/* ============================================================
   6688体育在线 · /assets/site.css
   共享外壳：重置 / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   视觉母题：深夜战术分析室 + 边线记分牌
   ============================================================ */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote { margin: 0; }

ul, ol { padding: 0; list-style: none; }

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

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

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  --c-ink: #0B2A26;
  --c-night: #061917;
  --c-cool: #C7D2D0;
  --c-slate: #6E807E;
  --c-cyan: #3BF0D0;
  --c-amber: #FFA23A;
  --c-indigo: #16243F;
  --c-wine: #5E1B2E;
  --c-mint: #E8F5F1;
  --c-line: #1E3B37;

  --bg: var(--c-ink);
  --fg: var(--c-cool);

  --radius: 4px;
  --shadow-1: 0 1px 0 rgba(0, 0, 0, .3), 0 10px 26px -20px rgba(0, 0, 0, .8);
  --shadow-2: 0 2px 0 rgba(0, 0, 0, .34), 0 26px 48px -26px rgba(0, 0, 0, .9);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --shell: 1240px;
  --col-index: 220px;
  --col-read: 700px;
  --col-side: 320px;

  --bar-h: 68px;
  --rail-h: 0px;
  --header-h: calc(var(--bar-h) + var(--rail-h));

  --gap: clamp(16px, 2.2vw, 28px);
  --pad: clamp(18px, 4vw, 44px);
}

@media (min-width: 900px) {
  :root { --bar-h: 78px; --rail-h: 26px; }
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background:
    radial-gradient(1100px 520px at 78% -6%, rgba(59, 240, 208, .09), transparent 62%),
    radial-gradient(900px 480px at -8% 12%, rgba(255, 162, 58, .06), transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
}

body[data-nav-open="true"] { overflow: hidden; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--c-mint);
}

h1 { font-size: clamp(30px, 5.2vw, 54px); }
h2 { font-size: clamp(22px, 3.2vw, 34px); }
h3 { font-size: clamp(17px, 2vw, 22px); }
h4 { font-size: 16px; }

p { max-width: 38em; }

::selection { background: rgba(59, 240, 208, .28); color: var(--c-mint); }

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  border-radius: 2px;
}

.num,
[data-year] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

/* ---------- 4. 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.below-header { padding-top: var(--header-h); }

.section { padding: clamp(34px, 5vw, 64px) 0; }
.section--tight { padding: clamp(20px, 3vw, 34px) 0; }
.section--indigo {
  background: linear-gradient(180deg, rgba(22, 36, 63, .38), rgba(22, 36, 63, 0));
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.section-head {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.section-head__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-cyan);
  padding-bottom: 6px;
}

.section-head__title { font-size: clamp(22px, 3vw, 32px); }

.section-head__rule {
  flex: 1 1 auto;
  height: 1px;
  margin-bottom: 11px;
  background: linear-gradient(90deg, var(--c-line), transparent);
}

.split { display: grid; gap: var(--gap); grid-template-columns: 1fr; }

@media (min-width: 900px) {
  .split { grid-template-columns: var(--col-index) minmax(0, 1fr); }
}

@media (min-width: 1180px) {
  .split { grid-template-columns: var(--col-index) minmax(0, var(--col-read)) var(--col-side); }
}

.split__index { align-self: start; }
.split__main { min-width: 0; }
.split__side { min-width: 0; align-self: start; }

.prose {
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-cool);
}

.prose p + p { margin-top: 1em; }
.prose h3 { margin: 1.6em 0 .5em; }
.prose strong { color: var(--c-mint); }
.prose ul { margin: 1em 0; padding-left: 1.15em; list-style: disc; }
.prose li { margin: .4em 0; }
.prose a { color: var(--c-cyan); border-bottom: 1px solid rgba(59, 240, 208, .4); }

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--c-slate);
}

.breadcrumbs a { color: var(--c-cool); }
.breadcrumbs a:hover { color: var(--c-cyan); }
.breadcrumbs__sep { color: var(--c-line); }
.breadcrumbs [aria-current="page"] { color: var(--c-cyan); font-family: var(--font-mono); }

