/* ─────────────────────────────────────────────────────────────
   首页 · 暗色编辑风
   立场：B 端要的不是热闹，是「看起来有人在认真做事」。
   所以：大留白、克制的强调色、所有主张旁边都放着边界。
   ───────────────────────────────────────────────────────────── */

body.home {
  --bg: #08090c;
  --bg-2: #0d0f14;
  --bg-3: #12151b;
  --hl: #1b1f27;
  --fg: #e9ecf1;
  --fg-2: #b7bec9;
  --dim: #7c8593;
  --dim-2: #576070;
  --acc: #6f9bff;
  --acc-2: #22d3ee;
  --gold: #e0b072;

  background: var(--bg);
  color: var(--fg);
  font-size: 15.5px;
  overflow-x: hidden;
}

body.home::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(1100px 620px at 78% -8%, rgba(111, 155, 255, .13), transparent 62%),
    radial-gradient(760px 520px at 8% 12%, rgba(34, 211, 238, .07), transparent 60%),
    radial-gradient(900px 700px at 50% 108%, rgba(224, 176, 114, .05), transparent 62%);
}

body.home::after {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(1200px 800px at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(1200px 800px at 50% 0%, #000 0%, transparent 78%);
}

body.home main, body.home .h-top, body.home .h-foot { position: relative; z-index: 1; }

/* ── 顶栏 ── */
.h-top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8, 9, 12, .78);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.h-top-in {
  display: flex; align-items: center; gap: 26px;
  height: 62px;
}

.h-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 680; letter-spacing: -.01em; font-size: 15.5px;
  margin-right: auto;
}

.h-brand i {
  width: 20px; height: 20px; border-radius: 6px; display: inline-block;
  background: linear-gradient(140deg, var(--acc), var(--acc-2));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .14) inset;
}

.h-nav { display: flex; gap: 22px; }

.h-nav a {
  font-size: 14px; color: var(--fg-2); position: relative;
  padding: 4px 0; transition: color .16s;
}

.h-nav a:hover { color: var(--fg); }

.h-nav a::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--acc); transition: right .22s ease;
}

.h-nav a:hover::after { right: 0; }

.h-cta {
  display: inline-flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 18px; border-radius: 999px;
  background: var(--fg); color: #0a0b0e;
  font-size: 13.5px; font-weight: 640; border: 0; cursor: pointer;
  transition: transform .16s, box-shadow .16s;
}

.h-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(255, 255, 255, .14); }

/* 顶栏电话：B 端最高转化的一个元素，必须一直看得见 */
.h-tel {
  display: inline-flex; align-items: center; gap: 7px; margin-right: 14px;
  font-size: 13.5px; font-weight: 620; letter-spacing: .01em;
  color: var(--fg-2); text-decoration: none; font-variant-numeric: tabular-nums;
  transition: color .16s;
}

.h-tel::before { content: '☎'; font-size: 12px; color: var(--acc-2); opacity: .9; }

.h-tel:hover { color: var(--acc-2); }

@media (max-width: 720px) { .h-tel { display: none; } }

/* ── 通用 ── */
.h-wrap { max-width: 1240px; margin: 0 auto; padding: 0 30px; }

.sec { padding: 118px 0 0; }
.sec:last-of-type { padding-bottom: 118px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--acc); font-weight: 600;
}

.eyebrow::before {
  content: ''; width: 22px; height: 1px; background: var(--acc); opacity: .6;
}

.sec-h {
  font-size: clamp(26px, 3.1vw, 40px);
  line-height: 1.24; letter-spacing: -.018em;
  margin: 18px 0 0; font-weight: 700; max-width: 20em;
}

.sec-note {
  color: var(--dim); font-size: 14.5px; line-height: 1.8;
  margin: 18px 0 0; max-width: 46em;
}

.sec-head { margin-bottom: 52px; }

/* 滚动出现 */
.rv { opacity: 0; transform: translateY(16px); transition: opacity .62s cubic-bezier(.22,.61,.36,1), transform .62s cubic-bezier(.22,.61,.36,1); }
.rv.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ── Hero ── */
.h-hero { padding: 84px 0 0; }

.h-hero .eyebrow { font-size: 13px; }

.h-hero h1 {
  font-size: clamp(34px, 5.1vw, 66px);
  line-height: 1.14; letter-spacing: -.028em;
  margin: 24px 0 0; font-weight: 760; max-width: 11.5em;
}

