/* 本地通官网 · 2026-10-31
   设计原则：移动优先（视频号 90% 手机打开）· 零外部依赖 · 首屏 3 秒讲清做什么 */

:root{
  --ink:#0B0E13;
  --ink-2:#151A23;
  --ink-3:#1E2530;
  --gold:#E0A44B;
  --gold-d:#B9822F;
  --paper:#FBFAF7;
  --paper-2:#F3F0EA;
  --line:#E5E0D6;
  --line-d:#2A313D;
  --text:#1A1D23;
  --muted:#6B7280;
  --muted-l:#9AA3B0;
  --ok:#2E8B57;
  --warn:#C2410C;
  --r:16px;
  --shadow:0 1px 2px rgba(16,20,28,.04),0 8px 28px rgba(16,20,28,.06);
  --max:1120px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.sec{padding:64px 0}
.sec--tight{padding:44px 0}
.sec--paper{background:var(--paper-2)}
.sec--ink{background:var(--ink);color:#EDEFF3}
.sec--ink .muted{color:var(--muted-l)}

.muted{color:var(--muted)}
.small{font-size:14px}
.xs{font-size:12.5px}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(11,14,19,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav__in{display:flex;align-items:center;gap:16px;height:58px}
.brand{display:flex;align-items:center;gap:9px;color:#fff;font-weight:600;font-size:15.5px;letter-spacing:.02em}
.brand__mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(145deg,var(--gold),var(--gold-d));
  display:grid;place-items:center;color:#1A1206;font-size:13px;font-weight:800;
}
.nav__links{display:none;gap:22px;margin-left:auto}
.nav__links a{color:rgba(255,255,255,.72);font-size:14.5px;transition:color .18s}
.nav__links a:hover{color:#fff}
.nav__cta{margin-left:auto}
@media(min-width:820px){
  .nav__links{display:flex}
  .nav__cta{margin-left:0}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .14s,background .18s,border-color .18s,color .18s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn--gold{background:linear-gradient(150deg,var(--gold),var(--gold-d));color:#1A1206;box-shadow:0 6px 20px rgba(224,164,75,.24)}
.btn--gold:hover{background:linear-gradient(150deg,#EDB45F,#C08A33)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.26);color:#fff}
.btn--ghost:hover{border-color:rgba(255,255,255,.5)}
.btn--line{background:#fff;border-color:var(--line);color:var(--text)}
.btn--line:hover{border-color:#CFC7B8}
.btn--sm{padding:9px 16px;font-size:13.5px}
.btn--block{width:100%}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 78% -12%,rgba(224,164,75,.20),transparent 62%),
    radial-gradient(760px 420px at 8% 108%,rgba(84,120,190,.16),transparent 60%),
    linear-gradient(180deg,#0B0E13,#10151D 58%,#0B0E13);
  color:#F2F4F7;
  padding:64px 0 72px;
}
.hero::after{
  content:"";position:absolute;inset: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:56px 56px;
  mask-image:radial-gradient(760px 480px at 50% 0%,#000,transparent 82%);
  -webkit-mask-image:radial-gradient(760px 480px at 50% 0%,#000,transparent 82%);
}
.hero__in{position:relative;z-index:1;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;font-size:13px;
  border:1px solid rgba(224,164,75,.34);color:#F0C583;background:rgba(224,164,75,.08);
  margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--gold);display:block}
.hero h1{
  font-size:clamp(30px,6.4vw,52px);
  font-weight:700;letter-spacing:-.02em;line-height:1.18;
}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero__sub{
  margin-top:18px;font-size:clamp(15.5px,2.6vw,18px);
  color:rgba(255,255,255,.74);line-height:1.75;max-width:600px;
}
.hero__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero__note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.44)}

/* 数据条 */
.stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  margin-top:44px;border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.09);
}
.stats > div{background:rgba(11,14,19,.62);padding:16px 18px}
.stats b{display:block;font-size:22px;font-weight:700;color:#fff;letter-spacing:-.01em}
.stats span{font-size:12.5px;color:rgba(255,255,255,.5)}
@media(min-width:640px){.stats{grid-template-columns:repeat(4,1fr)}}