.annotation {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-slate);
}

.annotation--cyan { color: var(--c-cyan); }

/* ---------- 5. 按钮与控件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--c-cool);
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn--cta {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-night);
}

.btn--cta:hover { background: var(--c-mint); border-color: var(--c-mint); }

.btn--ghost { background: rgba(59, 240, 208, .06); }
.btn--ghost:hover { border-color: var(--c-cyan); color: var(--c-mint); }

.btn--amber {
  background: var(--c-amber);
  border-color: var(--c-amber);
  color: var(--c-night);
}

.btn--amber:hover { background: var(--c-mint); border-color: var(--c-mint); }

.quick {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(11, 42, 38, .55);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-cool);
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}

.quick:hover { border-color: var(--c-cyan); color: var(--c-mint); }
.quick.is-on { border-color: var(--c-amber); color: var(--c-amber); background: rgba(255, 162, 58, .1); }
.quick--link { text-decoration: none; }

.quick__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-amber);
  background: rgba(255, 162, 58, .14);
  padding: 1px 5px;
  border-radius: 3px;
}

/* ---------- 6. 头部 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 130;
  padding: 10px 16px;
  background: var(--c-cyan);
  color: var(--c-night);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform .2s ease;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(6, 25, 23, .9), rgba(6, 25, 23, 0));
  border-bottom: 1px solid transparent;
  transition: background .28s ease, border-color .28s ease, box-shadow .28s ease;
}

.site-header[data-scrolled="true"] {
  background: var(--c-night);
  border-bottom-color: var(--c-line);
  box-shadow: 0 22px 44px -36px #000;
}

.header-rail { display: none; }

@media (min-width: 900px) {
  .header-rail {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: var(--rail-h);
    max-width: var(--shell);
    margin: 0 auto;
    padding: 2px var(--pad) 0;
    overflow: hidden;
    font-size: 11px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--c-slate);
    transition: height .26s ease, opacity .26s ease;
  }

  .site-header[data-scrolled="true"] .header-rail { height: 0; opacity: 0; }
}

.header-rail__label { white-space: nowrap; }

.header-rail__now {
  font-family: var(--font-mono);
  letter-spacing: .1em;
  color: var(--c-cyan);
  white-space: nowrap;
}

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 24px);
  height: var(--bar-h);
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

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

.brand__mark {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
  padding: 6px 8px;
  border-radius: var(--radius);
  background: var(--c-cyan);
  color: var(--c-night);
}

.brand__text { display: flex; flex-direction: column; line-height: 1.16; }
.brand__name { font-size: 15px; font-weight: 700; letter-spacing: -.01em; color: var(--c-mint); }
.brand__sub { font-size: 10.5px; letter-spacing: .14em; color: var(--c-slate); }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.2vw, 18px);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1vw, 16px);
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 4px;
  font-size: 14px;
  color: var(--c-cool);
  white-space: nowrap;
  transition: color .18s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}

.site-nav__link:hover { color: var(--c-mint); }
.site-nav__link:hover::after { transform: scaleX(1); }

.site-nav__no {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--c-slate);
}

.site-nav__link[aria-current="page"] { color: var(--c-mint); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--c-amber); }
.site-nav__link[aria-current="page"] .site-nav__no { color: var(--c-cyan); }

.site-nav__tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: clamp(4px, 1vw, 14px);
  padding-left: clamp(8px, 1.4vw, 20px);
  border-left: 1px solid var(--c-line);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 12px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(6, 25, 23, .6);
  font-size: 13px;
  color: var(--c-cool);
}

.nav-toggle__label { letter-spacing: .04em; }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--c-cyan);
  transition: background .2s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--c-cyan);
  transition: transform .24s ease, top .24s ease;
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(30, 59, 55, .6);
  opacity: 0;
  transition: opacity .25s ease;
}

.site-header[data-scrolled="true"] .progress { opacity: 1; }

.progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-amber));
  transition: width .14s linear;
}