.h-hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, var(--acc) 6%, var(--acc-2) 52%, var(--gold) 96%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.h-lede {
  margin: 26px 0 0; font-size: 17px; line-height: 1.82;
  color: var(--fg-2); max-width: 34em;
}

.h-sub { margin: 14px 0 0; color: var(--dim); font-size: 14.5px; }

.h-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn-p, .btn-g {
  display: inline-flex; align-items: center; gap: 9px;
  height: 46px; padding: 0 24px; border-radius: 999px;
  font-size: 14.5px; font-weight: 640; transition: all .18s;
}

.btn-p { background: var(--fg); color: #0a0b0e; }
.btn-p:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(255, 255, 255, .16); }

.btn-g { border: 1px solid rgba(255, 255, 255, .16); color: var(--fg); background: none; cursor: pointer; font: inherit; font-size: 14.5px; font-weight: 640; }
.btn-g:hover { border-color: rgba(255, 255, 255, .34); background: rgba(255, 255, 255, .04); }

.h-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }

.h-pill {
  font-size: 12.5px; color: var(--fg-2);
  border: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .03);
  border-radius: 999px; padding: 6px 13px;
}

.h-pill::before { content: '✓ '; color: var(--acc-2); font-weight: 700; }

.h-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 372px; gap: 64px; align-items: start; }

.h-side {
  border: 1px solid rgba(255, 255, 255, .1);
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .016));
  border-radius: 18px; padding: 26px 24px;
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, .9);
}

.h-side .k { font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim-2); }

.h-side .v { font-size: 17px; line-height: 1.66; font-weight: 640; margin: 12px 0 0; letter-spacing: -.01em; }

.h-side .n { font-size: 13.4px; line-height: 1.78; color: var(--dim); margin: 16px 0 0; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .08); }

/* ── 三段 ── */
.h-what { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.wcard {
  border: 1px solid rgba(255, 255, 255, .09);
  background: rgba(255, 255, 255, .022);
  border-radius: 16px; padding: 28px 26px 26px;
  position: relative; overflow: hidden; transition: border-color .2s, transform .2s, background .2s;
}

.wcard:hover { border-color: rgba(111, 155, 255, .4); transform: translateY(-3px); background: rgba(111, 155, 255, .05); }

.wcard .n {
  font-family: var(--mono); font-size: 12px; color: var(--dim-2); letter-spacing: .1em;
}

.wcard .glyph {
  font-size: 46px; font-weight: 780; line-height: 1; margin: 14px 0 16px;
  background: linear-gradient(150deg, var(--fg) 20%, var(--dim) 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -.04em;
}

.wcard h3 { font-size: 17.5px; margin: 0 0 12px; font-weight: 660; letter-spacing: -.012em; line-height: 1.5; }

.wcard p { margin: 0; color: var(--dim); font-size: 14px; line-height: 1.82; }

.wcard .wtag {
  display: block; margin-top: 18px; padding: 16px 0 0; width: 100%;
  background: none; border: 0; border-top: 1px solid rgba(255, 255, 255, .08);
  border-radius: 0;
  font-size: 12.5px; color: var(--acc); font-family: var(--mono);
}

/* ── 四步 ── */
.h-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid rgba(255, 255, 255, .1); }

.mstep { display: block; padding: 30px 26px 30px 0; border-right: 1px solid rgba(255, 255, 255, .08); position: relative; }
.mstep:last-child { border-right: 0; }
.mstep:not(:first-child) { padding-left: 26px; }

.mstep .mn {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  background: rgba(111, 155, 255, .14); color: var(--acc);
  border: 1px solid rgba(111, 155, 255, .3);
}

.mstep h3 { font-size: 16px; margin: 18px 0 10px; font-weight: 650; }

.mstep p { margin: 0; color: var(--dim); font-size: 13.8px; line-height: 1.8; }

.mstep .mt { display: block; margin-top: 14px; font-family: var(--mono); font-size: 12px; color: var(--dim-2); }

/* ── 好处 ── */
.h-gains { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.gain {
  border: 1px solid rgba(255, 255, 255, .09); border-radius: 16px;
  padding: 26px 26px 22px; background: rgba(255, 255, 255, .02);
  display: flex; flex-direction: column;
}

.gain h3 { font-size: 16.5px; margin: 0 0 16px; font-weight: 660; letter-spacing: -.012em; line-height: 1.52; }