/* ---------- 通用标题 ---------- */
.head{max-width:660px;margin-bottom:34px}
.head__k{font-size:13px;font-weight:600;color:var(--gold-d);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.head h2{font-size:clamp(23px,4vw,33px);font-weight:700}
.head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.75}
.sec--ink .head__k{color:var(--gold)}
.sec--ink .head p{color:var(--muted-l)}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:14px}
.grid--2{grid-template-columns:1fr}
.grid--3{grid-template-columns:1fr}
.grid--4{grid-template-columns:repeat(2,1fr)}
@media(min-width:700px){
  .grid--2{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .grid--4{grid-template-columns:repeat(4,1fr)}
}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--shadow);
}
.card__n{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:var(--gold-d);
  background:rgba(224,164,75,.13);margin-bottom:14px;
}
.card h3{font-size:16.5px;font-weight:650;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--muted);line-height:1.72}

/* 痛点 */
.pain{display:flex;gap:13px;padding:17px 0;border-bottom:1px solid var(--line)}
.pain:last-child{border-bottom:0}
.pain__i{
  flex:0 0 auto;width:9px;height:9px;border-radius:50%;margin-top:9px;
  background:var(--warn);box-shadow:0 0 0 4px rgba(194,65,12,.1);
}
.pain b{display:block;font-size:15.5px;font-weight:650;margin-bottom:3px}
.pain span{font-size:14.5px;color:var(--muted);line-height:1.7}

/* 维度表 */
.dims{display:grid;gap:10px;grid-template-columns:1fr}
@media(min-width:640px){.dims{grid-template-columns:repeat(2,1fr)}}
.dim{
  display:flex;align-items:center;gap:13px;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;
}
.dim__k{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;font-weight:800;
  background:var(--ink);color:var(--gold);
}
.dim b{font-size:15px;font-weight:620;display:block}
.dim span{font-size:13px;color:var(--muted)}

/* 交付物 */
.deliver{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:24px;position:relative;overflow:hidden;
}
.deliver::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--gold),transparent);
}
.deliver h3{font-size:16.5px;margin-bottom:8px}
.deliver p{font-size:14.5px;color:var(--muted)}

/* 三步 */
.steps{display:grid;gap:16px;grid-template-columns:1fr;counter-reset:s}
@media(min-width:760px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{position:relative;padding:24px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.step__t{font-size:12px;font-weight:700;color:var(--gold-d);letter-spacing:.06em;margin-bottom:9px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted)}
.step__meta{margin-top:14px;padding-top:13px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted)}

/* 自测证据 */
.proof{
  display:grid;gap:0;border-radius:var(--r);overflow:hidden;
  border:1px solid var(--line-d);background:var(--ink-2);
}
@media(min-width:760px){.proof{grid-template-columns:280px 1fr}}
.proof__score{
  padding:30px 26px;text-align:center;
  background:linear-gradient(160deg,rgba(224,164,75,.14),transparent 70%);
  border-bottom:1px solid var(--line-d);
}
@media(min-width:760px){.proof__score{border-bottom:0;border-right:1px solid var(--line-d)}}
.proof__num{font-size:62px;font-weight:800;letter-spacing:-.03em;line-height:1;color:var(--gold)}
.proof__num small{font-size:19px;font-weight:600;color:rgba(255,255,255,.4)}
.proof__lab{margin-top:8px;font-size:13px;color:rgba(255,255,255,.55)}
.proof__body{padding:26px}
.proof__body h3{font-size:17px;color:#fff;margin-bottom:12px}
.proof__li{display:flex;gap:10px;padding:9px 0;font-size:14.5px;color:rgba(255,255,255,.72);border-bottom:1px solid rgba(255,255,255,.06)}
.proof__li:last-child{border-bottom:0}
.proof__li i{flex:0 0 auto;width:16px;color:var(--warn);font-style:normal;font-weight:700}

/* 行业矩阵 */
.ind{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 15px;border-radius:11px;background:#fff;border:1px solid var(--line);
  font-size:14.5px;
}
.ind__tag{font-size:11.5px;padding:3px 9px;border-radius:999px;font-weight:600;flex:0 0 auto}
.ind__tag--ok{background:rgba(46,139,87,.11);color:#1F6B42}
.ind__tag--wip{background:rgba(107,114,128,.12);color:#5A6270}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 34px 19px 0;position:relative;
  font-size:15.5px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:17px;font-size:20px;font-weight:400;color:var(--gold-d);
  transition:transform .2s;
}
.faq details[open] summary::after{content:"–"}
.faq p{padding:0 0 20px;font-size:14.5px;color:var(--muted);line-height:1.78}

