:root{
  --bg:#061326;--bg2:#0b1f42;--card:rgba(18,42,76,.72);--card2:rgba(30,48,86,.72);--line:rgba(170,205,255,.17);
  --text:#f5f9ff;--muted:#aebbd0;--soft:#dce8ff;--cyan:#2fd6ff;--blue:#3578ff;--violet:#8548ff;--green:#28c770;--orange:#ff8a2a;
  --shadow:0 24px 70px rgba(0,0,0,.38);--radius:24px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#071329;min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.page-bg{position:fixed;inset:0;z-index:-2;background:radial-gradient(circle at 78% 18%,rgba(133,72,255,.33),transparent 34%),radial-gradient(circle at 9% 28%,rgba(47,214,255,.18),transparent 30%),linear-gradient(135deg,#05111f 0%,#08213e 50%,#101047 100%)}.page-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 0 63%,rgba(91,63,255,.18) 63% 100%);mask-image:radial-gradient(circle at 100% 50%,#000,transparent 48%)}.wrap{width:min(1190px,calc(100% - 42px));margin:0 auto}.topbar{position:sticky;top:0;z-index:20;background:rgba(4,14,30,.72);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.07)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;gap:12px;align-items:center}.logo-mark{width:46px;height:46px;border-radius:15px;background:linear-gradient(135deg,rgba(47,214,255,.18),rgba(133,72,255,.28));display:grid;place-items:center;border:1px solid rgba(132,181,255,.25);box-shadow:0 0 36px rgba(64,129,255,.18)}.logo-title{font-weight:900;font-size:21px;letter-spacing:.3px}.logo-sub{font-size:13px;color:var(--muted);margin-top:3px}.nav-links{display:flex;gap:38px;color:#dce6f8;font-weight:700;font-size:15px}.nav-links a:hover{color:white}.top-badge,.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(165,201,255,.22);background:linear-gradient(180deg,rgba(99,136,218,.22),rgba(51,72,126,.16));border-radius:999px;padding:11px 17px;color:#eef5ff;box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}.hero{padding:44px 0 26px}.hero-grid{display:grid;grid-template-columns:1.09fr .91fr;gap:56px;align-items:center}.hero h1{font-size:clamp(42px,5.3vw,68px);line-height:1.05;margin:26px 0 18px;letter-spacing:-2px;text-shadow:0 12px 35px rgba(0,0,0,.28)}.hero-desc{font-size:18px;line-height:1.78;color:#d6e3f7;max-width:670px;margin:0 0 28px}.actions{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:18px}.btn{border:0;cursor:pointer;border-radius:16px;padding:15px 28px;font-weight:900;display:inline-flex;align-items:center;justify-content:center;gap:10px;transition:.22s transform,.22s filter,.22s border-color;min-height:56px}.btn:hover{transform:translateY(-2px);filter:brightness(1.08)}.btn-primary{color:white;background:linear-gradient(135deg,#3b8cff,#8a3fff);box-shadow:0 16px 42px rgba(68,111,255,.34),inset 0 1px 0 rgba(255,255,255,.24)}.btn-ghost{color:#eaf3ff;background:rgba(8,25,50,.62);border:1px solid rgba(159,199,255,.28)}.install-guide{margin-top:8px;border:1px solid rgba(161,203,255,.14);background:rgba(5,21,42,.58);backdrop-filter:blur(18px);border-radius:20px;padding:14px 16px;box-shadow:var(--shadow)}.guide-title{font-weight:900;color:#9fefff;margin:0 0 10px;font-size:15px}.guide-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.guide-card{display:flex;gap:13px;align-items:center;border:1px solid rgba(255,255,255,.08);border-radius:15px;padding:13px 14px;background:rgba(255,255,255,.035);position:relative}.guide-card:not(:last-child):after{content:"→";position:absolute;right:-13px;color:#7994c8;font-weight:900}.guide-icon{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;font-size:24px;background:rgba(255,255,255,.08)}.guide-card b{display:block;font-size:14px;margin-bottom:3px}.guide-card span{display:block;white-space:pre-line;color:#bcc9dc;font-size:12.5px;line-height:1.35}.brand-card{position:relative;min-height:315px;border-radius:28px;padding:34px 34px 26px;background:linear-gradient(135deg,rgba(72,104,153,.52),rgba(90,62,164,.48));border:1px solid rgba(210,226,255,.28);box-shadow:0 30px 88px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.22);overflow:hidden;transform:perspective(800px) rotateY(-3deg)}.brand-card:before{content:"";position:absolute;right:28px;top:28px;width:160px;height:112px;background:radial-gradient(circle,rgba(255,255,255,.32) 1px,transparent 1.7px);background-size:12px 12px;opacity:.25}.brand-card:after{content:"";position:absolute;right:-80px;bottom:-100px;width:260px;height:260px;border-radius:50%;background:rgba(103,73,255,.36);filter:blur(20px)}.avatar{width:82px;height:82px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#24d1ff,#7e3fff);font-size:34px;font-weight:1000;box-shadow:0 16px 44px rgba(47,214,255,.24);border:1px solid rgba(255,255,255,.32)}.install-corner{position:absolute;right:32px;top:45px;width:66px;height:66px;border-radius:18px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);font-size:31px}.mini-badge{position:absolute;left:178px;top:62px;padding:9px 18px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#d9e6ff;font-size:14px}.brand-card h2{font-size:39px;margin:20px 0 7px}.brand-card p{color:#dbe6f8;margin:0}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:31px 0 25px}.stat{padding:0 16px;border-right:1px solid rgba(255,255,255,.16);text-align:center}.stat:last-child{border-right:0}.stat-ico{font-size:25px;display:block;margin-bottom:8px}.stat b{display:block;font-size:18px}.stat span{font-size:13px;color:#b9c7da}.card-note{position:relative;z-index:2;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);padding:12px 16px;border-radius:14px;color:#d7e4f9}.section{padding:14px 0}.section-title{display:flex;align-items:center;justify-content:center;gap:18px;margin:10px 0 17px}.section-title:before,.section-title:after{content:"";width:50px;height:2px;background:linear-gradient(90deg,transparent,#438dff,transparent)}.section-title h3{font-size:28px;letter-spacing:2px;margin:0}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card,.contact-card{background:linear-gradient(180deg,rgba(29,55,95,.74),rgba(20,40,72,.7));border:1px solid rgba(174,207,255,.17);border-radius:20px;box-shadow:0 18px 45px rgba(0,0,0,.23);transition:.22s transform,.22s border-color,.22s background;overflow:hidden}.service-card:hover,.contact-card:hover{transform:translateY(-4px);border-color:rgba(83,190,255,.42);background:linear-gradient(180deg,rgba(38,71,120,.78),rgba(23,47,82,.72))}.service-card{padding:22px}.svc-head{display:flex;gap:16px;align-items:flex-start}.svc-icon,.contact-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:27px;box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 16px 32px rgba(0,0,0,.18)}.svc-icon{background:linear-gradient(135deg,#2e8bff,#2159d8)}.svc-icon.purple{background:linear-gradient(135deg,#a64dff,#6447d8)}.svc-icon.teal{background:linear-gradient(135deg,#21d3d1,#17678d)}.service-card h4{margin:4px 0 8px;font-size:22px}.service-card p{margin:0;color:#bdc9da;line-height:1.65;font-size:14.5px}.tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.tag{font-size:12px;color:#dff5ff;background:rgba(70,180,220,.14);border:1px solid rgba(107,216,255,.14);border-radius:999px;padding:7px 11px;font-weight:800}.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.contact-card{padding:18px}.contact-top{display:flex;gap:13px;align-items:center}.contact-card h4{font-size:20px;margin:0}.hint{color:#b9c7da;font-size:13px;margin-top:4px}.value-box{height:36px;margin:15px 0 9px;border-radius:9px;background:rgba(226,239,255,.09);display:flex;align-items:center;justify-content:center;color:#dce9fb;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 