/* ============================================================
   赢驰科技 YINGCHI — 闲置奢侈品直播买卖平台
   潮奢黑金风格 · 共享样式系统
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  --bg-deep: #0b0b0c;          /* 页面深底 */
  --bg-panel: #131316;         /* 卡片面板 */
  --bg-panel-2: #1a1a1e;       /* 次级面板 */
  --line: rgba(201, 160, 99, 0.22);   /* 金色细线 */
  --line-soft: rgba(255, 255, 255, 0.08);
  --gold: #c9a063;             /* 主金 */
  --gold-light: #e8c98a;       /* 亮金 */
  --gold-deep: #8a6b3f;        /* 暗金 */
  --ink: #f5f1e8;              /* 米白正文 */
  --ink-dim: #a39b86;          /* 次级文字 */
  --ink-faint: #6f6a5c;        /* 弱文字 */
  --serif: "Noto Serif SC", "Songti SC", "SimSun", "STSong", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --radius: 4px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--gold); color: #0b0b0c; }

/* 细滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: #2c2c30; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(72px, 9vw, 120px) 0; position: relative; }
.section--alt { background: var(--bg-panel); }

/* 区块头部 */
.sec-head { text-align: center; margin-bottom: clamp(40px, 6vw, 72px); }
.sec-eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 12px; letter-spacing: 0.42em; color: var(--gold);
  text-transform: uppercase; margin-bottom: 18px;
}
.sec-eyebrow::before, .sec-eyebrow::after {
  content: ""; width: 34px; height: 1px; background: linear-gradient(90deg, transparent, var(--gold));
}
.sec-eyebrow::after { background: linear-gradient(90deg, var(--gold), transparent); }
.sec-title { font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); font-weight: 600; letter-spacing: 0.08em; line-height: 1.35; }
.sec-sub { margin-top: 16px; color: var(--ink-dim); max-width: 640px; margin-inline: auto; font-size: 15px; }
.sec-head--left { text-align: left; }
.sec-head--left .sec-sub { margin-inline: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 40px; font-size: 14px; letter-spacing: 0.22em;
  border: 1px solid var(--gold); color: var(--gold-light);
  background: transparent; transition: all 0.35s ease; border-radius: var(--radius);
  text-transform: uppercase;
}
.btn .arw { transition: transform 0.35s ease; }
.btn:hover { background: var(--gold); color: #0b0b0c; }
.btn:hover .arw { transform: translateX(6px); }
.btn--solid { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: #0b0b0c; border-color: transparent; box-shadow: 0 12px 32px rgba(201, 160, 99, 0.25); }
.btn--solid:hover { box-shadow: 0 16px 40px rgba(201, 160, 99, 0.4); transform: translateY(-2px); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.35); color: var(--ink); }
.btn--ghost:hover { border-color: var(--gold); color: var(--gold-light); background: transparent; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
  padding: 26px 0;
}
.nav--scrolled {
  background: rgba(11, 11, 12, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line), 0 10px 40px rgba(0, 0, 0, 0.4);
  padding: 14px 0;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: baseline; gap: 10px; }
.logo__zh { font-family: var(--serif); font-size: 24px; letter-spacing: 0.18em; font-weight: 700; }
.logo__zh b { color: var(--gold-light); font-weight: 700; }
.logo__en { font-size: 10px; letter-spacing: 0.5em; color: var(--ink-dim); text-transform: uppercase; }
.nav__links { display: flex; align-items: center; gap: clamp(18px, 3vw, 40px); }
.nav__links a {
  font-size: 14px; letter-spacing: 0.14em; color: var(--ink); position: relative; padding: 6px 0;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: var(--gold); transition: width 0.35s ease;
}
.nav__links a:hover, .nav__links a.is-active { color: var(--gold-light); }
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }
.nav__cta { padding: 10px 26px; font-size: 13px; }