.gain .row { display: flex; gap: 11px; font-size: 13.8px; line-height: 1.8; }

.gain .row + .row { margin-top: 12px; }

.gain .lab {
  flex: none; width: 40px; height: 21px; margin-top: 3px;
  display: grid; place-items: center; border-radius: 5px;
  font-size: 11.5px; font-weight: 700;
}

.gain .why .lab { background: rgba(52, 211, 153, .14); color: #48e0a8; }
.gain .why { color: var(--fg-2); }

.gain .lim .lab { background: rgba(224, 176, 114, .14); color: var(--gold); }
.gain .lim { color: var(--dim); }

/* ── 场景 ── */
.h-scenes { display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 32px; align-items: start; }

.scene-tabs { display: flex; flex-direction: column; gap: 4px; position: sticky; top: 92px; }

.scene-tab {
  text-align: left; border: 1px solid transparent; background: transparent;
  color: var(--dim); font-size: 14.5px; font-family: inherit;
  padding: 11px 15px; border-radius: 10px; cursor: pointer; transition: all .16s;
  display: flex; align-items: center; gap: 9px;
}

.scene-tab:hover { color: var(--fg-2); background: rgba(255, 255, 255, .03); }

.scene-tab.on {
  color: var(--fg); background: rgba(111, 155, 255, .1);
  border-color: rgba(111, 155, 255, .3); font-weight: 620;
}

.scene-tab .ok { width: 6px; height: 6px; border-radius: 50%; background: var(--acc-2); flex: none; }

.scene-panel {
  border: 1px solid rgba(255, 255, 255, .09); border-radius: 16px;
  padding: 30px 30px 26px; background: rgba(255, 255, 255, .022);
}

.scene-panel h3 { margin: 0 0 24px; font-size: 20px; font-weight: 680; letter-spacing: -.015em; }

.scene-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }

.scene-cols h4 {
  margin: 0 0 13px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--dim-2); font-weight: 600;
}

.scene-cols ul { margin: 0; padding: 0; list-style: none; }

.scene-cols li {
  position: relative; padding-left: 19px; font-size: 14px; line-height: 1.75;
  color: var(--fg-2); margin-bottom: 9px;
}

.scene-cols .have li::before { content: '·'; position: absolute; left: 5px; color: var(--dim-2); font-weight: 800; }
.scene-cols .get li::before { content: '→'; position: absolute; left: 0; color: var(--acc-2); font-size: 12px; top: 2px; }

.scene-go {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 22px;
  font-size: 14px; color: var(--acc); font-weight: 620;
  border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 18px; width: 100%;
}

.scene-go:hover { color: var(--acc-2); }

/* ── 对比表 ── */
.cmp { border: 1px solid rgba(255, 255, 255, .09); border-radius: 16px; overflow: hidden; }

.cmp table { width: 100%; border-collapse: collapse; font-size: 14px; }

.cmp th, .cmp td { padding: 15px 20px; text-align: left; border-bottom: 1px solid rgba(255, 255, 255, .07); }

.cmp thead th {
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--dim); font-weight: 600; background: rgba(255, 255, 255, .026);
}

.cmp tbody tr:last-child td { border-bottom: 0; }

.cmp td:first-child { color: var(--dim); }
.cmp td.mid { color: var(--dim-2); }
.cmp td.us { color: var(--fg); font-weight: 600; background: rgba(111, 155, 255, .075); }

.cmp thead th:last-child { color: var(--acc); }

/* ── 实例 ── */
.h-cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.ccard {
  display: block; border: 1px solid rgba(255, 255, 255, .09); border-radius: 16px;
  padding: 26px 26px 22px; background: rgba(255, 255, 255, .022);
  transition: border-color .2s, transform .2s, background .2s;
}

a.ccard:hover { border-color: rgba(111, 155, 255, .45); transform: translateY(-3px); background: rgba(111, 155, 255, .05); }

.ccard.dim { opacity: .5; }

.ccard .n { font-family: var(--mono); font-size: 12px; color: var(--dim-2); letter-spacing: .1em; }

.ccard h3 { font-size: 18px; margin: 14px 0 11px; font-weight: 660; letter-spacing: -.014em; }

.ccard p { margin: 0; color: var(--dim); font-size: 14px; line-height: 1.8; }

.ccard .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }

.ccard .tg {
  font-size: 12px; padding: 4px 11px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .12); color: var(--dim);
}

.ccard .tg.live { border-color: rgba(34, 211, 238, .45); color: var(--acc-2); background: rgba(34, 211, 238, .08); }