/* 表单 */
.form{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:28px 22px;box-shadow:var(--shadow);
}
.form h3{font-size:21px;margin-bottom:6px}
.form__sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:#3A3F49}
.field label i{color:var(--warn);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;
  font-size:15.5px;font-family:inherit;background:#FDFCFA;color:var(--text);
  transition:border-color .16s,background .16s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);background:#fff;
  box-shadow:0 0 0 3px rgba(224,164,75,.13);
}
.field textarea{min-height:82px;resize:vertical}
.field--row{display:grid;gap:15px;grid-template-columns:1fr}
@media(min-width:560px){.field--row{grid-template-columns:1fr 1fr}}
.form__tip{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.7}
.agree{
  display:flex;gap:9px;align-items:flex-start;margin:2px 0 14px;
  font-size:13px;color:#4B5563;line-height:1.65;cursor:pointer;
}
.agree input{
  width:17px;height:17px;flex:0 0 auto;margin:1px 0 0;cursor:pointer;
  accent-color:var(--warn);
}
.agree a{color:var(--warn);text-decoration:underline;text-underline-offset:2px}
.agree--bad{outline:2px solid rgba(194,65,12,.35);outline-offset:5px;border-radius:6px}
.form__ok{
  display:none;text-align:center;padding:34px 16px;
}
.form__ok.show{display:block}
.form__ok .tick{
  width:52px;height:52px;border-radius:50%;margin:0 auto 16px;
  background:rgba(46,139,87,.12);color:var(--ok);
  display:grid;place-items:center;font-size:26px;
}
.err{color:var(--warn);font-size:13px;margin-top:7px;display:none}
.err.show{display:block}

/* CTA 带 */
.band{
  border-radius:20px;padding:34px 26px;text-align:center;
  background:linear-gradient(150deg,#12171F,#1D2430);
  border:1px solid var(--line-d);color:#fff;
}
.band h3{font-size:clamp(20px,3.4vw,26px);margin-bottom:10px}
.band p{color:rgba(255,255,255,.62);font-size:14.5px;max-width:520px;margin:0 auto 22px}

/* 页脚 */
.foot{background:var(--ink);color:rgba(255,255,255,.5);padding:44px 0 100px;font-size:13px;line-height:1.9}
.foot__top{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.08)}
.foot__b{color:#fff;font-size:15px;font-weight:600;margin-bottom:6px}
.foot a{color:rgba(255,255,255,.62)}
.foot a:hover{color:var(--gold)}
@media(min-width:820px){.foot{padding-bottom:44px}}

/* 移动端固定 CTA */
.mbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;gap:10px;padding:11px 14px calc(11px + env(safe-area-inset-bottom));
  background:rgba(11,14,19,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid rgba(255,255,255,.09);
}
.mbar .btn{flex:1}
@media(min-width:820px){.mbar{display:none}}

/* 动效 */
.rise{opacity:0;transform:translateY(14px);transition:opacity .5s cubic-bezier(.2,.7,.3,1),transform .5s cubic-bezier(.2,.7,.3,1)}
.rise.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rise{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* 内页 hero */
.phero{background:linear-gradient(180deg,#0B0E13,#141A23);color:#fff;padding:52px 0 46px}
.phero h1{font-size:clamp(26px,5vw,40px);font-weight:700;letter-spacing:-.02em}
.phero p{margin-top:14px;color:rgba(255,255,255,.68);font-size:15.5px;max-width:600px;line-height:1.75}
.crumb{font-size:13px;color:rgba(255,255,255,.4);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.6)}

/* 表格 */
.tb{width:100%;border-collapse:collapse;font-size:14.5px}
.tb th,.tb td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.tb th{font-size:12.5px;font-weight:700;color:var(--muted);letter-spacing:.04em;background:var(--paper-2)}
.tb tr:last-child td{border-bottom:0}
.tb__wrap{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch}