { margin-top: 30px; font-size: 0.9rem; letter-spacing: 8px; color: var(--gold); }

/* ---------------- 页脚 ---------------- */

.footer {
  background: #2b0a0d;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding: 54px 6vw 44px;
}

.footer .team {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 2px;
  color: #fff;
}

.footer .meta {
  margin-top: 14px;
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.6);
}

.footer .meta span { padding: 0 10px; }

.footer .copy {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------------- 路线带 ---------------- */

.route-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 4vw, 48px);
  padding: 34px 4vw;
  background:
    radial-gradient(80% 160% at 50% 0%, rgba(217, 164, 65, 0.14), transparent 60%),
    linear-gradient(180deg, var(--red-dark), var(--red-deep));
  color: #fff;
}

.route-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  text-align: center;
  min-width: 130px;
}

.route-item b {
  font-family: var(--font-display);
  font-size: 1.18rem;
  letter-spacing: 5px;
  color: var(--gold-light);
}

.route-item i {
  font-style: normal;
  font-size: 0.78rem;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.72);
}

.route-line {
  position: relative;
  flex: 1;
  max-width: 150px;
  min-width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(236, 205, 139, 0.65), transparent);
}

.route-line::after {
  content: "";
  position: absolute;
  top: -4px;
  right: 0;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid var(--gold-light);
  border-right: 1.5px solid var(--gold-light);
  transform: rotate(45deg);
}

/* ---------------- 回到顶部 ---------------- */

.to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 85;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(143, 27, 34, 0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
}

.to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top:hover { background: var(--red-2); }

section[id] { scroll-margin-top: 72px; }

/* ---------------- 灯箱 ---------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(16, 3, 5, 0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5vh 5vw;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox.open { opacity: 1; pointer-events: auto; }

.lightbox .lb-media {
  max-width: min(1100px, 92vw);
  max-height: 76vh;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.6);
}

.lightbox .lb-media img,
.lightbox .lb-media video {
  display: block;
  max-width: 100%;
  max-height: 76vh;
  object-fit: contain;
}

.lightbox .lb-caption {
  margin-top: 16px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 3px;
  text-align: center;
}

.lightbox .lb-count {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  letter-spacing: 3px;
}

.lightbox .lb-close,
.lightbox .lb-prev,
.lightbox .lb-next {
  position: absolute;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.25s ease, transform 0.25s ease;
  z-index: 2;
}

.lightbox .lb-close:hover,
.lightbox .lb-prev:hover,
.lightbox .lb-next:hover { background: var(--red); transform: scale(1.08); }

.lightbox .lb-close {
  top: 20px;
  right: 26px;
  width: 44px;
  height: 44px;
  font-size: 1.5rem;
  line-height: 1;
}

.lightbox .lb-prev,
.lightbox .lb-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 1.7rem;
  line-height: 1;
}

.lightbox .lb-prev:hover,
.lightbox .lb-next:hover { transform: translateY(-50%) scale(1.08); }

.lightbox .lb-prev { left: 26px; }

.lightbox .lb-next { right: 26px; }

/* ---------------- 入场动效 ---------------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------------- 响应式 ---------------- */

@media (max-width: 900px) {
  .visit,
  .visit:nth-child(even) { grid-template-columns: 1fr; }

  .visit:nth-child(even) .visit-media { order: 0; }

  .visit .visit-media { min-height: 240px; }

  .visit .visit-body { padding: 28px 26px; }

  .nav { padding: 0 16px; }

  .nav .menu a { padding: 8px 9px; font-size: 0.84rem; letter-spacing: 0; }

  .section { padding: 72px 5vw 64px; }
}

@media (max-width: 560px) {
  .nav .logo span.word { display: none; }

  .card-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  .card .cap { padding: 10px 12px 12px; }

  .card .cap h3 { font-size: 0.92rem; letter-spacing: 0; }

  .card .cap p { font-size: 0.76rem; }

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

  .lightbox .lb-prev { left: 8px; }

  .lightbox .lb-next { right: 8px; }
}

/* ---------------- 新组件响应式 ---------------- */

@media (max-width: 900px) {
  .hero .seal { display: none; }

  .route-strip { gap: 10px; }

  .route-item { min-width: 0; }

  .route-item b { font-size: 1rem; letter-spacing: 2px; }

  .route-item i { font-size: 0.7rem; letter-spacing: 1px; }

  .car-slide { height: clamp(200px, 46vw, 340px); }
}

@media (max-width: 560px) {
  .car-slide figcaption { font-size: 0.84rem; letter-spacing: 2px; padding: 22px 14px 10px; }

  .car-btn { width: 38px; height: 38px; font-size: 1.3rem; }

  .car-prev { left: 8px; }

  .car-next { right: 8px; }

  .car-dots { max-width: 70vw; }

  .route-strip { flex-direction: column; gap: 18px; padding: 28px 4vw; }

  .route-line { display: none; }

  .hero-cta { padding: 11px 30px; letter-spacing: 4px; text-indent: 4px; font-size: 0.92rem; }

  .to-top { right: 14px; bottom: 18px; width: 42px; height: 42px; }
}

/* ---------------- 手机端防重叠修正 ---------------- */

@media (max-width: 900px) {
  /* 英雄区：内容超过一屏时从上往下排，避免居中裁剪与底部重叠 */
  .hero {
    justify-content: flex-start;
    padding: 116px 0 64px;
  }

  .hero .kicker {
    font-size: 0.82rem;
    letter-spacing: 2px;
    margin-bottom: 18px;
  }

  .hero h1 .line1 {
    font-size: clamp(2.3rem, 12vw, 3.4rem);
    letter-spacing: 0.08em;
  }

  .hero h1 .line2 {
    font-size: 1.05rem;
    letter-spacing: 0.42em;
    text-indent: 0.42em;
  }

  .hero .slogan { margin-top: 16px; font-size: 1.02rem; letter-spacing: 0.12em; }

  .hero .route { margin-top: 20px; font-size: 0.82rem; letter-spacing: 1px; }

  .hero-cta { margin-top: 26px; }

  .hero-stats { margin-top: 40px; gap: 20px 26px; }

  .hero .scroll-hint { display: none; }
}

@media (max-width: 560px) {
  .hero .kicker::before,
  .hero .kicker::after { display: none; }

  /* 顶栏：放不下时换行，不溢出、不遮内容 */
  .nav {
    height: auto;
    min-height: 54px;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 12px;
  }

  .nav.scrolled { height: auto; }

  .nav .menu {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2px;
  }

  .nav .menu a { padding: 6px 10px; font-size: 0.8rem; }

  /* 间距与字号 */
  .section { padding: 56px 5vw 48px; }

  .section-head { margin-bottom: 36px; }

  .tabs { gap: 8px; margin-bottom: 28px; }

  .tabs .tab-btn { padding: 8px 16px; font-size: 0.9rem; letter-spacing: 1px; }

  .panel-intro { font-size: 0.92rem; margin-bottom: 28px; }

  .hero-stats .num { font-size: 1.5rem; }

  .hero-stats .label { font-size: 0.72rem; letter-spacing: 1px; }

  .report-links { gap: 10px; }

  .report-link a { padding: 9px 18px; font-size: 0.85rem; letter-spacing: 1px; }

  .outro { padding: 70px 6vw 60px; }

  .outro .line { letter-spacing: 0.08em; line-height: 2; }

  .visit .visit-body p { font-size: 0.9rem; }

  .video-cap { font-size: 0.82rem; letter-spacing: 2px; }
}