/* 慧经营官网 · 公共样式（全部页面共用） */
:root{
  --bg:#040b18; --bg-2:#071427;
  --navy-950:#07142a; --navy-900:#0b1d3a; --navy-800:#12305a; --navy-700:#1a3d6e;
  --teal-500:#1fbcc8; --teal-400:#3fd3dc; --teal-300:#7fe6ea;
  --amber:#ffc457; --green:#5be0b3;
  --on-dark:#e9f1fb; --on-dark-2:#9fb2cc; --hair:rgba(159,178,204,.14); --line-dark:rgba(159,178,204,.18);
  --wrap:1180px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --mono:"SF Mono","JetBrains Mono",Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font);background:var(--bg);color:var(--on-dark);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 基础组件 */
.label{font-family:var(--mono);font-size:12px;letter-spacing:.24em;color:var(--teal-300);text-transform:uppercase}
.grad{background:linear-gradient(100deg,#fff 10%,var(--teal-300) 55%,var(--teal-500));-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;transition:all .25s;border:1px solid transparent;white-space:nowrap;cursor:pointer;background:none}
.btn svg{width:17px;height:17px}
.btn-p{background:#fff;color:var(--bg)}
.btn-p:hover{background:var(--teal-300);box-shadow:0 0 40px rgba(63,211,220,.5)}
.btn-g{border-color:rgba(255,255,255,.22);color:#fff;backdrop-filter:blur(8px);background:rgba(255,255,255,.03)}
.btn-g:hover{border-color:var(--teal-300);color:var(--teal-300)}
.go{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:#fff;padding-bottom:6px;border-bottom:1px solid rgba(255,255,255,.3);transition:all .25s}
.go:hover{color:var(--teal-300);border-color:var(--teal-300);gap:16px}
.go svg{width:16px;height:16px}
.js .rv{opacity:0;transform:translateY(30px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
.d1{transition-delay:.1s!important}.d2{transition-delay:.2s!important}.d3{transition-delay:.3s!important}.d4{transition-delay:.4s!important}
.gridbg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(159,178,204,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(159,178,204,.06) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse 70% 70% at 60% 40%,#000,transparent 75%);mask-image:radial-gradient(ellipse 70% 70% at 60% 40%,#000,transparent 75%)}
.glass{background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));border:1px solid var(--line-dark);border-radius:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.edge{position:relative}
.edge::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(63,211,220,.7),transparent 30%,transparent 70%,rgba(63,211,220,.3));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
@keyframes pl{50%{opacity:.25}}
@keyframes spin{to{transform:rotate(360deg)}}

/* 导航（仅 Logo） */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:68px;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(4,11,24,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--hair)}
.nav .wrap{height:100%;display:flex;align-items:center}
.nav .brand img{height:30px;width:auto}

/* 内页首屏 */
.p-hero{position:relative;min-height:88vh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden}
.p-hero::after{content:"";position:absolute;right:-240px;top:50%;width:900px;height:900px;transform:translateY(-50%);background:radial-gradient(circle,rgba(31,188,200,.2),transparent 62%);pointer-events:none}
.p-hero .wrap{position:relative;z-index:1;width:100%;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.p-hero.solo .wrap{grid-template-columns:1fr}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--on-dark-2);margin-bottom:28px}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;margin:0 8px;opacity:.5}
.p-hero h1{font-size:clamp(42px,6.2vw,92px);line-height:1.04;font-weight:800;letter-spacing:-.02em;color:#fff;margin:16px 0 24px}
.p-hero .lead{font-size:clamp(16px,1.5vw,19px);color:var(--on-dark-2);max-width:32em}
.p-hero .lead b{color:#fff;font-weight:600}
.p-hero .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:38px}

/* 区块 */
.sec{position:relative;padding:140px 0;overflow:hidden}
.sec+.sec{border-top:1px solid var(--hair)}
.sec-h{font-size:clamp(32px,4.4vw,60px);line-height:1.1;font-weight:800;letter-spacing:-.02em;color:#fff;margin:16px 0 18px}
.sec-p{font-size:clamp(16px,1.4vw,18px);color:var(--on-dark-2);max-width:36em}
.sec-top{margin-bottom:64px}
.sec-top.c{text-align:center}
.sec-top.c .sec-p{margin:0 auto}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center}