10px}.contact-btn{width:100%;height:42px;border:0;border-radius:10px;font-weight:900;color:white;cursor:pointer;background:linear-gradient(135deg,#2aa1ff,#2872f0)}.contact-btn.copy.wechat{background:linear-gradient(135deg,#25c066,#34a857)}.contact-btn.copy.qq{background:linear-gradient(135deg,#2f76ff,#2664cc)}.contact-btn.open.telegram{background:linear-gradient(135deg,#21c4ff,#1597ce)}.contact-btn.open.service{background:linear-gradient(135deg,#ff9b2f,#ff7524)}.contact-icon.wechat{background:linear-gradient(135deg,#25d366,#16984a)}.contact-icon.qq{background:linear-gradient(135deg,#226be7,#143b83)}.contact-icon.telegram{background:linear-gradient(135deg,#2bd6ff,#2395df)}.contact-icon.service{background:linear-gradient(135deg,#ff9b35,#eb5b1e)}.bottom-tip{display:flex;align-items:center;justify-content:center;gap:13px;margin:18px auto 10px;color:#ffc25b;background:rgba(255,150,39,.08);border:1px solid rgba(255,178,70,.22);border-radius:999px;padding:11px 18px;width:max-content;max-width:100%;font-weight:900}.tip-btn{padding:6px 13px;border-radius:999px;background:rgba(13,33,62,.8);border:1px solid rgba(255,255,255,.15);color:#eaf4ff;font-size:13px}.footer{border-top:1px solid rgba(255,255,255,.08);padding:16px 0 22px;text-align:center;color:#9eabc1}.footer .safe{font-size:14px;margin-bottom:12px}.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;z-index:80;background:rgba(12,26,48,.94);color:#fff;border:1px solid rgba(141,186,255,.25);padding:13px 18px;border-radius:999px;box-shadow:var(--shadow);transition:.22s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.modal{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.6);padding:20px}.modal.show{display:flex}.modal-card{width:min(720px,100%);max-height:88vh;overflow:auto;border-radius:24px;background:#091b34;border:1px solid rgba(176,211,255,.2);box-shadow:var(--shadow);padding:26px}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.modal h3{font-size:27px;margin:0}.close{border:0;background:rgba(255,255,255,.08);color:#fff;width:42px;height:42px;border-radius:12px;cursor:pointer}.steps{display:grid;gap:12px;margin-top:20px}.step{padding:16px;border-radius:15px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);line-height:1.7}.step b{color:#8ee6ff}.hidden{display:none!important}@media (display-mode:standalone){.browser-only{display:none!important}}
@media (max-width:980px){.wrap{width:min(100% - 28px,780px)}.nav-links{display:none}.hero{padding-top:26px}.hero-grid{grid-template-columns:1fr;gap:28px}.brand-card{transform:none;min-height:auto}.service-grid,.contact-grid{grid-template-columns:1fr 1fr}.guide-row{grid-template-columns:1fr}.guide-card:after{display:none}.top-badge{display:none}.hero h1{font-size:44px}.hero-desc{font-size:16px}.section-title h3{font-size:24px}}
@media (max-width:620px){.wrap{width:calc(100% - 22px)}.nav{height:66px}.logo-mark{width:40px;height:40px}.logo-title{font-size:18px}.logo-sub{font-size:12px}.hero h1{font-size:36px;letter-spacing:-1px}.actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.brand-card{padding:24px 20px}.mini-badge{position:static;display:inline-flex;margin-top:15px}.install-corner{right:22px;top:28px;width:54px;height:54px}.brand-card h2{font-size:31px}.stats{grid-template-columns:1fr;gap:14px}.stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:12px}.stat:last-child{border-bottom:0}.service-grid,.contact-grid{grid-template-columns:1fr}.bottom-tip{border-radius:18px;align-items:flex-start;flex-direction:column}.section-title:before,.section-title:after{width:30px}}

/* v2：简化保存入口，减少手机端占位，兼容安卓自带浏览器 */
.quick-note{margin-top:10px;color:#b9d7ff;background:rgba(5,21,42,.46);border:1px solid rgba(161,203,255,.14);border-radius:14px;padding:12px 15px;line-height:1.65;font-size:14px}.mobile-quick{display:none}.hero{padding-bottom:14px}.hero-grid{align-items:start}.brand-card{margin-top:10px}.install-guide{display:none!important}