@media (max-width: 899px) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    width: min(88vw, 380px);
    margin-left: 0;
    padding: calc(var(--header-h) + 18px) 22px 30px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow-y: auto;
    background: linear-gradient(180deg, var(--c-night), var(--c-ink));
    border-left: 1px solid var(--c-line);
    box-shadow: var(--shadow-2);
    visibility: hidden;
    transform: translateX(100%);
    transition: transform .3s ease, visibility .3s ease;
  }

  .site-nav[data-open="true"] { visibility: visible; transform: translateX(0); }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }

  .site-nav__link {
    width: 100%;
    justify-content: space-between;
    padding: 13px 2px;
    border-bottom: 1px solid var(--c-line);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -.01em;
  }

  .site-nav__link::after { display: none; }
  .site-nav__link[aria-current="page"] { color: var(--c-cyan); }
  .site-nav__no { font-size: 11px; color: var(--c-slate); }

  .site-nav__tools {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin: 20px 0 0;
    padding: 20px 0 0;
    border-left: 0;
    border-top: 1px solid var(--c-line);
  }

  .site-nav__tools .quick { justify-content: space-between; padding: 11px 13px; font-size: 13.5px; }
  .site-nav__tools .btn { justify-content: center; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: linear-gradient(180deg, var(--c-night), #030d0c);
  border-top: 1px solid var(--c-line);
  color: var(--c-slate);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(59, 240, 208, 0) 44%, var(--c-amber));
}

.footer-shell {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  grid-template-columns: 1fr;
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 64px) var(--pad) clamp(26px, 3vw, 40px);
}

@media (min-width: 700px) {
  .footer-shell { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1060px) {
  .footer-shell { grid-template-columns: 1.1fr 1.9fr 1.15fr; }
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }

.footer-brand__mark {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1;
  color: var(--c-night);
  background: var(--c-cyan);
  padding: 7px 10px;
  border-radius: var(--radius);
}

.footer-brand__name { font-size: 16px; font-weight: 700; color: var(--c-mint); letter-spacing: -.01em; }
.footer-brand__sub { font-size: 12px; letter-spacing: .12em; color: var(--c-slate); max-width: none; }
.footer-brand .btn { margin-top: 8px; }

.footer-cols {
  display: grid;
  gap: clamp(18px, 2.4vw, 32px);
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
}

.footer-col__heading {
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.footer-links li + li { margin-top: 9px; }

.footer-links a {
  font-size: 14px;
  color: var(--c-cool);
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.footer-links a:hover { color: var(--c-mint); border-bottom-color: var(--c-cyan); }

.footer-contact {
  padding: 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(94, 27, 46, .4), rgba(22, 36, 63, .42));
  box-shadow: var(--shadow-1);
}

.footer-contact__title {
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-amber);
}

.footer-contact__line {
  display: flex;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-cool);
  max-width: none;
}

.footer-contact__line + .footer-contact__line { margin-top: 7px; }
.footer-contact__key { flex: 0 0 auto; color: var(--c-slate); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px var(--pad) 28px;
  border-top: 1px solid var(--c-line);
  font-size: 12.5px;
  letter-spacing: .04em;
}

.footer-legal__icp { font-family: var(--font-mono); color: var(--c-slate); }
.footer-legal__copy { color: var(--c-slate); }
.footer-legal__links { display: flex; flex-wrap: wrap; gap: 16px; margin-left: auto; }
.footer-legal__links a { color: var(--c-cool); }
.footer-legal__links a:hover { color: var(--c-cyan); }

/* ---------- 8. 内容组件 ---------- */
.score {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(6, 25, 23, .92), rgba(11, 42, 38, .7));
  box-shadow: var(--shadow-1);
}

.score__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--c-mint);
  transition: color .3s ease;
}

.score__label {
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-slate);
}

.score--amber .score__value { color: var(--c-amber); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border: 1px solid rgba(59, 240, 208, .35);
  border-radius: 3px;
  background: rgba(59, 240, 208, .08);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.tag--amber {
  color: var(--c-amber);
  border-color: rgba(255, 162, 58, .42);
  background: rgba(255, 162, 58, .1);
}

