/* ==========================================================================
   小宇宙科技教育 · 全站样式
   卡片体系 / 按钮体系 / 深色 Hero / 滚动渐显 / Bento 网格
   ========================================================================== */

/* ---------------------------------------------------------------- 1. Reset */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--text-body);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; display: block; }
a { color: var(--brand-600); text-decoration: none; transition: color var(--t-fast) var(--e-out); }
a:hover { color: var(--brand-500); }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure, blockquote { margin: 0; }
::selection { background: var(--brand-200); color: var(--ink-900); }

:focus-visible {
  outline: 3px solid var(--brand-400);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------------------------------------------------------------- 2. 排版 */
h1, h2, h3, h4, h5 {
  margin: 0 0 .6em;
  color: var(--text-strong);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.015em;
  text-wrap: balance;
}
p { text-wrap: pretty; }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 700; }
h4 { font-size: var(--fs-h4); font-weight: 700; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
strong { color: var(--text-strong); font-weight: 700; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------------------------------------------------------------- 3. 布局 */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container-narrow { max-width: 900px; }

.section { padding: var(--section-y) 0; position: relative; }
.section-tight { padding: clamp(48px, 5vw, 76px) 0; }
.section-alt { background: var(--surface-alt); }
.section-sunken { background: var(--surface-sunken); }

/* 深色区块 */
.section-dark {
  background: var(--grad-ink);
  color: var(--text-invert-muted);
  position: relative;
  overflow: hidden;
}
.section-dark h2, .section-dark h3, .section-dark h4, .section-dark strong { color: #fff; }
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 78%);
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 78%);
  pointer-events: none;
}
.section-dark > .container { position: relative; z-index: 1; }

/* 区块头 */
.section-head { margin-bottom: clamp(36px, 4.6vw, 60px); max-width: 760px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-bottom: .35em; }
.section-head .lead {
  font-size: var(--fs-lead);
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}
.section-dark .section-head .lead { color: var(--text-invert-muted); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brand-600);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-accent);
}
.section-dark .eyebrow { color: var(--accent-400); }

.section-head.split {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.section-head.split .more-link { flex: none; }

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--brand-600);
  white-space: nowrap;
}
.more-link svg { transition: transform var(--t-base) var(--e-spring); }
.more-link:hover svg { transform: translateX(5px); }

/* 网格 */
.grid { display: grid; gap: clamp(16px, 2vw, 26px); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------------------------------------------------------------- 4. 按钮 */
.btn {
  --btn-bg: var(--grad-brand);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 30px;
  border: 1px solid transparent;
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  background: var(--btn-bg);
  color: #fff;
  box-shadow: var(--sh-glow);
  transition: transform var(--t-base) var(--e-spring), box-shadow var(--t-base) var(--e-out),
    background-color var(--t-base), color var(--t-base), border-color var(--t-base);
}
.btn:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 20px 44px -16px var(--brand-glow); }
.btn:active { transform: translateY(-1px) scale(.985); }
.btn .ico { transition: transform var(--t-base) var(--e-spring); }
.btn:hover .ico { transform: translateX(3px); }

.btn-accent { --btn-bg: var(--grad-accent); box-shadow: var(--sh-accent); color: #3A2408; }
.btn-accent:hover { color: #3A2408; box-shadow: 0 20px 44px -16px rgba(245, 158, 66, .55); }

.btn-ink { --btn-bg: linear-gradient(135deg, var(--ink-800), var(--ink-600)); box-shadow: var(--sh-md); }

.btn-ghost {
  background: transparent;
  color: var(--text-strong);
  border-color: var(--line);
  box-shadow: none;
}
.btn-ghost:hover {
  color: var(--brand-600);
  border-color: var(--brand-300);
  background: var(--brand-50);
  box-shadow: none;
  transform: translateY(-3px);
}

.btn-glass {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .26);
  color: #fff;
  box-shadow: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, .17);
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
  box-shadow: 0 16px 40px -20px rgba(0, 0, 0, .6);
}

.btn-lg { padding: 17px 40px; font-size: 1rem; }
.btn-sm { padding: 10px 20px; font-size: var(--fs-xs); }
.btn-block { display: flex; width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------------------------------------------------------------- 5. 头部导航 */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: var(--grad-accent);
  z-index: 300;
  transition: width .1s linear;
}

.topbar {
  position: relative;
  z-index: 130;
  background: var(--ink-950);
  color: rgba(255, 255, 255, .72);
  font-size: var(--fs-xs);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 40px; }
.topbar-left { display: flex; align-items: center; gap: 8px; letter-spacing: .02em; }
.topbar-left .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--emerald-400);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .18);
}
.topbar-right { display: flex; align-items: center; gap: 18px; }
.topbar a { color: inherit; }
.topbar a:hover { color: var(--accent-400); }
.topbar .hotline { color: var(--accent-400); font-weight: 700; font-family: var(--font-num); letter-spacing: .04em; }
@media (max-width: 860px) { .topbar { display: none; } }

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  height: var(--header-h);
  display: flex;
  align-items: center;
  /* 默认与 Hero 顶部同色，视觉上连成一整块深色；滚动后切换为白色玻璃拟态 */
  background: var(--ink-900);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
  transition: background-color var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.site-header.is-solid {
  background: rgba(255, 255, 255, .9);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px -22px rgba(4, 18, 31, .5);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand img { height: 44px; width: auto; }
.brand img.logo-dark { display: none; }
.site-header.is-solid .brand img.logo-light { display: none; }
.site-header.is-solid .brand img.logo-dark { display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.18; }
.brand-text b { font-size: 1.0625rem; color: #fff; font-weight: 800; letter-spacing: .01em; transition: color var(--t-base); }
.brand-text span { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: rgba(255, 255, 255, .5); transition: color var(--t-base); }
.site-header.is-solid .brand-text b { color: var(--ink-900); }
.site-header.is-solid .brand-text span { color: var(--n-400); }
@media (max-width: 480px) { .brand img { height: 36px; } .brand-text span { display: none; } }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 10px 13px;
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  color: rgba(255, 255, 255, .82);
  transition: color var(--t-fast), background-color var(--t-fast);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-accent);
  transform: translateX(-50%);
  transition: width var(--t-base) var(--e-out);
}
.nav a:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.nav a:hover::after, .nav a.is-active::after { width: 22px; }
.nav a.is-active { color: #fff; }
.site-header.is-solid .nav a { color: var(--n-700); }
.site-header.is-solid .nav a:hover { color: var(--brand-600); background: var(--brand-50); }
.site-header.is-solid .nav a.is-active { color: var(--brand-600); }

