/* ============================================================
   60cp.com.cn — 名爵客服中心
   base.css : design tokens + shared chrome (header / footer / buttons)
   ============================================================ */

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

:root {
  --bg: #070a14;
  --bg-2: #0b1020;
  --bg-3: #101728;
  --panel: rgba(255, 255, 255, .045);
  --panel-strong: rgba(255, 255, 255, .07);
  --line: rgba(255, 255, 255, .09);
  --line-strong: rgba(255, 255, 255, .16);
  --text: #e9edf7;
  --muted: #94a1bd;
  --muted-2: #6d7a96;
  --gold: #e0b660;
  --gold-2: #f6dfa4;
  --gold-deep: #b98a34;
  --green: #46d39a;
  --accent: #e0b660;
  --accent-soft: rgba(224, 182, 96, .14);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, .9);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(224, 182, 96, .10), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(76, 111, 255, .08), transparent 55%),
    var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }
::selection { background: rgba(224, 182, 96, .3); }

.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

/* ---------- skip link ---------- */
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--gold); color: #171104; padding: 10px 16px; border-radius: 10px;
  font-weight: 700; transition: top .2s;
}
.skip:focus { top: 12px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  background: rgba(7, 10, 20, .74);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; gap: 26px;
  min-height: 70px;
}
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px; letter-spacing: .02em;
  color: #1a1305;
  background: linear-gradient(145deg, var(--gold-2), var(--gold) 55%, var(--gold-deep));
  box-shadow: 0 8px 22px -8px rgba(224, 182, 96, .8), inset 0 1px 0 rgba(255,255,255,.5);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 17px; letter-spacing: .12em; }
.brand-text small { font-size: 9px; letter-spacing: .24em; color: var(--muted-2); margin-top: 4px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 8px 12px; border-radius: 9px; font-size: 14px; color: var(--muted);
  transition: color .2s, background .2s; white-space: nowrap;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--panel); }

.header-cta {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 10px; font-size: 13.5px; font-weight: 600;
  border: 1px solid rgba(224, 182, 96, .38); color: var(--gold-2);
  background: rgba(224, 182, 96, .08);
  transition: background .2s, border-color .2s, transform .2s;
}
.header-cta:hover { background: rgba(224, 182, 96, .16); border-color: rgba(224, 182, 96, .6); transform: translateY(-1px); }
.header-cta svg { width: 15px; height: 15px; }

.nav-toggle {
  display: none; width: 42px; height: 42px; margin-left: auto;
  border-radius: 10px; border: 1px solid var(--line); background: var(--panel);
  color: var(--text); cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 17px; height: 1.5px; background: currentColor;
  position: relative; transition: transform .25s, opacity .25s;
}
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-5px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 12px; font-size: 15px; font-weight: 700;
  border: 1px solid transparent; cursor: pointer; line-height: 1.2;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn-gold {
  color: #191204;
  background: linear-gradient(140deg, #f8e6b3, var(--gold) 52%, #c9973f);
  box-shadow: 0 16px 36px -16px rgba(224, 182, 96, .85), inset 0 1px 0 rgba(255,255,255,.55);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 22px 46px -18px rgba(224, 182, 96, .95); }
.btn-ghost {
  color: var(--text); background: rgba(255, 255, 255, .05);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .09); border-color: rgba(255,255,255,.3); }
.btn-room {
  color: var(--gold-2); background: rgba(224, 182, 96, .06);
  border-color: rgba(224, 182, 96, .35); cursor: default;
}
.btn-room:hover { transform: none; }
.btn-room .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 4px rgba(70, 211, 154, .14); flex: none;
}
.btn-sm { padding: 10px 18px; font-size: 13.5px; border-radius: 10px; }

/* ---------- section chrome ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .7; }
.section { padding: 92px 0; }
.section-head { max-width: 660px; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 16px; }
.lead { color: var(--muted); font-size: 16.5px; }
.muted { color: var(--muted); }
.gold { color: var(--gold-2); }

.card {
  background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.025));
  border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .25s, transform .25s, background .25s;
}
.card:hover { border-color: rgba(224, 182, 96, .32); transform: translateY(-3px); }

.tag {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  font-size: 11.5px; font-weight: 600; letter-spacing: .06em;
  color: var(--gold-2); background: rgba(224, 182, 96, .1);
  border: 1px solid rgba(224, 182, 96, .22);
}

/* ---------- support CTA (shared) ---------- */
.support {
  position: relative; overflow: hidden;
  border-radius: 26px; border: 1px solid rgba(224,182,96,.22);
  background:
    radial-gradient(600px 280px at 88% 0%, rgba(224,182,96,.14), transparent 60%),
    linear-gradient(150deg, #101728, #0a0f1e);
  padding: 56px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center;
}
.support h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
.support p { color: var(--muted); font-size: 15px; max-width: 520px; }
.support-actions { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.support-actions .tg {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 22px; border-radius: 12px; font-weight: 700; font-size: 15px;
  color: #0b1220; background: linear-gradient(140deg, #f8e6b3, var(--gold) 55%, #c9973f);
  transition: transform .2s, box-shadow .2s;
}
.support-actions .tg:hover { transform: translateY(-2px); box-shadow: 0 18px 38px -18px rgba(224,182,96,.9); }
.support-actions .tg svg { width: 18px; height: 18px; }
.support-actions small { text-align: center; font-size: 12px; color: var(--muted-2); }

/* ---------- related links ---------- */
.related { padding: 78px 0; border-top: 1px solid var(--line); }
.related-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 26px; flex-wrap: wrap; }
.related-head h2 { font-size: clamp(22px, 2.6vw, 30px); }
.related-head a { font-size: 14px; color: var(--gold-2); }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.related-card {
  padding: 20px 20px 18px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--panel);
  transition: border-color .2s, background .2s, transform .2s;
  display: flex; flex-direction: column; gap: 7px;
}
.related-card:hover { border-color: rgba(224, 182, 96, .35); background: var(--panel-strong); transform: translateY(-2px); }
.related-card strong { font-size: 15px; }
.related-card span { font-size: 13px; color: var(--muted); line-height: 1.6; }
.related-card em { font-style: normal; font-size: 12px; color: var(--gold); letter-spacing: .04em; margin-top: auto; padding-top: 8px; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.015), rgba(0,0,0,.35));
  padding: 64px 0 26px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 42px;
  padding-bottom: 44px;
}
.footer-brand p { color: var(--muted); font-size: 13.5px; margin-top: 16px; max-width: 300px; }
.footer-col h3 { font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; font-weight: 700; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: var(--muted); transition: color .2s; }
.footer-col a:hover { color: var(--gold-2); }
.footer-tg {
  display: inline-flex; align-items: center; gap: 9px; margin-top: 4px;
  padding: 10px 14px; border-radius: 10px; font-size: 14px;
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
}
.footer-tg:hover { border-color: rgba(224,182,96,.4); }
.footer-tg svg { width: 16px; height: 16px; color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--line); padding-top: 24px;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--muted-2);
}

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; }
}

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 14px 20px 20px; margin: 0;
    background: #080b16;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 50px -20px rgba(0, 0, 0, .9);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 10px; font-size: 15px; }
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .header-inner { min-height: 64px; }
  .section { padding: 68px 0; }
  .support { grid-template-columns: 1fr; gap: 34px; padding: 38px 28px; }
}
@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; }
  .btn { width: 100%; }
  .support { padding: 30px 20px; border-radius: 20px; }
}