/* ============================================================
   BAID Dermatology Clinic — 官网设计系统
   视觉方向：浅薄荷绿 + 白 + 高级灰 ｜ 专业 / 极简 / 清爽 / 医疗科技感 / 高级
   ============================================================ */

:root {
  /* 品牌色 · Mint */
  --mint-50:  #F4FBF8;
  --mint-100: #E6F6F0;
  --mint-150: #D7F0E6;
  --mint-200: #C2E9DB;
  --mint-300: #9BDCC6;
  --brand:    #35B99C;          /* 主色 mint-green */
  --brand-2:  #7FD5BC;
  --brand-deep:#15937B;
  --brand-dark:#0E5F50;

  /* 高级灰 / 墨色 */
  --ink:      #18312B;
  --ink-2:    #2E4A42;
  --text:     #374A45;
  --text-2:   #6A7C76;
  --text-3:   #93A39D;
  --line:     #E4EFEA;
  --line-2:   #D6E7E0;

  /* 中性 */
  --white:    #FFFFFF;
  --bg:       #FBFDFC;

  /* 字体 */
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Helvetica Neue", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;

  /* 圆角 / 阴影 */
  --r-lg: 26px;
  --r-md: 18px;
  --r-sm: 12px;
  --shadow-1: 0 6px 24px rgba(24, 71, 59, .06);
  --shadow-2: 0 16px 48px rgba(24, 71, 59, .10);
  --shadow-mint: 0 10px 30px rgba(53, 185, 156, .22);

  --container: 1180px;
  --nav-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-cn);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 15.5px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }
::selection { background: var(--mint-200); color: var(--ink); }

h1, h2, h3, h4 { color: var(--ink); font-weight: 600; line-height: 1.35; letter-spacing: .01em; }

.container { width: min(var(--container), 92%); margin-inline: auto; }

.en { font-family: var(--font-en); }

/* ---------- 顶部小进度条(装饰) ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; background: transparent; z-index: 99; pointer-events: none; }
.scroll-progress > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--brand-2), var(--brand-deep)); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(230, 239, 234, .9);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--brand-2), var(--brand-deep));
  display: grid; place-items: center; color: #fff; box-shadow: var(--shadow-mint); }
.brand-text { line-height: 1.2; }
.brand-text b { display: block; font-family: var(--font-en); font-size: 21px; font-weight: 700; letter-spacing: .14em; color: var(--ink); }
.brand-text b em { font-style: normal; color: var(--brand-deep); }
.brand-text span { display: block; font-size: 10.5px; letter-spacing: .22em; color: var(--text-2); font-family: var(--font-en); }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  position: relative; padding: 8px 13px; font-size: 14.5px; color: var(--ink-2);
  border-radius: 10px; transition: color .2s, background .2s; white-space: nowrap;
}
.main-nav a:hover { color: var(--brand-deep); background: var(--mint-100); }
.main-nav a.active { color: var(--brand-deep); font-weight: 600; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 3px; height: 2px;
  background: var(--brand); border-radius: 2px;
}

.nav-right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }

/* 语言切换 */
.lang { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 7px; padding: 8px 13px; font-size: 13.5px;
  color: var(--ink-2); border: 1px solid var(--line-2); border-radius: 999px;
  background: #fff; transition: all .2s;
}
.lang-btn:hover { border-color: var(--brand); color: var(--brand-deep); }
.lang-btn .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.lang-panel {
  position: absolute; right: 0; top: calc(100% + 10px); width: 216px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm);
  box-shadow: var(--shadow-2); padding: 8px; display: none; z-index: 80;
}
.lang.open .lang-panel { display: block; animation: pop .18s ease; }
.lang-item {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  width: 100%; padding: 10px 12px; border-radius: 9px; font-size: 14px; color: var(--ink-2); text-align: left;
  transition: background .15s;
}
.lang-item:hover { background: var(--mint-100); }
.lang-item .en { color: var(--text-3); font-size: 12px; letter-spacing: .05em; }
.lang-item.on { background: var(--mint-100); color: var(--brand-deep); font-weight: 600; }
.lang-item .soon { font-size: 10.5px; color: var(--text-3); border: 1px solid var(--line-2); padding: 1px 7px; border-radius: 99px; }

/* CTA */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  transition: all .22s ease; white-space: nowrap; line-height: 1.4;
}
.btn-mint { background: linear-gradient(135deg, var(--brand), var(--brand-deep)); color: #fff; box-shadow: var(--shadow-mint); }
.btn-mint:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(53, 185, 156, .3); }
.btn-ghost { border: 1.5px solid var(--mint-300); color: var(--brand-deep); background: #fff; }
.btn-ghost:hover { border-color: var(--brand); background: var(--mint-50); }
.btn-light { background: #fff; color: var(--brand-deep); box-shadow: var(--shadow-1); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-lg { padding: 15px 30px; font-size: 15.5px; }

/* burger */
.burger { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.burger i { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }
.burger.open i:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open i:nth-child(2) { opacity: 0; }
.burger.open i:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 通用 Section ---------- */
.section { padding: 92px 0; position: relative; }
.section.tight { padding: 64px 0; }
.section-alt { background: linear-gradient(180deg, var(--mint-50), #fff 60%); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 11.5px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--brand-deep); font-weight: 600; margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 22px; height: 1.5px; background: var(--brand); }
.eyebrow.center::after { content: ""; width: 22px; height: 1.5px; background: var(--brand); }

.section-head { max-width: 680px; margin-bottom: 52px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 600; letter-spacing: .02em; margin-bottom: 14px; }
.section-head h2 em { font-style: normal; color: var(--brand-deep); position: relative; }
.section-head p { color: var(--text-2); font-size: 15.5px; }
.section-head .en-sub { font-family: var(--font-en); color: var(--text-3); font-size: 13px; letter-spacing: .1em; margin-top: 8px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 0 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(820px 480px at 82% -10%, rgba(53,185,156,.14), transparent 62%),
    radial-gradient(600px 420px at -8% 8%, rgba(127,213,188,.16), transparent 60%),
    linear-gradient(180deg, #F7FCFA 0%, #FFFFFF 100%);
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; padding: 78px 0 64px; }

.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px 7px 9px;
  border: 1px solid var(--mint-200); background: #fff; border-radius: 999px;
  font-family: var(--font-en); font-size: 12px; letter-spacing: .12em; color: var(--ink-2);
  box-shadow: var(--shadow-1); margin-bottom: 26px;
}
.hero-kicker .flag { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--mint-100); color: var(--brand-deep); font-size: 12px; }

.hero h1 { font-size: clamp(30px, 3.9vw, 46px); font-weight: 600; line-height: 1.32; letter-spacing: .015em; color: var(--ink); }
.hero h1 em { font-style: normal; color: var(--brand-deep); }
.hero-baid {
  margin-top: 20px; font-family: var(--font-en); font-size: clamp(13px, 1.4vw, 15.5px);
  letter-spacing: .34em; color: var(--brand-deep); font-weight: 600; text-transform: uppercase;
}
.hero-sub { margin-top: 22px; color: var(--text-2); font-size: 16px; max-width: 540px; }
.hero-pillars { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-pillars li {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); color: var(--ink-2); font-size: 14px; box-shadow: var(--shadow-1);
}
.hero-pillars .ic { color: var(--brand-deep); }
.hero-cta { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-note { margin-top: 22px; font-size: 12.5px; color: var(--text-3); display: flex; align-items: center; gap: 7px; }
.hero-note svg { flex-shrink: 0; }

/* hero 右侧视觉 */
.hero-art { position: relative; min-height: 460px; }
.hero-art .ring {
  position: absolute; inset: 6% 0 0 8%; aspect-ratio: 1; border-radius: 50%;
  background: linear-gradient(160deg, var(--mint-100), var(--mint-50) 55%, #fff);
  border: 1px solid var(--mint-150);
  display: grid; place-items: center;
}
.hero-art .ring::before {
  content: ""; position: absolute; inset: 13%; border-radius: 50%; border: 1.5px dashed var(--mint-300);
  animation: spin 46s linear infinite;
}
.hero-art .core {
  width: 46%; aspect-ratio: 1; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-2), var(--brand-deep));
  display: grid; place-items: center; color: #fff; box-shadow: var(--shadow-mint);
  font-family: var(--font-en); font-weight: 700; font-size: clamp(26px, 3.4vw, 40px); letter-spacing: .06em;
}
.hero-art .core small { display: block; font-size: 9px; letter-spacing: .34em; font-weight: 500; opacity: .92; margin-top: 2px; }
.orbit-word { position: absolute; font-family: var(--font-en); font-size: 12.5px; letter-spacing: .14em; color: var(--text-2); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; box-shadow: var(--shadow-1); }