/* 核算环 */
.vis{position:relative;aspect-ratio:1;max-width:560px;width:100%;justify-self:center}
.ring svg{width:100%;height:100%;overflow:visible}
.ring .orbit{fill:none;stroke:rgba(159,178,204,.14)}
.ring .orbit.dash{stroke-dasharray:2 8;animation:spin 60s linear infinite;transform-origin:280px 280px}
.ring .wire{fill:none;stroke:rgba(63,211,220,.22);stroke-width:1}
.ring .pulse{fill:none;stroke:var(--teal-300);stroke-width:2;stroke-linecap:round;stroke-dasharray:14 400;animation:flow 2.8s linear infinite;filter:drop-shadow(0 0 4px var(--teal-400))}
.ring .pulse.a{stroke:var(--amber);filter:drop-shadow(0 0 5px var(--amber))}
@keyframes flow{from{stroke-dashoffset:414}to{stroke-dashoffset:0}}
.ring .node circle{fill:#071427;stroke:rgba(63,211,220,.5);stroke-width:1}
.ring .node text{fill:#e9f1fb;font-size:14px;text-anchor:middle;font-family:var(--font)}
.ring .node.watch circle{stroke:var(--amber);stroke-width:1.5}
.ring .node.watch .halo{fill:none;stroke:var(--amber);opacity:.6;animation:halo 2s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes halo{from{transform:scale(1);opacity:.7}to{transform:scale(1.7);opacity:0}}
.ring .tagA{fill:var(--amber);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-anchor:middle}
.ring .center circle.c1{fill:url(#cg)}
.ring .center circle.c2{fill:none;stroke:rgba(127,230,234,.6);stroke-width:1}
.ring .center .v{fill:#fff;font-family:var(--mono);font-size:44px;font-weight:600;text-anchor:middle}
.ring .center .k{fill:#9fb2cc;font-size:13px;text-anchor:middle;letter-spacing:.06em}

/* AI数字员工 核心 */
.orb{display:grid;place-items:center}
.orb .r{position:absolute;inset:0;margin:auto;border-radius:50%;border:1px solid rgba(159,178,204,.14)}
.orb .r1{width:44%;height:44%;border-color:rgba(63,211,220,.35)}
.orb .r2{width:70%;height:70%;animation:spin 36s linear infinite}
.orb .r3{width:96%;height:96%;border-style:dashed;animation:spin 70s linear infinite reverse}
.orb .sat{position:absolute;left:50%;top:0;transform:translate(-50%,-50%)}
.orb .r2 .sat:nth-child(2){top:100%}
.orb .r3 .sat:nth-child(2){top:50%;left:0}
.orb .r3 .sat:nth-child(3){top:50%;left:100%}
.orb .r3 .sat:nth-child(4){top:100%}
.chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;background:rgba(7,20,39,.92);border:1px solid rgba(63,211,220,.4);font-size:13px;color:#fff;white-space:nowrap;box-shadow:0 0 24px -6px rgba(31,188,200,.5)}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}
.chip.h{border-color:rgba(255,196,87,.6);box-shadow:0 0 24px -6px rgba(255,196,87,.6)}
.chip.h i{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.orb .r2 .chip{animation:spin 36s linear infinite reverse}
.orb .r3 .chip{animation:spin 70s linear infinite}
.core{position:relative;width:34%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;text-align:center;background:radial-gradient(circle at 35% 30%,rgba(127,230,234,.55),rgba(31,188,200,.18) 45%,rgba(7,20,39,.9) 75%);box-shadow:0 0 80px rgba(31,188,200,.45),inset 0 0 40px rgba(127,230,234,.25)}
.core::before{content:"";position:absolute;inset:-14%;border-radius:50%;border:1px solid rgba(63,211,220,.25);animation:halo2 3s ease-out infinite}
@keyframes halo2{from{transform:scale(.85);opacity:.9}to{transform:scale(1.25);opacity:0}}
.core b{display:block;font-size:clamp(15px,1.6vw,19px);color:#fff}
.core span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--teal-300);margin-top:4px}