/* 赛事证书查询：外链，用暖橙区分于站内导航 */
.nav a.nav-ext {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-400);
}
.nav a.nav-ext::after { background: linear-gradient(90deg, var(--accent-400), var(--accent-600)); }
.nav a.nav-ext:hover { color: var(--accent-400); background: rgba(245, 158, 66, .14); }
.site-header.is-solid .nav a.nav-ext { color: var(--accent-600); }
.site-header.is-solid .nav a.nav-ext:hover { color: var(--accent-600); background: var(--accent-soft); }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.header-actions .btn { padding: 11px 22px; font-size: var(--fs-xs); }
@media (max-width: 1320px) { .header-actions .btn { padding: 10px 18px; } }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .06);
  padding: 0;
  place-items: center;
}
.site-header.is-solid .nav-toggle { border-color: var(--line); background: var(--n-50); }
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  margin: 2.5px auto;
  border-radius: 2px;
  background: #fff;
  transition: transform var(--t-base) var(--e-inout), opacity var(--t-fast);
}
.site-header.is-solid .nav-toggle span { background: var(--ink-800); }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1220px) {
  .nav { display: none; }
  .nav-toggle { display: grid; }
}
@media (max-width: 560px) { .header-actions .btn { display: none; } }

/* 移动抽屉 */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  grid-template-columns: 1fr min(400px, 88vw);
  pointer-events: none;
}
.nav-drawer::before {
  content: "";
  background: rgba(4, 18, 31, .55);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--t-base);
}
.nav-drawer-panel {
  background: var(--grad-ink);
  color: #fff;
  padding: 26px 24px calc(28px + env(safe-area-inset-bottom));
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--t-slow) var(--e-out);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
body.nav-open .nav-drawer { pointer-events: auto; }
body.nav-open .nav-drawer::before { opacity: 1; }
body.nav-open .nav-drawer-panel { transform: translateX(0); }

.nav-drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.nav-drawer-head img { height: 40px; }
.nav-close {
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .07);
  color: #fff;
  font-size: 1.25rem;
  line-height: 1;
}
.nav-drawer a.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 16px;
  border-radius: var(--r-md);
  color: rgba(255, 255, 255, .88);
  font-weight: 600;
  font-size: 1.0625rem;
  border: 1px solid transparent;
}
.nav-drawer a.drawer-link small { font-size: var(--fs-micro); letter-spacing: .12em; color: rgba(255, 255, 255, .38); text-transform: uppercase; }
.nav-drawer a.drawer-link:hover,
.nav-drawer a.drawer-link.is-active {
  background: rgba(34, 166, 191, .16);
  border-color: rgba(34, 166, 191, .38);
  color: #fff;
}
.nav-drawer a.drawer-ext { color: var(--accent-400); }
.nav-drawer a.drawer-ext span { display: inline-flex; align-items: center; gap: 6px; }
.nav-drawer a.drawer-ext:hover { background: rgba(245, 158, 66, .16); border-color: rgba(245, 158, 66, .38); }
.nav-drawer .drawer-note {
  margin: 8px 4px 0;
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: rgba(255, 255, 255, .45);
}
.nav-drawer-foot { margin-top: auto; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); display: grid; gap: 12px; }
.nav-drawer-foot .btn { width: 100%; }
.nav-drawer-foot .meta { font-size: var(--fs-xs); color: rgba(255, 255, 255, .6); }
.nav-drawer-foot .meta b { display: block; color: var(--accent-400); font-family: var(--font-num); font-size: 1.1rem; letter-spacing: .04em; }

/* ---------------------------------------------------------------- 6. Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-ink);
  color: #fff;
  padding: clamp(64px, 8vw, 104px) 0 clamp(72px, 9vw, 128px);
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 62px 62px;
  -webkit-mask-image: radial-gradient(115% 90% at 50% 8%, #000 25%, transparent 76%);
  mask-image: radial-gradient(115% 90% at 50% 8%, #000 25%, transparent 76%);
  pointer-events: none;
  z-index: -1;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  pointer-events: none;
  z-index: -1;
}
.hero-glow-1 {
  width: 620px; height: 620px;
  top: -240px; right: -120px;
  background: radial-gradient(circle, rgba(34, 166, 191, .62), transparent 68%);
  animation: float-slow 16s ease-in-out infinite;
}
.hero-glow-2 {
  width: 520px; height: 520px;
  bottom: -260px; left: -140px;
  background: radial-gradient(circle, rgba(108, 99, 255, .42), transparent 68%);
  animation: float-slow 21s ease-in-out infinite reverse;
}
.hero-glow-3 {
  width: 340px; height: 340px;
  top: 40%; left: 46%;
  background: radial-gradient(circle, rgba(245, 158, 66, .3), transparent 66%);
  animation: float-slow 26s ease-in-out infinite;
}
@keyframes float-slow {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-32px, 34px, 0) scale(1.09); }
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
@media (max-width: 1024px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 18px 7px 8px;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px);
  margin-bottom: 26px;
}
.hero-badge .pill {
  padding: 3px 12px;
  border-radius: var(--r-full);
  background: var(--grad-accent);
  color: #3A2408;
  font-size: var(--fs-micro);
  font-weight: 800;
  letter-spacing: .06em;
}

.hero h1 {
  font-size: var(--fs-display);
  line-height: 1.05;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: .42em;
}
.hero h1 .accent { display: block; }
.hero-sub {
  font-size: var(--fs-lead);
  line-height: 1.72;
  color: rgba(255, 255, 255, .74);
  max-width: 40em;
  margin-bottom: 34px;
}
.hero .btn-row { margin-bottom: 40px; }