.chip {
  position: absolute; background: #fff; border-radius: 16px; border: 1px solid var(--line);
  box-shadow: var(--shadow-2); padding: 14px 16px; display: flex; gap: 12px; align-items: center; z-index: 2;
}
.chip .ic-b { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; flex-shrink: 0; background: var(--mint-100); color: var(--brand-deep); }
.chip b { display: block; font-size: 13.5px; color: var(--ink); font-weight: 600; }
.chip span { font-size: 11.5px; color: var(--text-2); }
.chip.c1 { top: 9%; right: -2%; animation: floatY 5.5s ease-in-out infinite; }
.chip.c2 { bottom: 16%; left: -3%; animation: floatY 6.5s ease-in-out 1s infinite; }
.chip.c3 { top: 47%; right: -6%; animation: floatY 7s ease-in-out .5s infinite; }

/* marquee trust bar */
.trustbar { border-block: 1px solid var(--line); background: rgba(255,255,255,.7); padding: 18px 0; overflow: hidden; }
.trustbar ul { display: flex; gap: 56px; width: max-content; animation: marquee 30s linear infinite; }
.trustbar li { display: flex; align-items: center; gap: 12px; color: var(--text-2); font-size: 14px; white-space: nowrap; }
.trustbar li .ic { color: var(--brand-deep); }
.trustbar li b { color: var(--ink-2); font-weight: 600; }

/* ---------- 卡片通用 ---------- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); transition: all .3s ease; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: var(--mint-200); }

.grid { display: grid; gap: 26px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

/* 图标方块 */
.ic-b { width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center; background: var(--mint-100); color: var(--brand-deep); flex-shrink: 0; }

/* ---------- 优势（为什么选择） ---------- */
.adv-item { padding: 34px 30px; }
.adv-item h3 { font-size: 18.5px; margin: 20px 0 10px; }
.adv-item p { color: var(--text-2); font-size: 14.5px; }
.adv-item .tag-line { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }
.adv-item .tag-line::after { content: ""; height: 1px; flex: 1; background: var(--line); }

/* ---------- 服务卡片 ---------- */
.service-card { padding: 26px; display: flex; flex-direction: column; }
.service-card .ph { height: 168px; border-radius: 16px; margin-bottom: 20px; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; display: flex; align-items: baseline; gap: 8px; }
.service-card h3 .en { font-size: 12px; color: var(--text-3); letter-spacing: .08em; }
.service-card p { font-size: 14px; color: var(--text-2); flex: 1; }
.service-card .go { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--brand-deep); font-weight: 600; }
.service-card .go svg { transition: transform .2s; }
.service-card:hover .go svg { transform: translateX(4px); }

/* ---------- 占位视觉块 ---------- */
.ph {
  position: relative; overflow: hidden; display: flex; flex-direction: column; gap: 8px;
  align-items: center; justify-content: center; color: var(--text-3);
  background:
    radial-gradient(200px 120px at 80% 10%, rgba(127,213,188,.35), transparent 65%),
    radial-gradient(180px 140px at 12% 90%, rgba(53,185,156,.22), transparent 60%),
    linear-gradient(160deg, var(--mint-100), var(--mint-50));
  border: 1px dashed var(--mint-300);
}
.ph svg { color: var(--brand-2); }
.ph span { font-size: 12px; letter-spacing: .06em; }
.ph::after {
  content: "示意占位 · 待替换为实拍/素材"; position: absolute; top: 8px; right: 8px;
  font-size: 10px; color: var(--brand-deep); background: rgba(255,255,255,.75); padding: 2px 8px; border-radius: 99px; letter-spacing: .02em;
}
.ph-round { border-radius: 50% !important; }