/* 窗口（应用 / 终端） */
.win{overflow:hidden;border-radius:20px;background:linear-gradient(180deg,rgba(18,48,90,.55),rgba(7,20,39,.9));border:1px solid var(--line-dark);box-shadow:0 50px 100px -30px rgba(0,0,0,.8)}
.win-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--hair);font-size:12.5px;color:var(--on-dark-2)}
.win-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.14)}
.win-bar .t{margin-left:8px;color:var(--on-dark)}
.win-bar .live{margin-left:auto;display:inline-flex;align-items:center;gap:6px;color:var(--teal-300);font-family:var(--mono);font-size:11px;letter-spacing:.1em}
.win-bar .live i{background:var(--teal-400);box-shadow:0 0 8px var(--teal-400);animation:pl 1.6s infinite;width:7px;height:7px}
.demo{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--on-dark-2);border:1px solid var(--line-dark);padding:1px 7px;border-radius:5px}

/* 通信控制台 */
.comm{position:relative;border-radius:22px;padding:8px;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.015));border:1px solid rgba(159,178,204,.18);box-shadow:0 40px 90px -30px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.07)}
.comm-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 14px 12px;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--on-dark-2)}
.comm-bar span:last-child{display:inline-flex;align-items:center;gap:7px;color:var(--green)}
.comm-bar span:last-child i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pl 1.6s infinite}
.ch{position:relative;display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;padding:18px;border-radius:15px;background:rgba(4,11,24,.65);border:1px solid var(--hair);color:#fff;transition:border-color .25s,background .25s,transform .25s;cursor:pointer;text-align:left;width:100%;overflow:hidden}
.ch+.ch{margin-top:8px}
.ch:hover{border-color:rgba(63,211,220,.55);background:rgba(31,188,200,.07);transform:translateX(3px)}
.ch .ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(63,211,220,.25),rgba(31,188,200,.05));border:1px solid rgba(63,211,220,.35);color:var(--teal-300)}
.ch .ic svg{width:22px;height:22px}
.ch .k{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--on-dark-2)}
.ch .v{display:block;margin-top:3px;font-size:clamp(17px,1.6vw,21px);font-weight:600;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch .act{font-size:12.5px;font-weight:600;color:var(--teal-300);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.ch .act svg{width:14px;height:14px;transition:transform .25s}
.ch:hover .act svg{transform:translateX(3px)}
.ch.primary{background:linear-gradient(135deg,rgba(31,188,200,.22),rgba(4,11,24,.7) 70%);border-color:rgba(63,211,220,.45)}
.ch.primary .v{font-size:clamp(22px,2.1vw,28px);font-variant-numeric:tabular-nums}
.ch.primary::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(90deg,transparent,rgba(127,230,234,.12),transparent);transform:skewX(-20deg);animation:sweep 4.5s ease-in-out infinite}
@keyframes sweep{0%,60%{left:-60%}100%{left:130%}}
.ch.done .act{color:var(--green)}

/* 流程步骤 */
.steps{position:relative;display:grid;grid-template-columns:repeat(var(--n,3),1fr);gap:20px}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:1px;background:linear-gradient(90deg,transparent,rgba(63,211,220,.55),transparent)}
.step .dot{position:relative;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-size:15px;font-weight:600;color:var(--teal-300);background:var(--bg);border:1.5px solid rgba(63,211,220,.6);box-shadow:0 0 0 8px var(--bg),0 0 28px rgba(31,188,200,.45);margin-bottom:26px}
.step.key .dot{background:var(--teal-400);color:var(--bg);border-color:var(--teal-300)}
.step h3{font-size:19px;color:#fff;margin-bottom:6px}
.step p{font-size:14px;color:var(--on-dark-2);max-width:20em}

/* 问答 */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--hair)}
.qa{border-bottom:1px solid var(--hair)}
.qa summary{list-style:none;cursor:pointer;padding:26px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:clamp(16px,1.5vw,19px);font-weight:600;color:#fff;transition:color .2s}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--teal-300)}
.qa summary::after{content:"";flex:none;width:12px;height:12px;border-right:1.5px solid var(--teal-300);border-bottom:1.5px solid var(--teal-300);transform:rotate(45deg) translateY(-4px);transition:transform .25s}
.qa[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.qa p{padding:0 40px 26px 0;font-size:15.5px;color:var(--on-dark-2);line-height:1.85}

/* 合作需求表单 */
.form-sec{position:relative;padding:140px 0;border-top:1px solid var(--hair);overflow:hidden}
.form-sec::after{content:"";position:absolute;left:-200px;bottom:-300px;width:900px;height:700px;background:radial-gradient(ellipse,rgba(31,188,200,.18),transparent 62%);pointer-events:none}
.form-sec .wrap{position:relative;z-index:1;display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:start}
.form-side .sec-h{font-size:clamp(30px,3.4vw,48px)}
.form-side .alt{margin-top:40px;display:grid;gap:14px;font-size:14px;color:var(--on-dark-2)}
.form-side .alt a{color:#fff}
.form-side .alt a:hover{color:var(--teal-300)}
.form-side .alt b{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--on-dark-2);font-weight:500;margin-bottom:2px}
.fbox{padding:36px;border-radius:24px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.f{display:flex;flex-direction:column;gap:8px;min-width:0}
.f.full{grid-column:1 / -1}
.f>label,.f>.fl{font-size:13px;color:var(--on-dark-2);letter-spacing:.02em}
.f>label em,.f>.fl em{font-style:normal;color:var(--teal-300);margin-left:3px}
.f input,.f select,.f textarea{width:100%;height:50px;padding:0 16px;border-radius:12px;background:rgba(4,11,24,.7);border:1px solid var(--line-dark);color:#fff;font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s}
.f textarea{height:auto;min-height:120px;padding:14px 16px;resize:vertical;line-height:1.7}
.f select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--teal-300) 50%),linear-gradient(135deg,var(--teal-300) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;background-size:5px 5px;background-repeat:no-repeat}
.f select option{background:#0b1d3a;color:#fff}
.f input::placeholder,.f textarea::placeholder{color:rgba(159,178,204,.45)}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--teal-400);box-shadow:0 0 0 4px rgba(31,188,200,.15)}
.f.err input,.f.err select,.f.err textarea{border-color:#ff7a7a}
.f .msg{font-size:12px;color:#ff9b9b;min-height:0}
.picks{display:flex;flex-wrap:wrap;gap:10px}
.pick{position:relative}
.pick input{position:absolute;opacity:0;pointer-events:none}
.pick span{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:999px;border:1px solid var(--line-dark);background:rgba(4,11,24,.6);font-size:14px;color:var(--on-dark);cursor:pointer;transition:all .2s}
.pick span::before{content:"";width:8px;height:8px;border-radius:50%;border:1px solid var(--on-dark-2);transition:all .2s}
.pick input:checked+span{border-color:var(--teal-400);background:rgba(31,188,200,.14);color:#fff;box-shadow:0 0 24px -8px rgba(31,188,200,.7)}
.pick input:checked+span::before{background:var(--teal-300);border-color:var(--teal-300);box-shadow:0 0 8px var(--teal-300)}
.pick input:focus-visible+span{outline:2px solid var(--teal-400);outline-offset:2px}
.f>.fl small{margin-left:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--on-dark-2)}
.offers{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.offer{position:relative;display:block;cursor:pointer}
.offer input{position:absolute;opacity:0;pointer-events:none}
.offer .ob{position:relative;display:flex;flex-direction:column;gap:3px;height:100%;padding:16px 46px 16px 18px;border-radius:14px;border:1px solid var(--line-dark);background:rgba(4,11,24,.6);transition:all .2s}
.offer .ot{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--on-dark-2)}
.offer b{font-size:16px;color:#fff;font-weight:600}
.offer small{font-size:12.5px;color:var(--on-dark-2);line-height:1.55}
.offer .tick{position:absolute;right:14px;top:16px;width:22px;height:22px;border-radius:7px;border:1px solid var(--line-dark);display:grid;place-items:center;color:transparent;transition:all .2s}
.offer .tick svg{width:14px;height:14px}
.offer:hover .ob{border-color:rgba(159,178,204,.4)}
.offer input:checked+.ob{border-color:var(--teal-400);background:linear-gradient(135deg,rgba(31,188,200,.16),rgba(4,11,24,.6));box-shadow:0 0 30px -10px rgba(31,188,200,.7)}
.offer input:checked+.ob .ot{color:var(--teal-300)}
.offer input:checked+.ob .tick{background:var(--teal-400);border-color:var(--teal-300);color:var(--bg)}
.offer input:focus-visible+.ob{outline:2px solid var(--teal-400);outline-offset:2px}
.f.err .offer .ob{border-color:rgba(255,122,122,.6)}
.off4{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);border-radius:22px;overflow:hidden}
.off4 a{display:flex;flex-direction:column;gap:8px;background:var(--bg);padding:34px 28px;transition:background .3s}
.off4 a:hover{background:#06122a}
.off4 .ot{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--teal-300)}
.off4 b{font-size:20px;color:#fff}
.off4 small{font-size:14px;color:var(--on-dark-2);line-height:1.7}
.agree{display:flex;flex-direction:row!important;gap:10px;align-items:flex-start;font-size:13px;color:var(--on-dark-2);cursor:pointer}
.agree input{margin-top:4px;accent-color:var(--teal-400);width:15px;height:15px;flex:none}
.agree a{color:var(--teal-300)}
.fsub{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;padding-top:24px;border-top:1px solid var(--hair)}
.fsub small{font-size:12.5px;color:var(--on-dark-2)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fdone{display:none;text-align:center;padding:40px 10px}
.fdone .ok{width:72px;height:72px;margin:0 auto 22px;border-radius:50%;display:grid;place-items:center;background:rgba(91,224,179,.12);border:1px solid rgba(91,224,179,.5);color:var(--green);box-shadow:0 0 40px -6px rgba(91,224,179,.6)}
.fdone .ok svg{width:30px;height:30px}
.fdone h3{font-size:26px;color:#fff;margin-bottom:10px}
.fdone p{color:var(--on-dark-2);max-width:26em;margin:0 auto}
.fbox.sent form{display:none}
.fbox.sent .fdone{display:block}

/* 文档（法务） */
.doc-wrap{display:grid;grid-template-columns:230px 1fr;gap:48px;padding:0 0 120px;align-items:start}
.toc{position:sticky;top:96px;font-size:13.5px}
.toc b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--on-dark-2);margin-bottom:14px;font-weight:500}
.toc ol{list-style:none;display:grid;gap:9px;border-left:1px solid var(--hair);padding-left:16px}
.toc a{color:var(--on-dark-2);transition:color .2s}
.toc a:hover{color:var(--teal-300)}
.doc{padding:52px 56px;font-size:15px;line-height:1.95;min-width:0}
.doc .meta{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:13px;color:var(--on-dark-2);padding-bottom:22px;margin-bottom:8px;border-bottom:1px solid var(--hair)}
.doc .meta b{color:#fff;font-weight:600}
.doc .lead{background:rgba(31,188,200,.07);border-left:2px solid var(--teal-400);padding:16px 20px;border-radius:0 12px 12px 0;margin:24px 0 8px;color:var(--on-dark-2)}
.doc h2{font-size:20px;color:#fff;margin:40px 0 12px;scroll-margin-top:96px}
.doc h3{font-size:16px;color:#fff;margin:22px 0 6px}
.doc p{margin:8px 0;color:var(--on-dark-2)}
.doc ul,.doc ol{margin:8px 0 8px 22px;color:var(--on-dark-2)}
.doc li{margin:4px 0}
.doc strong{color:#fff}
.doc table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}
.doc th,.doc td{border:1px solid var(--hair);padding:12px 14px;text-align:left;vertical-align:top}
.doc th{background:rgba(255,255,255,.04);font-weight:600;color:#fff}
.doc td{color:var(--on-dark-2)}
.doc .tbl{overflow-x:auto}
.doc a{color:var(--teal-300)}