/* 汉堡 */
.nav__burger { display: none; background: none; border: 0; width: 42px; height: 42px; position: relative; z-index: 102; }
.nav__burger span { display: block; width: 22px; height: 1.5px; background: var(--ink); margin: 5px auto; transition: all 0.3s ease; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 78% 18%, rgba(201, 160, 99, 0.16), transparent 62%),
    radial-gradient(700px 520px at 12% 82%, rgba(201, 160, 99, 0.10), transparent 60%),
    linear-gradient(180deg, #0d0d0f 0%, #0b0b0c 60%, #101014 100%);
}
.hero::after { /* 底部渐隐衔接 */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 160px;
  background: linear-gradient(180deg, transparent, var(--bg-deep));
}
.hero__deco { position: absolute; inset: 0; pointer-events: none; }
.hero__deco svg { position: absolute; opacity: 0.5; }
.hero__deco .d-bag { right: 6%; top: 16%; width: 210px; }
.hero__deco .d-watch { right: 22%; bottom: 12%; width: 150px; opacity: 0.34; }
.hero__deco .d-ring { right: 3%; bottom: 26%; width: 96px; opacity: 0.42; }
.hero__inner { position: relative; z-index: 2; padding-top: 120px; padding-bottom: 80px; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px;
  border: 1px solid var(--line); padding: 8px 22px; border-radius: 40px;
  font-size: 12px; letter-spacing: 0.3em; color: var(--gold-light); margin-bottom: 34px;
}
.hero__tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }
.hero__title {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(42px, 7vw, 88px); line-height: 1.18; letter-spacing: 0.06em;
}
.hero__title .gold { background: linear-gradient(120deg, #f0d9a8 0%, var(--gold) 45%, #a8823f 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__title .thin { font-weight: 400; color: var(--ink-dim); font-size: 0.62em; display: block; letter-spacing: 0.3em; margin-top: 14px; }
.hero__desc { margin-top: 30px; max-width: 560px; color: var(--ink-dim); font-size: 16px; }
.hero__actions { margin-top: 44px; display: flex; gap: 18px; flex-wrap: wrap; }
.hero__stats {
  margin-top: clamp(48px, 7vw, 90px); display: grid;
  grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.stat { background: rgba(11, 11, 12, 0.85); padding: 30px 20px; text-align: center; }
.stat__num { font-family: var(--serif); font-size: clamp(26px, 3.2vw, 40px); font-weight: 700; color: var(--gold-light); letter-spacing: 0.04em; }
.stat__num sup { font-size: 0.55em; color: var(--gold); }
.stat__label { margin-top: 8px; font-size: 12px; letter-spacing: 0.24em; color: var(--ink-dim); }

/* ---------- 品牌故事 ---------- */
.brand { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 6vw, 88px); align-items: center; }
.brand__visual { position: relative; }
.brand__frame { border: 1px solid var(--line); padding: clamp(20px, 3vw, 36px); position: relative; }
.brand__frame::before {
  content: ""; position: absolute; inset: -1px; border: 1px solid var(--gold-deep); pointer-events: none;
  transform: translate(10px, 10px); z-index: -1;
}
.brand__panel { background: linear-gradient(150deg, #17171b, #0f0f12); padding: clamp(28px, 4vw, 48px); }
.brand__panel .bp-title { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 32px); letter-spacing: 0.1em; color: var(--gold-light); }
.brand__panel .bp-sub { margin-top: 6px; font-size: 12px; letter-spacing: 0.3em; color: var(--ink-dim); }
.brand__panel ul { margin-top: 26px; display: grid; gap: 14px; }
.brand__panel li { display: flex; gap: 12px; font-size: 14px; color: var(--ink-dim); align-items: flex-start; }
.brand__panel li b { color: var(--ink); font-weight: 600; }
.brand__panel li::before { content: "◆"; color: var(--gold); font-size: 9px; transform: translateY(5px); flex: none; }
.brand__text h2 { font-family: var(--serif); font-size: clamp(26px, 3.4vw, 40px); line-height: 1.4; letter-spacing: 0.06em; }
.brand__text h2 em { font-style: normal; color: var(--gold-light); }
.brand__text p { margin-top: 22px; color: var(--ink-dim); font-size: 15px; text-align: justify; }
.brand__text p + p { margin-top: 14px; }
.brand__marks { margin-top: 30px; display: flex; gap: 40px; flex-wrap: wrap; }
.brand__marks div { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-dim); letter-spacing: 0.12em; }
.brand__marks i { width: 26px; height: 26px; border: 1px solid var(--gold); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-style: normal; color: var(--gold-light); font-size: 11px; }