/* ---------- 院长卡片 ---------- */
.doctor-card { padding: 30px; text-align: left; display: flex; flex-direction: column; }
.doctor-ava { width: 100%; aspect-ratio: 4/4.4; border-radius: 18px; margin-bottom: 22px; }
.doctor-card .role { font-size: 12px; color: var(--brand-deep); letter-spacing: .18em; font-family: var(--font-en); text-transform: uppercase; margin-bottom: 6px; }
.doctor-card h3 { font-size: 21px; display: flex; align-items: baseline; gap: 8px; }
.doctor-card h3 small { font-size: 13px; color: var(--text-3); font-weight: 400; }
.doctor-card .spec { margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.doctor-card .spec li { font-size: 12.5px; background: var(--mint-100); color: var(--brand-deep); padding: 5px 12px; border-radius: 99px; }
.doctor-card .bio { margin-top: 14px; font-size: 13.5px; color: var(--text-2); flex: 1; }

/* ---------- 环境画廊 ---------- */
.gallery { display: grid; grid-template-columns: 1.25fr 1fr 1fr; grid-auto-rows: 210px; gap: 18px; }
.gallery .ph { border-radius: var(--r-md); height: 100%; min-height: 0; }
.gallery .ph:nth-child(1) { grid-row: span 2; }
.gallery .ph:nth-child(4) { grid-column: span 2; }

/* ---------- CTA 横幅 ---------- */
.cta-band { position: relative; overflow: hidden; border-radius: var(--r-lg); padding: 60px 56px; margin: 20px 0; background: linear-gradient(120deg, var(--brand-dark), var(--brand-deep) 55%, var(--brand)); color: #fff; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(420px 260px at 88% 20%, rgba(255,255,255,.16), transparent 60%); }
.cta-band .inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,.88); font-size: 15px; max-width: 560px; }
.cta-band .btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页面头部（子页） ---------- */
.page-hero { position: relative; overflow: hidden; padding: 76px 0 66px; text-align: center; }
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 78% 0%, rgba(53,185,156,.16), transparent 62%),
    radial-gradient(520px 320px at 12% 100%, rgba(127,213,188,.14), transparent 60%),
    linear-gradient(180deg, #F6FCFA, #fff);
}
.page-hero > * { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 42px); margin: 6px 0 14px; }
.page-hero h1 em { font-style: normal; color: var(--brand-deep); }
.page-hero .sub { color: var(--text-2); max-width: 620px; margin: 0 auto; }
.crumb { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-3); background: #fff; border: 1px solid var(--line); padding: 6px 16px; border-radius: 999px; }
.crumb a:hover { color: var(--brand-deep); }

/* ---------- 介绍页 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .ph { aspect-ratio: 4/4.6; border-radius: var(--r-lg); }
.split .visual { position: relative; }
.fact-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.fact-chips li { font-size: 13px; color: var(--ink-2); border: 1px solid var(--line-2); background: #fff; border-radius: 999px; padding: 7px 15px; display: inline-flex; align-items: center; gap: 7px; }
.fact-chips .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--brand); }

.values { display: grid; gap: 22px; }
.value-card { padding: 30px; display: flex; gap: 22px; }
.value-card .n { font-family: var(--font-en); font-size: 30px; font-weight: 200; color: var(--mint-300); line-height: 1; }
.value-card h3 { font-size: 18px; margin: 2px 0 8px; }
.value-card p { font-size: 14px; color: var(--text-2); }

/* ---------- 服务分类页 ---------- */
.cat-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: -20px 0 44px; }
.cat-nav a { border: 1px solid var(--line-2); background: #fff; color: var(--ink-2); padding: 9px 18px; border-radius: 999px; font-size: 13.5px; transition: .2s; }
.cat-nav a:hover { border-color: var(--brand); color: var(--brand-deep); }
.cat-nav a.on { background: var(--brand-deep); color: #fff; border-color: var(--brand-deep); }