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 3vw, 44px);
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero-metric b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.75rem, 2.6vw, 2.35rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -.02em;
}
.hero-metric b em { font-style: normal; color: var(--accent-400); font-size: .62em; margin-left: 1px; }
.hero-metric > span { font-size: var(--fs-xs); color: rgba(255, 255, 255, .6); letter-spacing: .04em; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; }
.hero-panel {
  position: relative;
  padding: clamp(24px, 3vw, 38px);
  border-radius: var(--r-2xl);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .75);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
}
.hero-panel h3 { color: #fff; font-size: 1.125rem; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.hero-panel h3 .ico { color: var(--accent-400); }
.hero-track { display: grid; gap: 14px; }
.hero-track-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: background-color var(--t-base), transform var(--t-base) var(--e-out), border-color var(--t-base);
}
.hero-track-item:hover { background: rgba(34, 166, 191, .16); border-color: rgba(34, 166, 191, .34); transform: translateX(5px); }
.hero-track-item .step {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  background: var(--grad-brand);
  color: #fff;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 1rem;
}
.hero-track-item b { display: block; color: #fff; font-size: var(--fs-sm); }
.hero-track-item span { font-size: var(--fs-xs); color: rgba(255, 255, 255, .62); line-height: 1.6; }

.hero-float {
  position: absolute;
  right: -10px;
  bottom: -26px;
  padding: 16px 22px;
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .96);
  box-shadow: var(--sh-lg);
  color: var(--ink-900);
  animation: bob 5.5s ease-in-out infinite;
}
.hero-float b { display: block; font-family: var(--font-num); font-size: 1.6rem; font-weight: 800; color: var(--brand-600); line-height: 1.1; }
.hero-float span { font-size: var(--fs-micro); color: var(--n-500); letter-spacing: .04em; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@media (max-width: 1024px) { .hero-float { right: 12px; bottom: -20px; } }

/* 内页 Hero */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-ink);
  color: #fff;
  padding: clamp(52px, 6.5vw, 92px) 0 clamp(56px, 7vw, 100px);
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(120% 100% at 20% 0%, #000 20%, transparent 74%);
  mask-image: radial-gradient(120% 100% at 20% 0%, #000 20%, transparent 74%);
  pointer-events: none;
  z-index: -1;
}
.page-hero .hero-glow { opacity: .45; }
.page-hero h1 { color: #fff; font-size: var(--fs-h1); margin-bottom: .3em; }
.page-hero .lead { font-size: var(--fs-lead); color: rgba(255, 255, 255, .72); max-width: 46em; margin: 0; }
.page-hero .btn-row { margin-top: 32px; }

.crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, .55);
  margin-bottom: 20px;
}
.crumb a { color: rgba(255, 255, 255, .72); }
.crumb a:hover { color: var(--accent-400); }
.crumb .sep { opacity: .5; }

.page-hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.page-hero-badges span {
  padding: 6px 15px;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .86);
}

/* ---------------------------------------------------------------- 7. 信任条 marquee */
.trust-strip {
  background: var(--ink-950);
  border-top: 1px solid rgba(255, 255, 255, .07);
  padding: 18px 0;
  overflow: hidden;
  position: relative;
}
.trust-strip::before, .trust-strip::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 90px;
  z-index: 2;
  pointer-events: none;
}
.trust-strip::before { left: 0; background: linear-gradient(90deg, var(--ink-950), transparent); }
.trust-strip::after { right: 0; background: linear-gradient(270deg, var(--ink-950), transparent); }
.marquee { display: flex; width: max-content; align-items: center; animation: marquee 46s linear infinite; }
.trust-strip:hover .marquee { animation-play-state: paused; }
.marquee-group { display: flex; align-items: center; flex: none; }
.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 26px;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: rgba(255, 255, 255, .74);
  white-space: nowrap;
  border-right: 1px solid rgba(255, 255, 255, .08);
}
.marquee-item .ico { color: var(--accent-400); flex: none; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee { animation: none; flex-wrap: wrap; }
}

/* ---------------------------------------------------------------- 7b. 快捷入口条 */
.quick-band {
  background: var(--n-50);
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
.quick-band .container {
  display: flex;
  align-items: center;
  gap: 18px;
}
.quick-ico {
  width: 46px; height: 46px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  color: var(--accent-600);
}
.quick-text { flex: 1; min-width: 0; }
.quick-text b { display: block; font-size: var(--fs-sm); color: var(--text-strong); }
.quick-text span { font-size: var(--fs-xs); color: var(--text-muted); }
.quick-band .btn { flex: none; }
@media (max-width: 640px) {
  .quick-band .container { flex-wrap: wrap; gap: 12px; }
  .quick-text { flex-basis: calc(100% - 58px); }
  .quick-band .btn { margin-left: 64px; }
}

/* ---------------------------------------------------------------- 8. 卡片体系 */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(22px, 2.4vw, 32px);
  overflow: hidden;
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out),
    border-color var(--t-base);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow) var(--e-out);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--brand-200); }
.card:hover::before { transform: scaleX(1); }

/* 主题色变体
   --c       主色（浅色底上用）
   --c-light 亮色版（深色底上用，保证对比度）
   --c-soft  浅色填充    --c-line 边框色 */
.c-brand    { --c: var(--brand-500);    --c-light: #5FC6DC;  --c-soft: var(--brand-50);    --c-line: var(--brand-200); }
.c-violet   { --c: var(--violet-500);   --c-light: #A78BFA;  --c-soft: var(--violet-soft); --c-line: #D8D5FF; }
.c-amber    { --c: var(--accent-600);   --c-light: #FBBF6B;  --c-soft: var(--accent-soft); --c-line: #FBD9A8; }
.c-emerald  { --c: var(--emerald-500);  --c-light: #6EE7B7;  --c-soft: var(--emerald-soft);--c-line: #A9EBD5; }
.c-sky      { --c: var(--sky-500);      --c-light: #7DD3FC;  --c-soft: var(--sky-soft);    --c-line: #B9DFF8; }
.c-rose     { --c: var(--rose-500);     --c-light: #FDA4AF;  --c-soft: var(--rose-soft);   --c-line: #FBC5C7; }
.c-gold     { --c: var(--gold-500);     --c-light: #F1DFA8;  --c-soft: var(--gold-soft);   --c-line: #F1DFA8; }

/* 带主题色的卡片：顶部色条常驻（本身就是设计元素），hover 只做上浮 */
.card-accent::before { background: linear-gradient(90deg, var(--c), color-mix(in srgb, var(--c) 30%, white)); transform: scaleX(1); }
.card-accent:hover { border-color: var(--c-line); }

/* 图标底片：所有卡片类型共用。以前只在 .card-accent 里定义尺寸，
   .bento-card 里的 .card-ico 是个块级 div，会被拉成一条横杠 —— 现在统一在这里定尺寸。 */
.card-ico {
  width: 56px;
  height: 56px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: var(--c-soft, var(--brand-50));
  color: var(--c, var(--brand-500));
  margin-bottom: 20px;
  transition: transform var(--t-base) var(--e-spring);
}
.card-accent:hover .card-ico,
.bento-card:hover .card-ico { transform: scale(1.07) rotate(-4deg); }
.card-accent h3 { font-size: 1.1875rem; margin-bottom: .55em; }
.card-accent p { font-size: var(--fs-sm); color: var(--text-muted); margin: 0; }

/* ---------------------------------------------------------------- 9. Bento 业务网格 */
.bento {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 24px);
}
.bento-item { grid-column: span 2; }
.bento-item.wide { grid-column: span 4; }
.bento-item.narrow { grid-column: span 2; }
.bento-item.full { grid-column: span 6; }
/* 业务板块固定为 4+2 / 3+3 的拼图，避免出现半行空位 */
.bento > .bento-item:nth-child(1) { grid-column: span 4; }
.bento > .bento-item:nth-child(2) { grid-column: span 2; }
.bento > .bento-item:nth-child(n+3) { grid-column: span 3; }
@media (max-width: 1024px) {
  .bento-item, .bento-item.wide, .bento-item.narrow { grid-column: span 3; }
  .bento > .bento-item:nth-child(1),
  .bento > .bento-item:nth-child(2),
  .bento > .bento-item:nth-child(n+3) { grid-column: span 3; }
  .bento-item.full { grid-column: span 6; }
}
@media (max-width: 680px) {
  .bento { grid-template-columns: minmax(0, 1fr); }
  .bento-item, .bento-item.wide, .bento-item.narrow, .bento-item.full,
  .bento > .bento-item:nth-child(1),
  .bento > .bento-item:nth-child(2),
  .bento > .bento-item:nth-child(n+3) { grid-column: span 1; }
}

.bento-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(24px, 2.6vw, 34px);
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out), border-color var(--t-base);
}
.bento-card::after {
  content: "";
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  right: -70px; bottom: -90px;
  background: radial-gradient(circle, var(--c-soft, var(--brand-50)), transparent 70%);
  opacity: .85;
  transition: transform var(--t-slow) var(--e-out);
  pointer-events: none;
}
.bento-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--c-line, var(--brand-200)); }
.bento-card:hover::after { transform: scale(1.25); }
.bento-card > * { position: relative; z-index: 1; }
.bento-card .card-ico { margin-bottom: 18px; }.bento-card h3 { font-size: clamp(1.15rem, 1.6vw, 1.4rem); margin-bottom: .5em; }
.bento-card p { font-size: var(--fs-sm); color: var(--text-muted); }
.bento-card .features { display: grid; gap: 8px; margin: 16px 0 0; }
.bento-card .features li {
  display: flex; gap: 9px; align-items: flex-start;
  font-size: var(--fs-sm);
  color: var(--n-600);
}
.bento-card .features li .ico { color: var(--c, var(--brand-500)); flex: none; margin-top: 4px; }
.bento-card .bento-link {
  margin-top: auto;
  padding-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--c, var(--brand-600));
}
.bento-card .bento-link .ico { transition: transform var(--t-base) var(--e-spring); }
.bento-card:hover .bento-link .ico { transform: translateX(5px); }

/* 深色 Bento 卡（用于强调） */
.bento-card.is-dark {
  background: var(--grad-ink);
  border-color: rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .72);
}
.bento-card.is-dark h3 { color: #fff; }
.bento-card.is-dark p { color: rgba(255, 255, 255, .68); }
.bento-card.is-dark .features li { color: rgba(255, 255, 255, .72); }
.bento-card.is-dark .card-ico { background: rgba(255, 255, 255, .1); color: var(--accent-400); }
.bento-card.is-dark::after { background: radial-gradient(circle, rgba(34, 166, 191, .34), transparent 70%); }
.bento-card.is-dark .bento-link { color: var(--accent-400); }

/* ⚠️ 深色区块里的浅色卡片
   `.section-dark h3 { color: #fff }` 是给深色底准备的，一旦把默认的**白底**卡片
   放进深色区块，标题就会变成白字白底、直接看不见。这里统一把深色区块里的
   卡片改成玻璃拟态深色卡，标题保持白色、正文用半透明白，避免再踩这个坑。 */
.section-dark .bento-card:not(.is-dark) {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .72);
  box-shadow: none;
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
}
.section-dark .bento-card:not(.is-dark)::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--c-light, var(--brand-300)), transparent 88%);
  opacity: .9;
}
.section-dark .bento-card:not(.is-dark)::after {
  background: radial-gradient(circle, color-mix(in srgb, var(--c-light, var(--brand-300)) 26%, transparent), transparent 70%);
  opacity: .8;
}
.section-dark .bento-card:not(.is-dark):hover {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .28);
  box-shadow: 0 26px 60px -30px rgba(0, 0, 0, .8);
}
.section-dark .bento-card:not(.is-dark) h3 { color: #fff; }
.section-dark .bento-card:not(.is-dark) p { color: rgba(255, 255, 255, .66); }
.section-dark .bento-card:not(.is-dark) .card-ico {
  background: rgba(255, 255, 255, .1);
  color: var(--c-light, var(--accent-400));
}
.section-dark .bento-card:not(.is-dark) .features li { color: rgba(255, 255, 255, .72); }
.section-dark .bento-card:not(.is-dark) .features li .ico { color: var(--c-light, var(--accent-400)); }
.section-dark .bento-card:not(.is-dark) .bento-link { color: var(--c-light, var(--accent-400)); }