/* ---------- 业务板块 ---------- */
.biz { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 36px); }
.biz__card {
  position: relative; overflow: hidden; border: 1px solid var(--line-soft);
  background: var(--bg-panel); padding: clamp(32px, 4vw, 56px);
  transition: transform 0.45s ease, border-color 0.45s ease, box-shadow 0.45s ease;
}
.biz__card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: var(--shadow); }
.biz__card::after {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity 0.45s ease;
}
.biz__card:hover::after { opacity: 1; }
.biz__icon { width: 64px; height: 64px; margin-bottom: 26px; }
.biz__icon svg { width: 100%; height: 100%; stroke: var(--gold); }
.biz__no { font-size: 12px; letter-spacing: 0.4em; color: var(--gold-deep); }
.biz__title { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 30px); margin: 10px 0 16px; letter-spacing: 0.08em; }
.biz__desc { color: var(--ink-dim); font-size: 14.5px; }
.biz__list { margin-top: 24px; display: grid; gap: 10px; }
.biz__list li { display: flex; gap: 10px; font-size: 13.5px; color: var(--ink-dim); }
.biz__list li::before { content: "＋"; color: var(--gold); flex: none; }
.biz__more { margin-top: 32px; }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.step { background: var(--bg-panel); padding: 38px 26px; position: relative; }
.step__num { font-family: var(--serif); font-size: 46px; font-weight: 700; color: transparent; -webkit-text-stroke: 1px var(--gold-deep); line-height: 1; }
.step__title { margin-top: 18px; font-size: 16px; letter-spacing: 0.12em; color: var(--gold-light); }
.step__desc { margin-top: 10px; font-size: 13.5px; color: var(--ink-dim); }

/* ---------- 主播 / 团队卡片 ---------- */
.hosts { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 32px); }
.host {
  border: 1px solid var(--line-soft); background: var(--bg-panel); overflow: hidden;
  transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
.host:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: var(--shadow); }
.host__ava {
  height: 220px; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(240px 160px at 70% 20%, rgba(201, 160, 99, 0.18), transparent 70%),
    linear-gradient(160deg, #1b1b1f, #101013);
  border-bottom: 1px solid var(--line-soft); position: relative;
}
.host__ava svg { width: 110px; height: 110px; stroke: var(--gold); }
.host__ava .tag {
  position: absolute; top: 16px; right: 16px; border: 1px solid var(--line);
  color: var(--gold-light); font-size: 11px; letter-spacing: 0.2em; padding: 4px 12px;
}
.host__body { padding: 24px 26px 30px; }
.host__name { font-family: var(--serif); font-size: 20px; letter-spacing: 0.1em; }
.host__role { margin-top: 4px; font-size: 12px; letter-spacing: 0.26em; color: var(--gold); }
.host__bio { margin-top: 14px; font-size: 13.5px; color: var(--ink-dim); }
.host__meta { margin-top: 16px; font-size: 12px; color: var(--ink-faint); letter-spacing: 0.08em; }

/* ---------- 加入我们 ---------- */
.careers { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: start; }
.careers__text h2 { font-family: var(--serif); font-size: clamp(26px, 3.2vw, 38px); letter-spacing: 0.06em; line-height: 1.4; }
.careers__text h2 em { font-style: normal; color: var(--gold-light); }
.careers__text p { margin-top: 20px; color: var(--ink-dim); font-size: 15px; }
.careers__culture { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.careers__culture span {
  border: 1px solid var(--line); color: var(--gold-light); padding: 8px 20px;
  font-size: 13px; letter-spacing: 0.3em;
}
.perks { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.perk { background: var(--bg-panel); padding: 24px 22px; }
.perk__t { font-size: 14px; letter-spacing: 0.1em; color: var(--gold-light); display: flex; gap: 10px; align-items: center; }
.perk__t::before { content: "◆"; font-size: 8px; color: var(--gold); }
.perk__d { margin-top: 8px; font-size: 12.5px; color: var(--ink-dim); }