/* 页脚 */
.foot{position:relative;border-top:1px solid var(--hair);padding:72px 0 30px;color:var(--on-dark-2);font-size:14px;background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:32px}
.foot-brand img{height:30px;width:auto}
.foot-brand p{margin-top:18px;font-size:13.5px;color:var(--on-dark-2);max-width:20em}
.foot .fh{font-size:14px;color:#fff;font-weight:600;margin-bottom:18px}
.foot ul{list-style:none;display:grid;gap:12px}
.foot a{transition:color .2s}
.foot a:hover{color:#fff}
.social{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.soc{position:relative;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);color:var(--on-dark);cursor:pointer;transition:all .2s}
.soc:hover,.soc:focus-visible,.soc.open{background:rgba(31,188,200,.16);border-color:rgba(63,211,220,.5);color:var(--teal-300);outline:none}
.soc svg{width:20px;height:20px}
.soc .txt{font-size:11px;font-weight:700;letter-spacing:-.02em}
.pop{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%,6px);min-width:150px;padding:12px;border-radius:12px;background:#fff;color:#0f1f38;box-shadow:0 18px 40px -12px rgba(0,0,0,.5);text-align:center;opacity:0;visibility:hidden;transition:all .18s;z-index:5;pointer-events:none}
.pop::after{content:"";position:absolute;top:100%;left:50%;margin-left:-6px;border:6px solid transparent;border-top-color:#fff}
.soc:hover .pop,.soc:focus-visible .pop,.soc.open .pop{opacity:1;visibility:visible;transform:translate(-50%,0)}
.pop b{display:block;font-size:13px}
.pop span{display:block;font-size:12px;color:#44546b;margin-top:2px;white-space:nowrap}
.pop img{width:128px;height:128px;margin:0 auto 8px;border-radius:6px}
.foot-bottom{margin-top:56px;padding-top:22px;border-top:1px solid var(--hair);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;font-size:13px}

/* 响应式 */
@media (max-width:980px){
  .p-hero{min-height:auto;padding:110px 0 70px}
  .p-hero .wrap,.split,.form-sec .wrap{grid-template-columns:1fr}
  .vis{max-width:460px}
  .sec{padding:110px 0}
  .steps{grid-template-columns:1fr;gap:34px}
  .steps::before{left:27px;right:auto;top:0;bottom:0;width:1px;height:auto;background:linear-gradient(transparent,rgba(63,211,220,.55),transparent)}
  .step{display:grid;grid-template-columns:56px 1fr;gap:20px}
  .step .dot{margin:0}
  .doc-wrap{grid-template-columns:1fr;gap:20px}
  .off4{grid-template-columns:1fr 1fr}
  .toc{position:static;padding:20px 22px;border:1px solid var(--hair);border-radius:16px}
  .foot-grid{grid-template-columns:1fr 1fr 1fr}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:760px){
  .wrap{padding:0 18px}
  .btn{height:48px;padding:0 20px;font-size:14px}
  .sec,.form-sec{padding:84px 0}
  .sec-top{margin-bottom:44px}
  .chip{font-size:12px;padding:6px 11px}
  .orb .r3{width:80%;height:80%}
  .orb .r2{width:58%;height:58%}
  .orb .r1{width:38%;height:38%}
  .core{width:30%}
  .core b{font-size:13px}
  .ch{grid-template-columns:42px 1fr;padding:15px 14px;gap:12px}
  .ch .ic{width:42px;height:42px}
  .ch .act{grid-column:2;margin-top:-4px}
  .fbox{padding:24px 18px}
  .fgrid{grid-template-columns:1fr}
  .offers{grid-template-columns:1fr}
  .doc{padding:30px 20px}
  .qa p{padding-right:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px 16px}
  .off4{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}.js .rv{opacity:1;transform:none}}