.cat-block { margin-bottom: 72px; scroll-margin-top: 110px; }
.cat-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.cat-head h2 { font-size: 25px; display: flex; align-items: center; gap: 14px; }
.cat-head h2 .idx { font-family: var(--font-en); font-size: 14px; color: var(--brand-deep); letter-spacing: .2em; background: var(--mint-100); padding: 4px 12px; border-radius: 99px; }
.cat-head p { color: var(--text-2); font-size: 14px; max-width: 460px; text-align: right; }

.project-row { display: flex; align-items: center; gap: 18px; padding: 18px 6px; border-bottom: 1px solid var(--line); transition: background .2s; border-radius: 10px; }
.project-row:hover { background: var(--mint-50); }
.project-row .ph-mini { width: 92px; height: 66px; border-radius: 12px; flex-shrink: 0; }
.project-row .ph-mini svg { width: 24px; }
.project-row h3 { font-size: 16.5px; }
.project-row h3 small { display: block; font-family: var(--font-en); font-size: 11px; color: var(--text-3); letter-spacing: .12em; font-weight: 400; text-transform: uppercase; margin-top: 2px; }
.project-row p { font-size: 13.5px; color: var(--text-2); margin-top: 4px; max-width: 640px; }
.project-row .go { margin-left: auto; color: var(--brand-deep); flex-shrink: 0; }
.project-row a.go:hover { transform: translateX(3px); }

/* ---------- 面包屑 + 详情 ---------- */
.breadcrumb { padding: 22px 0 0; font-size: 13px; color: var(--text-3); }
.breadcrumb a:hover { color: var(--brand-deep); }
.breadcrumb span { color: var(--text-2); }

.detail-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; padding: 44px 0 30px; }
.detail-hero .ph { aspect-ratio: 4/3; border-radius: var(--r-lg); }
.detail-hero h1 { font-size: clamp(26px, 3vw, 36px); margin: 10px 0 14px; }
.detail-hero .en-sub { font-family: var(--font-en); letter-spacing: .22em; font-size: 12px; color: var(--brand-deep); text-transform: uppercase; }
.detail-hero p { color: var(--text-2); }
.key-points { margin-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.key-points li { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; font-size: 13px; color: var(--ink-2); display: flex; gap: 8px; align-items: center; }
.key-points .ic { color: var(--brand-deep); flex-shrink: 0; }

.prose { max-width: 780px; }
.prose h2 { font-size: 21px; margin: 46px 0 16px; padding-left: 16px; border-left: 3px solid var(--brand); }
.prose h3 { font-size: 17px; margin: 26px 0 10px; }
.prose p, .prose li { color: var(--text); font-size: 15px; }
.prose ul { margin: 10px 0 18px; }
.prose ul li { padding-left: 24px; position: relative; margin-bottom: 8px; }
.prose ul li::before { content: ""; position: absolute; left: 4px; top: .68em; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--brand-2), var(--brand)); transform: rotate(45deg); }
.notice { background: var(--mint-50); border: 1px solid var(--mint-200); border-left: 4px solid var(--brand); border-radius: 12px; padding: 16px 20px; font-size: 13.5px; color: var(--ink-2); margin: 22px 0; }
.notice b { color: var(--brand-deep); }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); margin-bottom: 12px; overflow: hidden; }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; text-align: left; font-size: 15.5px; color: var(--ink); font-weight: 600; }
.faq-q .q-mark { color: var(--brand-deep); font-family: var(--font-en); margin-right: 8px; }
.faq-q .arr { transition: transform .25s; color: var(--text-3); flex-shrink: 0; }
.faq-item.open .faq-q .arr { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a > div { padding: 0 24px 20px 46px; color: var(--text-2); font-size: 14.5px; }

/* ---------- 时间线（流程） ---------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 36px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--mint-300), var(--mint-100)); }
.tl-item { position: relative; display: flex; gap: 30px; padding: 0 0 34px 0; }
.tl-dot { position: relative; z-index: 1; width: 74px; height: 74px; border-radius: 50%; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-1); display: grid; place-items: center; flex-shrink: 0; }
.tl-dot .num { position: absolute; top: -4px; right: -4px; background: var(--brand); color: #fff; width: 24px; height: 24px; border-radius: 50%; font-family: var(--font-en); font-size: 12px; display: grid; place-items: center; }
.tl-body { padding-top: 8px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 26px 28px; flex: 1; }
.tl-body h3 { font-size: 19px; margin-bottom: 8px; }
.tl-body h3 .en { font-size: 11.5px; color: var(--text-3); font-weight: 400; letter-spacing: .14em; margin-left: 8px; }
.tl-body p { color: var(--text-2); font-size: 14px; }
.tl-body .tips { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.tl-body .tips li { font-size: 12px; color: var(--brand-deep); background: var(--mint-100); padding: 4px 11px; border-radius: 99px; }