/* ---------- 岗位列表 ---------- */
.jobs { border-top: 1px solid var(--line-soft); }
.job {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 26px 6px; border-bottom: 1px solid var(--line-soft); cursor: pointer;
  transition: background 0.3s ease, padding 0.3s ease;
}
.job:hover { background: rgba(201, 160, 99, 0.05); padding-left: 16px; padding-right: 16px; }
.job__l { display: flex; align-items: center; gap: 26px; }
.job__t { font-family: var(--serif); font-size: 18px; letter-spacing: 0.08em; }
.job__d { font-size: 12.5px; color: var(--ink-dim); letter-spacing: 0.1em; }
.job__r { display: flex; align-items: center; gap: 20px; color: var(--ink-dim); font-size: 13px; }
.job__r .arw { color: var(--gold); }

/* ---------- 联系 ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.cbox { background: var(--bg-panel); padding: clamp(28px, 3.4vw, 44px); }
.cbox__k { font-size: 12px; letter-spacing: 0.32em; color: var(--gold); }
.cbox__v { margin-top: 12px; font-family: var(--serif); font-size: clamp(18px, 2vw, 24px); color: var(--ink); }
.cbox__v small { display: block; font-family: var(--sans); font-size: 12px; color: var(--ink-dim); margin-top: 6px; letter-spacing: 0.1em; }
.cbox__v.hl { color: var(--gold-light); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line-soft); padding: 64px 0 40px; background: #09090a; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer__brand p { margin-top: 18px; color: var(--ink-faint); font-size: 13px; max-width: 300px; }
.footer h4 { font-size: 13px; letter-spacing: 0.3em; color: var(--gold-light); margin-bottom: 20px; font-weight: 600; }
.footer ul { display: grid; gap: 12px; }
.footer ul a { font-size: 13.5px; color: var(--ink-dim); transition: color 0.3s ease; }
.footer ul a:hover { color: var(--gold-light); }
.footer__addr { font-size: 13.5px; color: var(--ink-dim); line-height: 2; }
.footer__bottom {
  margin-top: 48px; padding-top: 26px; border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 12px; color: var(--ink-faint); letter-spacing: 0.1em;
}
.footer__bottom .icp a { color: var(--ink-faint); }
.footer__bottom .icp a:hover { color: var(--gold-light); }

/* ---------- 页面头部（子页） ---------- */
.page-hero {
  padding: 190px 0 90px; text-align: center; position: relative; overflow: hidden;
  background:
    radial-gradient(700px 400px at 50% -10%, rgba(201, 160, 99, 0.15), transparent 65%),
    linear-gradient(180deg, #0d0d0f, #0b0b0c);
}
.page-hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 100px; background: linear-gradient(180deg, transparent, var(--bg-deep)); }
.page-hero__eyebrow { font-size: 12px; letter-spacing: 0.42em; color: var(--gold); margin-bottom: 20px; }
.page-hero h1 { font-family: var(--serif); font-size: clamp(34px, 5vw, 60px); letter-spacing: 0.1em; font-weight: 700; }
.page-hero h1 .gold { background: linear-gradient(120deg, #f0d9a8, var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-hero p { margin: 18px auto 0; max-width: 620px; color: var(--ink-dim); font-size: 15px; }
.breadcrumb { margin-top: 26px; font-size: 12px; letter-spacing: 0.2em; color: var(--ink-faint); }
.breadcrumb a { color: var(--ink-dim); }
.breadcrumb a:hover { color: var(--gold-light); }
.breadcrumb i { font-style: normal; margin: 0 10px; }

/* ---------- 流程垂直步骤（子页） ---------- */
.vsteps { display: grid; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.vstep { display: grid; grid-template-columns: 120px 1fr; gap: 30px; background: var(--bg-panel); padding: 34px 30px; align-items: start; }
.vstep__no { font-family: var(--serif); font-size: 52px; font-weight: 700; color: transparent; -webkit-text-stroke: 1px var(--gold); line-height: 1; }
.vstep__body h3 { font-family: var(--serif); font-size: 22px; letter-spacing: 0.08em; color: var(--gold-light); }
.vstep__body p { margin-top: 12px; color: var(--ink-dim); font-size: 14.5px; }