.card {
  position: relative;
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(22, 36, 63, .42), rgba(11, 42, 38, .74));
  box-shadow: var(--shadow-1);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: rgba(59, 240, 208, .4); }

.card--float { margin-left: calc(-1 * var(--gap)); box-shadow: var(--shadow-2); }

@media (max-width: 899px) {
  .card--float { margin-left: 0; }
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.card__title { font-size: 17px; }
.card__meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em; color: var(--c-slate); }
.card__body { font-size: 14.5px; color: var(--c-cool); }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: rgba(6, 25, 23, .5);
  font-size: 13px;
  color: var(--c-cool);
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}

.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-line);
  transition: background .18s ease;
}

.chip:hover { border-color: var(--c-cyan); color: var(--c-mint); }

.chip[aria-pressed="true"] {
  border-color: var(--c-cyan);
  color: var(--c-mint);
  background: rgba(59, 240, 208, .1);
}

.chip[aria-pressed="true"]::before { background: var(--c-cyan); }

.filter-bar {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0 clamp(14px, 2vw, 20px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(22, 36, 63, .35);
  transition: max-height .28s ease, opacity .28s ease, padding .28s ease;
}

.filter-bar[data-open="true"] {
  max-height: 460px;
  opacity: 1;
  padding: clamp(14px, 2vw, 20px);
}

.filter-bar__inner { display: flex; flex-direction: column; gap: 12px; }

.timeline { position: relative; padding-left: 22px; }

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--c-line);
}

.timeline__item { position: relative; padding-bottom: 20px; }

.timeline__dot {
  position: absolute;
  left: -22px;
  top: 6px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  background: var(--c-night);
}

.timeline__item[aria-current="true"] .timeline__dot {
  border-color: var(--c-cyan);
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(59, 240, 208, .16);
}

.timeline__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-slate);
}

.path { display: grid; gap: 10px; }

.path__step {
  padding: 12px 16px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(11, 42, 38, .6);
}

.path__node {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.path__note { font-size: 14px; color: var(--c-cool); }

.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, var(--c-indigo), var(--c-night));
  box-shadow: var(--shadow-1);
}

.media__frame { position: relative; width: 100%; aspect-ratio: 16 / 9; }
.media__frame img { width: 100%; height: 100%; object-fit: cover; }
.media--portrait .media__frame { aspect-ratio: 3 / 4; }

.media--tint .media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(11, 42, 38, .6), rgba(255, 162, 58, .24));
  pointer-events: none;
}

.media__caption {
  padding: 10px 12px;
  border-top: 1px solid var(--c-line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-slate);
}

@media (max-width: 640px) {
  .media__frame { aspect-ratio: 4 / 3; }
  .media--portrait .media__frame { aspect-ratio: 3 / 4; }
}

.fav-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-slate);
  font-size: 13px;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}

.fav-mark:hover { border-color: var(--c-amber); color: var(--c-amber); }

.fav-mark[aria-pressed="true"] {
  color: var(--c-amber);
  border-color: rgba(255, 162, 58, .6);
  background: rgba(255, 162, 58, .12);
}

[data-fav-item][data-fav] { border-color: rgba(255, 162, 58, .55); }

html[data-fav-filter="on"] [data-fav-scope] [data-fav-item]:not([data-fav]) { display: none; }

.reveal { opacity: 0; transform: translateY(8px); transition: opacity .24s ease, transform .24s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 9. 自适应细节 ---------- */
@media (max-width: 639px) {
  body { font-size: 15px; }
  .brand__sub { display: none; }
  .section-head { flex-wrap: wrap; align-items: baseline; }
  .footer-legal__links { margin-left: 0; }
}

@media (min-width: 640px) and (max-width: 899px) {
  .footer-shell { grid-template-columns: 1fr 1fr; }
}

/* ---------- 10. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .reveal { opacity: 1; transform: none; }
  .card:hover { transform: none; }
  .btn:hover { transform: none; }
}