/* ---------- 动态/新闻 ---------- */
.news-filters { display: flex; gap: 9px; flex-wrap: wrap; justify-content: center; margin: -16px 0 46px; }
.news-filters button { border: 1px solid var(--line-2); background: #fff; color: var(--text-2); padding: 8px 16px; border-radius: 999px; font-size: 13px; transition: .2s; }
.news-filters button:hover { color: var(--brand-deep); border-color: var(--brand); }
.news-filters button.on { background: var(--ink); color: #fff; border-color: var(--ink); }

.news-card { overflow: hidden; display: flex; flex-direction: column; }
.news-card .ph { height: 190px; border-radius: 0; border: none; border-bottom: 1px dashed var(--mint-300); }
.news-card .body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-3); margin-bottom: 12px; }
.news-meta .tag { background: var(--mint-100); color: var(--brand-deep); padding: 2px 10px; border-radius: 99px; }
.news-card h3 { font-size: 17.5px; line-height: 1.5; margin-bottom: 10px; transition: color .2s; }
.news-card a:hover h3 { color: var(--brand-deep); }
.news-card p { font-size: 13.5px; color: var(--text-2); flex: 1; }

/* 文章 */
.article-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 52px; padding-top: 10px; }
.article { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: clamp(28px, 4vw, 56px); }
.article h1 { font-size: clamp(25px, 3vw, 34px); line-height: 1.45; margin-bottom: 18px; }
.article .byline { display: flex; align-items: center; gap: 14px; color: var(--text-3); font-size: 13px; padding-bottom: 26px; border-bottom: 1px solid var(--line); margin-bottom: 30px; flex-wrap: wrap; }
.article .byline .tag { background: var(--mint-100); color: var(--brand-deep); padding: 3px 12px; border-radius: 99px; }
.article .lead { font-size: 16.5px; color: var(--ink-2); font-weight: 500; border-left: 3px solid var(--brand); padding-left: 18px; margin-bottom: 30px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 24px; margin-bottom: 20px; }
.side-card h3 { font-size: 15px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.side-card h3 .ic { color: var(--brand-deep); }
.side-list li { padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px; color: var(--ink-2); }
.side-list li:last-child { border: none; }
.side-list a:hover { color: var(--brand-deep); }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.info-list > li { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.info-list .ic-b { width: 46px; height: 46px; border-radius: 13px; }
.info-list h3 { font-size: 15.5px; margin-bottom: 2px; }
.info-list p, .info-list li li { color: var(--text-2); font-size: 14px; }
.info-list .kr { font-family: var(--font-en); color: var(--text-3); font-size: 12.5px; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 34px; box-shadow: var(--shadow-1); }
.form-card h3 { font-size: 20px; margin-bottom: 6px; }
.form-card > p { color: var(--text-2); font-size: 13.5px; margin-bottom: 24px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.f-field label { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 7px; font-weight: 500; }
.f-field label i { color: #E0655C; font-style: normal; }
.f-field input, .f-field select, .f-field textarea {
  width: 100%; border: 1.5px solid var(--line-2); border-radius: 12px; padding: 12px 15px;
  font-size: 14.5px; color: var(--ink); background: #fff; transition: border .2s; outline: none;
}
.f-field input:focus, .f-field select:focus, .f-field textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(53,185,156,.12); }
.f-field textarea { resize: vertical; min-height: 110px; }
.form-tip { display: flex; align-items: flex-start; gap: 8px; font-size: 12.5px; color: var(--text-3); margin: 14px 0 20px; }
.form-tip svg { flex-shrink: 0; margin-top: 2px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0E2B24; color: rgba(255,255,255,.78); margin-top: 30px; }
.footer-main { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 44px; padding: 64px 0 44px; }
.site-footer h4 { color: #fff; font-size: 14px; letter-spacing: .06em; margin-bottom: 18px; font-weight: 600; }
.site-footer .brand-text b { color: #fff; }
.site-footer .brand-text span { color: rgba(255,255,255,.55); }
.footer-about p { font-size: 13.5px; margin-top: 16px; color: rgba(255,255,255,.66); line-height: 1.9; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 13.5px; color: rgba(255,255,255,.72); transition: .2s; display: inline-flex; align-items: center; gap: 6px; }
.footer-links a:hover { color: var(--brand-2); transform: translateX(2px); }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 13px; font-size: 13.5px; color: rgba(255,255,255,.7); }
.footer-contact svg { flex-shrink: 0; margin-top: 4px; color: var(--brand-2); }
.footer-contact .kr { font-size: 12px; color: rgba(255,255,255,.45); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: rgba(255,255,255,.5); }