/* 深色区块里的普通 .card 同理（module/card 都可能是白底） */
.section-dark .card:not(.card-dark) {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.section-dark .card:not(.card-dark) h3,
.section-dark .card:not(.card-dark) h4 { color: #fff; }
.section-dark .card:not(.card-dark) p { color: rgba(255, 255, 255, .66); }

/* ---------------------------------------------------------------- 10. 数据带 */
.stat-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.stat-band-item {
  background: rgba(6, 26, 43, .72);
  padding: clamp(24px, 3vw, 40px) clamp(18px, 2vw, 28px);
  text-align: center;
  transition: background-color var(--t-base);
}
.stat-band-item:hover { background: rgba(14, 143, 168, .2); }
.stat-band-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.1rem, 4vw, 3.35rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: 12px;
}
.stat-band-num em { font-style: normal; color: var(--accent-400); font-size: .62em; margin-left: 2px; }
.stat-band-label { font-size: var(--fs-sm); color: rgba(255, 255, 255, .7); }
.stat-band-note { display: block; margin-top: 6px; font-size: var(--fs-micro); color: rgba(255, 255, 255, .4); }
@media (max-width: 900px) { .stat-band { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 460px) { .stat-band { grid-template-columns: minmax(0, 1fr); } }

/* 浅色数据条 */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: clamp(18px, 2.4vw, 32px);
}
.stat-row-item {
  padding: 24px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  text-align: center;
}
.stat-row-item b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--brand-600);
  line-height: 1.05;
  margin-bottom: 8px;
}
/* 注意用子选择器：b 内部的计数 span 必须继承大字号 */
.stat-row-item > span { font-size: var(--fs-sm); color: var(--text-muted); }

/* ---------------------------------------------------------------- 11. 课程 */
.course-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--c, var(--brand-500));
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.course-card .course-ico {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: var(--r-md);
  background: var(--c-soft, var(--brand-50));
  color: var(--c, var(--brand-500));
  margin-bottom: 18px;
}
.course-card h3 { font-size: 1.125rem; margin-bottom: .4em; }
.course-card .age {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c, var(--brand-600));
  background: var(--c-soft, var(--brand-50));
  padding: 4px 12px;
  border-radius: var(--r-full);
  margin-bottom: 14px;
}
.course-card p { font-size: var(--fs-sm); color: var(--text-muted); }
.course-card .course-points { display: grid; gap: 7px; margin: 16px 0 0; }
.course-card .course-points li { display: flex; gap: 8px; font-size: var(--fs-xs); color: var(--n-600); }
.course-card .course-points .ico { color: var(--c, var(--brand-500)); flex: none; margin-top: 3px; }
.course-card .course-outcome {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: var(--fs-xs);
  color: var(--n-500);
}
.course-card .course-outcome b { color: var(--text-strong); }

/* 学部标签栏 */
.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--block-gap);
}
.cat-tabs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--r-full);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--n-600);
}
.cat-tabs a:hover { border-color: var(--brand-300); color: var(--brand-600); background: var(--brand-50); }

/* 学部区块 */
.cat-block { margin-bottom: clamp(52px, 6vw, 88px); }
.cat-block:last-child { margin-bottom: 0; }
.cat-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding-bottom: 22px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}
.cat-head .cat-ico {
  width: 60px; height: 60px;
  display: grid; place-items: center;
  border-radius: var(--r-lg);
  background: var(--c-soft);
  color: var(--c);
  flex: none;
}
.cat-head h2 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); margin: 0 0 4px; }
.cat-head p { margin: 0; font-size: var(--fs-sm); color: var(--text-muted); }
.cat-head .cat-count {
  font-family: var(--font-num);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c);
  background: var(--c-soft);
  padding: 6px 16px;
  border-radius: var(--r-full);
  white-space: nowrap;
}
@media (max-width: 680px) {
  .cat-head { grid-template-columns: auto minmax(0, 1fr); }
  .cat-head .cat-count { display: none; }
}

/* ---------------------------------------------------------------- 12. 师资 */
.teacher-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 26px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out), border-color var(--t-base);
}
.teacher-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--c, var(--brand-500)), transparent 90%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow) var(--e-out);
}
.teacher-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--brand-200); }
.teacher-card:hover::before { transform: scaleX(1); }
.teacher-top { display: flex; gap: 16px; align-items: center; margin-bottom: 18px; }
.teacher-avatar {
  width: 84px; height: 84px;
  flex: none;
  border-radius: 50%;
  overflow: hidden;
  background: var(--c-soft, var(--brand-50));
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--c-line, var(--brand-200)), var(--sh-sm);
  display: grid;
  place-items: center;
}
.teacher-avatar img { width: 100%; height: 100%; object-fit: cover; }
.teacher-avatar .initial {
  font-family: var(--font-num);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--c, var(--brand-600));
}
.teacher-card:hover .teacher-avatar { box-shadow: 0 0 0 3px var(--c, var(--brand-400)), var(--sh-md); }
.teacher-name { font-size: 1.15rem; font-weight: 800; color: var(--text-strong); margin-bottom: 4px; }
.teacher-title { font-size: var(--fs-xs); font-weight: 600; color: var(--c, var(--brand-600)); }
.teacher-school { font-size: var(--fs-xs); color: var(--n-500); margin-top: 4px; }
.teacher-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 16px; }
.teacher-tags span {
  padding: 4px 11px;
  border-radius: var(--r-full);
  background: var(--n-50);
  border: 1px solid var(--line-soft);
  font-size: var(--fs-micro);
  color: var(--n-600);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.teacher-card .teacher-brief { font-size: var(--fs-sm); color: var(--text-muted); }
.teacher-card .teacher-more {
  margin-top: auto;
  padding-top: 18px;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--brand-600);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.teacher-card .teacher-more .ico { transition: transform var(--t-base) var(--e-spring); }
.teacher-card:hover .teacher-more .ico { transform: translateX(5px); }

/* 师资详情 */
.teacher-profile {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 48px);
  align-items: start;
}
@media (max-width: 880px) { .teacher-profile { grid-template-columns: minmax(0, 1fr); } }
.teacher-profile-card {
  padding: 32px;
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  text-align: center;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  box-shadow: var(--sh-sm);
}
@media (max-width: 880px) { .teacher-profile-card { position: static; } }
.teacher-profile-card .big-avatar {
  width: 160px; height: 160px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #fff;
  box-shadow: 0 0 0 4px var(--brand-100), var(--sh-md);
  background: var(--brand-50);
  display: grid;
  place-items: center;
}
.teacher-profile-card .big-avatar img { width: 100%; height: 100%; object-fit: cover; }
.teacher-profile-card .big-avatar .initial { font-family: var(--font-num); font-size: 3.4rem; font-weight: 800; color: var(--brand-500); }
.teacher-profile-card h1 { font-size: 1.75rem; margin-bottom: .2em; }
.teacher-profile-card .role { color: var(--brand-600); font-weight: 700; font-size: var(--fs-sm); margin-bottom: 14px; }
.teacher-profile-card .cred { font-size: var(--fs-xs); color: var(--n-500); line-height: 1.8; }
.teacher-profile-card .btn { margin-top: 22px; }

.info-block {
  padding: 28px 30px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  margin-bottom: 22px;
}
.info-block h2 {
  font-size: 1.0625rem;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.info-block h2 .ico { color: var(--brand-500); }
.info-block p { font-size: var(--fs-sm); color: var(--n-600); line-height: 1.85; margin: 0; }
.info-block ul.checks { display: grid; gap: 10px; }
.info-block ul.checks li { display: flex; gap: 10px; font-size: var(--fs-sm); color: var(--n-600); }
.info-block ul.checks li .ico { color: var(--emerald-500); flex: none; margin-top: 4px; }

/* ---------------------------------------------------------------- 13. 成果 */
.achv-list { display: grid; gap: 14px; }
.achv-item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 20px 24px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--line);
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base), border-color var(--t-base);
}
.achv-item:hover { transform: translateX(6px); box-shadow: var(--sh-sm); border-color: var(--brand-200); }
.achv-year {
  font-family: var(--font-num);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--brand-600);
  letter-spacing: .02em;
}
.achv-main b { display: block; font-size: var(--fs-sm); color: var(--text-strong); font-weight: 700; margin-bottom: 3px; }
.achv-main span { font-size: var(--fs-xs); color: var(--n-500); }
.achv-award {
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: var(--accent-soft);
  color: var(--accent-600);
  white-space: nowrap;
}
.achv-award.is-national { background: #FFF1E6; color: #C2410C; }
.achv-award.is-province { background: var(--brand-50); color: var(--brand-700); }
.achv-award.is-city { background: var(--violet-soft); color: var(--violet-500); }
.achv-award.is-district { background: var(--n-100); color: var(--n-600); }
@media (max-width: 720px) {
  .achv-item { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .achv-award { justify-self: start; }
}

/* 时间轴 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 9px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-400), var(--violet-400), transparent);
}
.timeline-item { position: relative; padding-bottom: 38px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 7px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--brand-500);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px var(--brand-100);
}
.timeline-year {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--brand-600);
  margin-bottom: 6px;
}
.timeline-item h3 { font-size: 1.0625rem; margin-bottom: .4em; }
.timeline-item p { font-size: var(--fs-sm); color: var(--text-muted); margin: 0; }
.timeline-tag {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-micro);
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent-600);
  vertical-align: middle;
}

/* ---------------------------------------------------------------- 14. 学校名录 */
.school-region { margin-bottom: 34px; }
.school-region h3 {
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text-strong);
}
.school-region h3 .badge {
  font-family: var(--font-num);
  font-size: var(--fs-micro);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--r-full);
  background: var(--brand-50);
  color: var(--brand-600);
}
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chips a, .chips span {
  padding: 8px 16px;
  border-radius: var(--r-full);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: var(--fs-xs);
  color: var(--n-600);
  transition: all var(--t-fast) var(--e-out);
}
.chips span:hover { border-color: var(--brand-300); color: var(--brand-600); background: var(--brand-50); transform: translateY(-2px); }

/* 案例卡 */
.case-card {
  padding: 28px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.case-card .case-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.case-card .case-cat {
  font-size: var(--fs-micro);
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: var(--brand-50);
  color: var(--brand-700);
}
.case-card .case-year { font-family: var(--font-num); font-size: var(--fs-xs); color: var(--n-400); }
.case-card h3 { font-size: 1.0625rem; margin-bottom: .5em; }
.case-card p { font-size: var(--fs-sm); color: var(--text-muted); }
.case-card .case-client {
  margin-top: auto;
  padding-top: 16px;
  font-size: var(--fs-xs);
  color: var(--n-500);
  border-top: 1px dashed var(--line);
}

/* ---------------------------------------------------------------- 15. 资讯 */
.news-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out), border-color var(--t-base);
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--brand-200); }
.news-cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--brand-100), var(--brand-50));
  overflow: hidden;
  position: relative;
}
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--e-out); }
.news-card:hover .news-cover img { transform: scale(1.06); }
/* 没有封面图时的占位：品牌水印 + 细网格，避免出现一大块空白 */
.news-cover.is-empty .cover-mark {
  object-fit: contain;
  width: 76px;
  height: 76px;
  padding: 0;
  opacity: .22;
  position: absolute;
  inset: 0;
  margin: auto;
  transform: none !important;
}
.news-cover.is-empty::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 143, 168, .085) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 143, 168, .085) 1px, transparent 1px);
  background-size: 26px 26px;
}
.news-cover .news-tag { z-index: 2; }
.news-cover .news-tag {
  position: absolute;
  top: 14px; left: 14px;
  padding: 5px 13px;
  border-radius: var(--r-full);
  font-size: var(--fs-micro);
  font-weight: 700;
  backdrop-filter: blur(6px);
}
.news-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-date { font-family: var(--font-num); font-size: var(--fs-xs); color: var(--n-400); margin-bottom: 10px; }
.news-body h3 { font-size: 1.0625rem; line-height: 1.5; margin-bottom: .5em; }
.news-body h3 a { color: inherit; }
.news-body h3 a:hover { color: var(--brand-600); }
.news-body p { font-size: var(--fs-sm); color: var(--text-muted); }
.news-body .news-more {
  margin-top: auto;
  padding-top: 16px;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--brand-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 资讯筛选 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 34px;
}
.filter-bar a {
  padding: 9px 20px;
  border-radius: var(--r-full);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--n-600);
}
.filter-bar a:hover { border-color: var(--brand-300); color: var(--brand-600); }
.filter-bar a.is-active { background: var(--grad-brand); border-color: transparent; color: #fff; box-shadow: var(--sh-glow); }
.search-form { display: flex; gap: 10px; margin-left: auto; }
.search-form input {
  padding: 10px 18px;
  border-radius: var(--r-full);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: var(--fs-sm);
  min-width: 210px;
  font-family: inherit;
}
.search-form input:focus { outline: none; border-color: var(--brand-400); box-shadow: 0 0 0 4px rgba(34, 166, 191, .14); }
@media (max-width: 680px) { .search-form { margin-left: 0; width: 100%; } .search-form input { flex: 1; min-width: 0; } }

/* 资讯详情 */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
@media (max-width: 960px) { .article-layout { grid-template-columns: minmax(0, 1fr); } }
.article-body { font-size: 1.0625rem; line-height: 1.9; color: var(--n-700); }
.article-body h2 { font-size: 1.4rem; margin-top: 2em; }
.article-body h3 { font-size: 1.15rem; margin-top: 1.6em; }
.article-body p { margin-bottom: 1.3em; }
.article-body ul, .article-body ol { margin: 0 0 1.3em; padding-left: 1.4em; list-style: revert; }
.article-body li { margin-bottom: .5em; }
.article-body img { border-radius: var(--r-md); margin: 1.4em 0; }
.article-body blockquote {
  padding: 18px 22px;
  border-left: 4px solid var(--brand-400);
  background: var(--brand-50);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  color: var(--n-700);
  margin: 1.4em 0;
}
.article-body a { text-decoration: underline; text-underline-offset: 3px; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-xs);
  color: var(--n-500);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-cover { border-radius: var(--r-lg); overflow: hidden; margin-bottom: 32px; }

.side-widget {
  padding: 24px;
  border-radius: var(--r-lg);
  background: var(--surface-alt);
  border: 1px solid var(--line);
  margin-bottom: 20px;
}
.side-widget h3 { font-size: .9375rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.side-list { display: grid; gap: 14px; }
.side-list a { display: flex; gap: 10px; font-size: var(--fs-sm); color: var(--n-600); line-height: 1.6; }
.side-list a:hover { color: var(--brand-600); }
.side-list .rank {
  font-family: var(--font-num);
  font-weight: 800;
  color: var(--n-300);
  flex: none;
}
.side-list a:nth-child(1) .rank { color: var(--accent-500); }
.side-list a:nth-child(2) .rank { color: var(--brand-400); }
.side-list a:nth-child(3) .rank { color: var(--violet-400); }

.pager { display: flex; justify-content: center; gap: 8px; margin-top: 48px; }
.pager a, .pager span {
  min-width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--n-600);
}
.pager a:hover { border-color: var(--brand-300); color: var(--brand-600); }
.pager .is-active { background: var(--grad-brand); border-color: transparent; color: #fff; }

/* ---------------------------------------------------------------- 16. 表单 */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.form-grid .span-2 { grid-column: span 2; }
@media (max-width: 640px) { .form-grid { grid-template-columns: minmax(0, 1fr); } .form-grid .span-2 { grid-column: span 1; } }
.field { display: grid; gap: 8px; }
.field label { font-size: var(--fs-sm); font-weight: 600; color: var(--n-700); }
.field label .req { color: var(--danger); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--surface);
  font-family: inherit;
  font-size: var(--fs-sm);
  color: var(--text-strong);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--n-400); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--brand-400);
  box-shadow: 0 0 0 4px rgba(34, 166, 191, .14);
}
.form-note { font-size: var(--fs-xs); color: var(--n-500); }
.form-result {
  display: none;
  padding: 16px 20px;
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  font-weight: 600;
}
.form-result.is-ok { display: block; background: var(--emerald-soft); color: #0B7A5B; }
.form-result.is-err { display: block; background: var(--rose-soft); color: #B91C1C; }

.contact-panel {
  padding: clamp(26px, 3vw, 40px);
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--sh-sm);
}
.contact-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 0; border-bottom: 1px dashed var(--line); }
.contact-item:last-child { border-bottom: none; }
.contact-item .ci-ico {
  width: 46px; height: 46px;
  flex: none;
  display: grid; place-items: center;
  border-radius: var(--r-md);
  background: var(--brand-50);
  color: var(--brand-600);
}
.contact-item b { display: block; font-size: var(--fs-sm); color: var(--text-strong); margin-bottom: 3px; }
.contact-item span, .contact-item a { font-size: var(--fs-sm); color: var(--n-500); }
.contact-item a:hover { color: var(--brand-600); }

/* ---------------------------------------------------------------- 17. FAQ */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.faq-item[open] { border-color: var(--brand-200); box-shadow: var(--sh-sm); }
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--text-strong);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q-mark {
  width: 28px; height: 28px;
  flex: none;
  display: grid; place-items: center;
  border-radius: var(--r-xs);
  background: var(--brand-50);
  color: var(--brand-600);
  font-family: var(--font-num);
  font-size: var(--fs-xs);
  font-weight: 800;
}
.faq-item summary .chev { margin-left: auto; color: var(--n-400); transition: transform var(--t-base) var(--e-out); flex: none; }
.faq-item[open] summary .chev { transform: rotate(180deg); color: var(--brand-500); }
.faq-answer { padding: 0 24px 22px 66px; font-size: var(--fs-sm); color: var(--text-muted); }
.section-dark .faq-item { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .12); }
.section-dark .faq-item summary { color: #fff; }
.section-dark .faq-item summary .q-mark { background: rgba(34, 166, 191, .2); color: var(--brand-300); }