@media (max-width:620px){body{padding-bottom:60px}.hero{padding-top:20px}.hero h1{font-size:34px;line-height:1.12;margin:20px 0 12px}.hero-desc{font-size:15px;line-height:1.65;margin-bottom:18px}.actions{gap:10px;margin-bottom:10px}.btn{min-height:50px;padding:12px 18px;border-radius:14px}.quick-note{font-size:13px;padding:10px 12px}.brand-card{display:none}.section{padding:10px 0}.section-title{margin:14px 0 12px}.service-card,.contact-card{padding:15px;border-radius:17px}.contact-grid{gap:12px}.service-grid{gap:12px}.bottom-tip{font-size:14px;margin:14px 0 8px;padding:13px}.footer{padding-bottom:76px}.mobile-quick{position:fixed;left:10px;right:10px;bottom:10px;z-index:70;display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:9px;border:1px solid rgba(150,195,255,.22);background:rgba(5,16,32,.86);backdrop-filter:blur(14px);border-radius:18px;box-shadow:0 18px 45px rgba(0,0,0,.3)}.mobile-quick a,.mobile-quick button{height:42px;border:0;border-radius:12px;color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2aa1ff,#2872f0)}.mobile-quick button{background:linear-gradient(135deg,#3b8cff,#8a3fff)}}
@media (max-width:390px){.logo-title{font-size:16px}.logo-sub{display:none}.hero h1{font-size:31px}.pill{padding:9px 12px}.section-title h3{font-size:22px}.wrap{width:calc(100% - 18px)}}


/* v3 修复：PC/手机完整显示，避免标题和模块被挤掉 */
.hero{padding:40px 0 20px}
.hero-grid{grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);gap:44px}
.hero h1{font-size:clamp(42px,4.2vw,58px);line-height:1.08;max-width:640px}
.service-grid,.contact-grid{min-height:unset}
.section{padding:18px 0}
.brand-card{min-height:290px}
@media (min-width:981px){
  .section-title{margin:22px 0 18px}
  .service-grid{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
  .contact-grid{display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
  .service-card,.contact-card{min-width:0}
}
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:24px}
}
@media (max-width:620px){
  .hero h1{font-size:32px;line-height:1.14;max-width:100%}
  .hero{padding:18px 0 8px}
  .quick-note{display:none}
  .bottom-tip{display:flex!important}
}


/* v4 修复：小屏强制隐藏右侧大卡片，底部快捷操作扩大到常见手机/窄屏浏览器 */
@media (max-width:900px), (hover:none) and (max-width:1024px){
  body{padding-bottom:76px;overflow-x:hidden}
  .wrap{width:calc(100% - 24px)}
  .topbar{position:sticky;top:0}
  .nav{height:68px}
  .nav-links,.top-badge{display:none!important}
  .hero{padding:20px 0 8px}
  .hero-grid{display:block!important}
  .hero h1{font-size:clamp(31px,8.4vw,42px);line-height:1.12;margin:20px 0 12px;letter-spacing:-1px}
  .hero-desc{font-size:15px;line-height:1.7;margin-bottom:18px;max-width:100%}
  .actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:8px}
  .btn{min-height:48px;padding:11px 12px;border-radius:14px;font-size:14px}
  .quick-note{display:none!important}
  .install-guide{display:none!important}
  .brand-card{display:none!important}
  .section{padding:10px 0}
  .section-title{margin:20px 0 14px}
  .section-title h3{font-size:24px}
  .service-grid,.contact-grid{display:grid!important;grid-template-columns:1fr!important;gap:12px!important}
  .service-card,.contact-card{padding:16px;border-radius:18px}
  .service-card:hover,.contact-card:hover{transform:none}
  .bottom-tip{display:flex!important;margin:14px 0 8px;border-radius:18px;align-items:flex-start;flex-direction:column;font-size:14px;line-height:1.55;padding:13px 14px;width:auto}
  .mobile-quick{position:fixed;left:10px;right:10px;bottom:10px;z-index:120;display:grid!important;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:8px;border:1px solid rgba(150,195,255,.25);background:rgba(5,16,32,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:18px;box-shadow:0 18px 45px rgba(0,0,0,.36)}
  .mobile-quick a,.mobile-quick button{height:42px;border:0;border-radius:12px;color:#fff;font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center;text-decoration:none;background:linear-gradient(135deg,#2aa1ff,#2872f0);white-space:nowrap}
  .mobile-quick button{background:linear-gradient(135deg,#3b8cff,#8a3fff)}
  .footer{padding-bottom:88px}
}
@media (max-width:420px){
  .wrap{width:calc(100% - 18px)}
  .logo-title{font-size:17px}.logo-sub{display:none}
  .actions{grid-template-columns:1fr}
  .mobile-quick{grid-template-columns:1fr 1fr 1fr;left:8px;right:8px;bottom:8px}
  .mobile-quick a,.mobile-quick button{font-size:12px;height:40px}
}