/* ---------- 官方 Logo（header / footer） ---------- */
.brand-logo { display: block; height: 46px; width: auto; }
.brand-logo-footer { background: #fff; border-radius: 12px; padding: 9px 12px; height: 54px; box-sizing: content-box; }

/* ---------- 页脚微信 + 小程序联系区 ---------- */
.footer-wechat { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 10px 0 40px; border-bottom: 1px solid rgba(255,255,255,.12); }
.wc-card { display: flex; align-items: center; gap: 16px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); border-radius: 14px; padding: 18px 20px; }
.wc-qr { width: 74px; height: 74px; flex-shrink: 0; border-radius: 10px; background: rgba(255,255,255,.06);
  display: grid; place-items: center; text-align: center; color: rgba(255,255,255,.5); }
.wc-qr svg { width: 26px; height: 26px; }
.wc-qr span { font-size: 11px; line-height: 1.15; margin-top: 4px; display: block; color: rgba(255,255,255,.55); }
.wc-info h4 { font-size: 13.5px; margin-bottom: 6px; }
.wc-id { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 10px; }
.wc-id b { color: #fff; letter-spacing: .02em; }
.wc-copy { border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff;
  font-size: 12.5px; padding: 7px 16px; border-radius: 999px; cursor: pointer; transition: .2s; }
.wc-copy:hover { background: var(--brand-2); border-color: var(--brand-2); }
.wc-hint { display: block; font-size: 11.5px; color: rgba(255,255,255,.5); margin-top: 10px; }
.footer-bottom .disc { max-width: 640px; }
.lang-dots { display: flex; gap: 6px; }
.lang-dots span { width: 26px; height: 18px; border-radius: 3px; display: grid; place-items: center; font-size: 10px; background: rgba(255,255,255,.1); color: rgba(255,255,255,.8); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: var(--ink); color: #fff; padding: 13px 22px; border-radius: 999px;
  font-size: 13.5px; opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 200;
  display: flex; align-items: center; gap: 9px; box-shadow: 0 12px 34px rgba(0,0,0,.22);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-2); }

/* ---------- 动效 ---------- */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes pop { from { opacity: 0; transform: translateY(-6px) scale(.98); } to { opacity: 1; transform: none; } }

.reveal { opacity: 1; transform: none; }   /* 无 JS / 老内核：内容直接可见，绝不隐藏 */
html.js-ok .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
html.js-ok .reveal.in { opacity: 1; transform: none; }
html.js-ok .d1 { transition-delay: .08s; } html.js-ok .d2 { transition-delay: .16s; } html.js-ok .d3 { transition-delay: .24s; } html.js-ok .d4 { transition-delay: .32s; }