/* ---------------------------------------------------------------- 18. CTA 区块 */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-2xl);
  padding: clamp(38px, 5vw, 68px);
  background: var(--grad-ink);
  color: #fff;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 520px; height: 520px;
  right: -140px; top: -220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 166, 191, .45), transparent 68%);
  filter: blur(30px);
  z-index: -1;
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 72%);
  mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 72%);
  pointer-events: none;
  z-index: -1;
}
.cta-band h2 { color: #fff; margin-bottom: .35em; font-size: clamp(1.5rem, 2.6vw, 2.2rem); }
.cta-band p { color: rgba(255, 255, 255, .72); margin: 0; font-size: var(--fs-sm); max-width: 44em; }
.cta-band .btn-row { justify-content: flex-end; }
@media (max-width: 880px) {
  .cta-band { grid-template-columns: minmax(0, 1fr); }
  .cta-band .btn-row { justify-content: flex-start; }
}

/* ---------------------------------------------------------------- 19. 页脚 */
.site-footer {
  background: var(--ink-950);
  color: rgba(255, 255, 255, .6);
  font-size: var(--fs-sm);
  position: relative;
  padding-top: 4px;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-400), var(--accent-500), var(--violet-500));
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 3.6vw, 56px);
  padding: clamp(48px, 6vw, 76px) 0 clamp(34px, 4vw, 52px);
}
@media (max-width: 960px) { .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .footer-top { grid-template-columns: minmax(0, 1fr); } }
.footer-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.footer-brand img { height: 52px; }
.footer-brand b { display: block; color: #fff; font-size: 1.15rem; font-weight: 800; }
.footer-brand span { font-size: var(--fs-micro); letter-spacing: .18em; color: rgba(255, 255, 255, .45); text-transform: uppercase; }
.footer-about { font-size: var(--fs-sm); line-height: 1.85; max-width: 34em; }
.footer-col h4 {
  color: #fff;
  font-size: .9375rem;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 30px; height: 3px;
  border-radius: 3px;
  background: var(--grad-accent);
}
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { color: rgba(255, 255, 255, .58); font-size: var(--fs-sm); }
.footer-col a:hover { color: var(--accent-400); }
.footer-contact li { display: flex; gap: 11px; align-items: flex-start; font-size: var(--fs-sm); line-height: 1.7; }
.footer-contact .ico { color: var(--brand-400); flex: none; margin-top: 4px; }
.footer-contact b { color: var(--accent-400); font-family: var(--font-num); font-size: 1.1rem; letter-spacing: .03em; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 22px 0 calc(22px + env(safe-area-inset-bottom));
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, .42);
}
.footer-bottom a { color: rgba(255, 255, 255, .5); }
.footer-bottom a:hover { color: var(--accent-400); }
.footer-bottom .disclaimer { flex-basis: 100%; font-size: var(--fs-micro); color: rgba(255, 255, 255, .3); }
@media (max-width: 767px) {
  .site-footer { padding-bottom: var(--bottom-bar-h); }
  .footer-bottom { padding-bottom: 22px; }
}

/* ---------------------------------------------------------------- 20. 移动底部操作栏 */
.mobile-bar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 110;
  height: calc(var(--bottom-bar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(255, 255, 255, .94);
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 26px -18px rgba(4, 18, 31, .5);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.mobile-bar-inner { display: grid; grid-template-columns: repeat(3, 1fr); height: var(--bottom-bar-h); }
.mobile-bar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: var(--fs-micro);
  font-weight: 600;
  color: var(--n-600);
  border-right: 1px solid var(--line-soft);
}
.mobile-bar a:last-child { border-right: none; }
.mobile-bar a .ico { color: var(--brand-500); }
.mobile-bar a.is-primary { background: var(--grad-brand); color: #fff; }
.mobile-bar a.is-primary .ico { color: #fff; }
@media (max-width: 767px) { .mobile-bar { display: block; } }

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 100;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3);
  background: var(--grad-ink);
  color: #fff;
  box-shadow: var(--sh-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity var(--t-base), transform var(--t-base) var(--e-out);
}
.to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { background: var(--grad-brand); }
@media (max-width: 767px) { .to-top { bottom: calc(var(--bottom-bar-h) + 18px + env(safe-area-inset-bottom)); right: 14px; } }

/* ---------------------------------------------------------------- 21. 滚动渐显 */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--e-out), transform .7s var(--e-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal="fade"] { transform: none; }
[data-reveal="left"] { transform: translateX(-26px); }
[data-reveal="right"] { transform: translateX(26px); }
[data-reveal="scale"] { transform: scale(.96); }
[data-reveal].is-in { transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ---------------------------------------------------------------- 22. 杂项组件 */
.badge-soft {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px;
  border-radius: var(--r-full);
  background: var(--brand-50);
  color: var(--brand-700);
  font-size: var(--fs-xs);
  font-weight: 700;
}
.note {
  padding: 16px 20px;
  border-radius: var(--r-md);
  background: var(--surface-alt);
  border: 1px solid var(--line);
  font-size: var(--fs-xs);
  color: var(--n-500);
  line-height: 1.8;
}
.quote-block {
  position: relative;
  padding: 28px 30px 28px 40px;
  border-radius: var(--r-lg);
  background: var(--brand-50);
  border-left: 4px solid var(--brand-400);
  font-size: var(--fs-sm);
  color: var(--n-700);
  line-height: 1.85;
}
.empty-state {
  padding: 64px 24px;
  text-align: center;
  color: var(--n-400);
  font-size: var(--fs-sm);
  border: 1px dashed var(--line);
  border-radius: var(--r-lg);
}
.divider { height: 1px; background: var(--line); margin: var(--block-gap) 0; border: none; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--block-gap); }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------- 23. 打印 */
@media print {
  .site-header, .topbar, .mobile-bar, .to-top, .scroll-progress, .cta-band, .site-footer { display: none !important; }
  body { color: #000; }
  a { text-decoration: none; color: #000; }
}