/* ---------- 资质 / 信任标识 ---------- */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.trust__item { background: var(--bg-panel); padding: 36px 24px; text-align: center; }
.trust__item svg { width: 42px; height: 42px; margin: 0 auto 16px; stroke: var(--gold); }
.trust__item b { display: block; font-size: 15px; letter-spacing: 0.12em; color: var(--ink); font-weight: 600; }
.trust__item span { display: block; margin-top: 8px; font-size: 12.5px; color: var(--ink-dim); }

/* ---------- 双栏通用 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 88px); align-items: center; }
.split__text h2 { font-family: var(--serif); font-size: clamp(24px, 3vw, 36px); letter-spacing: 0.06em; line-height: 1.45; }
.split__text h2 em { font-style: normal; color: var(--gold-light); }
.split__text p { margin-top: 20px; color: var(--ink-dim); font-size: 15px; text-align: justify; }
.split__visual { position: relative; }
.split__frame { border: 1px solid var(--line); padding: clamp(20px, 3vw, 36px); position: relative; }
.split__frame::before { content: ""; position: absolute; inset: -1px; border: 1px solid var(--gold-deep); transform: translate(10px, 10px); z-index: -1; }
.split__panel { background: linear-gradient(150deg, #17171b, #0f0f12); padding: clamp(26px, 4vw, 44px); }

/* ---------- 列表（FAQ / 资质） ---------- */
.faq { border-top: 1px solid var(--line-soft); }
.faq__item { border-bottom: 1px solid var(--line-soft); }
.faq__q { width: 100%; background: none; border: 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 6px; font-size: 16px; letter-spacing: 0.06em; color: var(--ink); text-align: left; font-family: var(--serif); }
.faq__q .plus { color: var(--gold); font-size: 20px; font-style: normal; transition: transform 0.3s ease; }
.faq__item.is-open .plus { transform: rotate(45deg); }
.faq__a { max-height: 0; overflow: hidden; transition: max-height 0.45s ease; }
.faq__a p { padding: 0 6px 24px; color: var(--ink-dim); font-size: 14.5px; }

/* ---------- 联系表单 ---------- */
.form { display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label { font-size: 12px; letter-spacing: 0.24em; color: var(--ink-dim); display: block; margin-bottom: 8px; }
.form input, .form textarea, .form select {
  width: 100%; background: var(--bg-panel-2); border: 1px solid var(--line-soft);
  color: var(--ink); padding: 14px 16px; font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.3s ease; border-radius: 0;
}
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--gold); }
.form textarea { min-height: 140px; resize: vertical; }
.form select { appearance: none; }
.form .btn { width: 100%; }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.is-in { opacity: 1; transform: none; }
.reveal--d1 { transition-delay: 0.12s; }
.reveal--d2 { transition-delay: 0.24s; }
.reveal--d3 { transition-delay: 0.36s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .brand, .careers, .split { grid-template-columns: 1fr; }
  .brand__visual { order: -1; }
  .biz, .contact { grid-template-columns: 1fr; }
  .hosts { grid-template-columns: 1fr 1fr; }
  .hero__deco .d-bag { right: -8%; opacity: 0.3; }
}
@media (max-width: 820px) {
  .nav__links {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 340px);
    background: rgba(13, 13, 15, 0.98); backdrop-filter: blur(16px);
    flex-direction: column; justify-content: center; gap: 30px;
    transform: translateX(100%); transition: transform 0.45s ease;
    border-left: 1px solid var(--line);
  }
  .nav__links.is-open { transform: none; }
  .nav__links a { font-size: 17px; }
  .nav__burger { display: block; }
  .hero__stats { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .trust { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .vstep { grid-template-columns: 80px 1fr; padding: 26px 20px; }
}
@media (max-width: 560px) {
  .hero__stats, .steps, .trust, .hosts { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .hero__actions .btn { width: 100%; }
  .nav__cta { display: none; }
}