/* ---------- 移动端 ---------- */
@media (max-width: 1080px) {
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .article-wrap { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 940px) {
  .main-nav {
    position: fixed; inset: var(--nav-h) 0 auto 0; background: #fff; flex-direction: column; align-items: stretch;
    padding: 18px 6vw 26px; gap: 4px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-2);
    transform: translateY(-130%); transition: transform .3s ease; z-index: 55;
  }
  .main-nav.open { transform: none; }
  .main-nav a { padding: 13px 8px; border-radius: 12px; font-size: 16px; }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { background: var(--mint-100); }
  .burger { display: flex; }
  .hero-inner, .split, .detail-hero, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-art { min-height: 400px; }
  .chip.c1 { right: 0; } .chip.c3 { right: -4%; }
  .cta-band { padding: 44px 28px; }
}
@media (max-width: 620px) {
  :root { --nav-h: 64px; }
  .section { padding: 64px 0; }
  .nav-right .btn-header { display: none; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; grid-auto-rows: 150px; }
  .gallery .ph:nth-child(1) { grid-column: span 2; grid-row: auto; }
  .gallery .ph:nth-child(4) { grid-column: span 2; }
  .timeline::before { left: 20px; }
  .tl-item { gap: 18px; }
  .tl-dot { width: 52px; height: 52px; }
  .f-row { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .key-points { grid-template-columns: 1fr; }
  .cat-head { flex-direction: column; align-items: flex-start; }
  .cat-head p { text-align: left; }
}

/* ---------- 移动端增强（双端适配打磨 V1.1） ---------- */
html, body { overflow-x: clip; }
* { -webkit-tap-highlight-color: transparent; }
@media (hover: none) {
  .card:hover, .btn-mint:hover, .btn-light:hover { transform: none; }
}

@media (min-width: 621px) and (max-width: 940px) {
  /* 平板竖屏 / 大屏手机横屏：三列略挤，降为两列更舒展（≤620 保持单列） */
  .g3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  /* 手机竖屏：内容密集的四列卡（优势卡/院长卡）改单列 */
  .g4 { grid-template-columns: 1fr; }
  .page-hero { padding: 54px 0 44px; }
  .hero-inner { padding: 46px 0 40px; }
  .hero-art { min-height: 340px; }
  .cta-band { padding: 34px 24px; }
  .timeline::before { left: 26px; }   /* 对齐缩小后的 52px 圆点中心 */
  .tl-body { padding: 18px 20px; }
  .tl-body h3 { font-size: 17.5px; }
  /* 项目列表行：缩略图缩小、间距收紧 */
  .project-row { gap: 12px; padding: 14px 4px; }
  .project-row .ph-mini { width: 62px; height: 52px; }
  .project-row .ph-mini svg { width: 20px; }
  .project-row h3 { font-size: 15.5px; }
  .project-row p { font-size: 12.5px; margin-top: 2px; }
  .form-card { padding: 24px 20px; }
  .side-card { padding: 20px; }
  /* 移动端 header 紧凑化：保证汉堡菜单始终可见、不被折叠 */
  .header-inner { gap: 12px; }
  .brand { gap: 9px; }
  .brand-mark { width: 38px; height: 38px; border-radius: 11px; }
  .brand-text b { font-size: 19px; letter-spacing: .1em; }
  .brand-text span { letter-spacing: .14em; }
  .nav-right { gap: 8px; }
  .lang-btn { padding: 7px 11px; font-size: 12.5px; gap: 5px; }
  .burger { padding: 9px; }
  /* 语言切换面板：窄屏改为近全宽下拉，避免被视口裁切 */
  .lang-panel { position: fixed; left: 4vw; right: 4vw; top: calc(var(--nav-h) + 8px); width: auto; }
  .lang-item { padding: 13px 14px; font-size: 15px; }
  /* 官方 logo 与页脚微信/小程序区：窄屏自适应 */
  .brand-logo { height: 40px; }
  .brand-logo-footer { height: 46px; padding: 7px 10px; }
  .footer-wechat { grid-template-columns: 1fr; gap: 14px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 10px; }
}

@media (max-width: 400px) {
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
  .brand-text b { font-size: 17px; letter-spacing: .09em; }
  .brand-text span { font-size: 8.5px; letter-spacing: .1em; }
  .lang-btn { padding: 6px 10px; font-size: 12px; }
  .nav-right { gap: 6px; }
  .burger i { width: 20px; }
  .hero h1 { font-size: 28px; }
  .hero-kicker { font-size: 11px; }
  .hero-pillars li { padding: 8px 13px; font-size: 13px; }
}