/* ── FAQ ── */
.h-faq { border-top: 1px solid rgba(255, 255, 255, .1); }

.faq-item { border-bottom: 1px solid rgba(255, 255, 255, .08); }

.faq-q {
  width: 100%; text-align: left; background: none; border: 0; color: var(--fg);
  font-family: inherit; font-size: 16.5px; font-weight: 620; letter-spacing: -.012em;
  padding: 24px 44px 24px 0; cursor: pointer; position: relative;
}

.faq-q::after {
  content: '+'; position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  color: var(--dim); font-size: 20px; font-weight: 400; transition: transform .22s, color .22s;
}

.faq-item.on .faq-q::after { transform: translateY(-50%) rotate(45deg); color: var(--acc); }

.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .32s ease;
  color: var(--dim); font-size: 14.6px; line-height: 1.88;
}

.faq-a > div { padding: 0 60px 26px 0; }

/* ── 联系 ── */
.h-contact {
  border: 1px solid rgba(255, 255, 255, .1); border-radius: 22px;
  padding: 52px 48px;
  display: grid; grid-template-columns: minmax(0, 1fr) 268px; gap: 54px; align-items: start;
  background:
    radial-gradient(760px 300px at 88% 0%, rgba(111, 155, 255, .14), transparent 64%),
    linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
}

.h-contact h2 { font-size: clamp(24px, 3vw, 36px); margin: 16px 0 0; font-weight: 720; letter-spacing: -.02em; }

.h-contact .lede { color: var(--fg-2); font-size: 15.5px; line-height: 1.86; margin: 18px 0 0; max-width: 36em; }

.h-contact ul { margin: 26px 0 0; padding: 0; list-style: none; }

.h-contact li { position: relative; padding-left: 22px; color: var(--dim); font-size: 14.2px; line-height: 1.9; }

.h-contact li::before { content: '—'; position: absolute; left: 0; color: var(--acc); }

.hc-acts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hc-card {
  border: 1px solid rgba(255, 255, 255, .13); border-radius: 18px;
  padding: 24px 22px 20px; text-align: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
}

.hc-label { font-size: 12.5px; letter-spacing: .1em; color: var(--dim); }

.hc-phone {
  display: block; margin-top: 10px; font-size: 25px; font-weight: 720; letter-spacing: -.01em;
  color: var(--fg); text-decoration: none; font-variant-numeric: tabular-nums;
}

.hc-phone:hover { color: var(--acc-2); }

.hc-wx { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }

.hc-wx-label { font-size: 12.5px; color: var(--dim); }

.hc-wx-id { font-size: 13px; color: var(--fg-2); font-variant-numeric: tabular-nums; }

.hc-qr {
  width: 150px; height: 150px; margin: 18px auto 0; display: block;
  border-radius: 12px; background: #fff; padding: 8px;
}

.hc-qr-note { margin-top: 12px; font-size: 12.5px; line-height: 1.7; color: var(--dim); }

.hc-hours { margin-top: 10px; font-size: 12px; line-height: 1.7; color: rgba(255, 255, 255, .32); }

.btn-g.ok { border-color: rgba(34, 211, 238, .5); color: var(--acc-2); }

@media (max-width: 900px) {
  .h-contact { grid-template-columns: 1fr; gap: 34px; }
  .hc-card { order: 2; }
}

/* ── 页脚 ── */
.h-foot { border-top: 1px solid rgba(255, 255, 255, .08); margin-top: 96px; padding: 34px 0 46px; }

.h-foot-in { display: flex; flex-wrap: wrap; gap: 14px 30px; align-items: center; font-size: 12.8px; color: var(--dim-2); }

.h-foot-in .sp { margin-left: auto; }

/* ── 响应式 ── */
@media (max-width: 1080px) {
  .h-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .h-what { grid-template-columns: 1fr; }
  .h-steps { grid-template-columns: 1fr 1fr; }
  .mstep { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .08); padding: 26px 0; }
  .mstep:not(:first-child) { padding-left: 0; }
  .h-gains, .h-cases { grid-template-columns: 1fr; }
  .h-scenes { grid-template-columns: 1fr; }
  .scene-tabs { position: static; flex-direction: row; flex-wrap: wrap; }
  .scene-cols { grid-template-columns: 1fr; gap: 22px; }
  .h-contact { padding: 38px 28px; }
  .sec { padding-top: 84px; }
}