/* ===========================================================
   Quickq — q91 / Terracotta & Teal
   全新设计：地中海陶土 + 深海蓝绿配色
   布局差异：分栏Hero · 横条统计 · 双栏特性 · 连接步骤线
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --clr-primary: #6C5CE7;
  --clr-primary-dark: #5A4BD4;
  --clr-primary-light: #F0ECFF;
  --clr-primary-soft: #F7F5FF;
  --clr-primary-glow: rgba(108,92,231,.14);

  --clr-accent: #00B8A9;
  --clr-accent-light: #E6F7F5;
  --clr-accent-dark: #009688;

  --clr-bg: #F4F1DE;
  --clr-bg-alt: #F2EFE9;
  --clr-bg-card: #FFFFFF;
  --clr-bg-dark: #2B2D35;
  --clr-bg-hero: #3D405B;

  --clr-text: #2B2B2B;
  --clr-text2: #5C5C5C;
  --clr-text3: #999999;

  --clr-border: #E0DBD3;
  --clr-border-light: #EFEBE4;

  --clr-success: #81B29A;
  --clr-warn: #F2CC8F;
  --clr-danger: #FF5F6D;

  --grad-primary: linear-gradient(135deg, #FF5F6D 0%, #FFC371 20%, #6BCB77 40%, #4D96FF 66%, #9B5DE5 86%, #FF6FB5 100%);
  --grad-hero: radial-gradient(ellipse at 30% 20%, rgba(255,95,109,.12) 0%, transparent 60%),
               radial-gradient(ellipse at 80% 70%, rgba(77,150,255,.10) 0%, transparent 55%);

  --r-xs: 4px; --r-sm: 8px; --r-md: 12px; --r-lg: 18px; --r-xl: 26px;

  --shadow-xs: 0 1px 2px rgba(43,43,43,.04);
  --shadow-sm: 0 2px 4px rgba(43,43,43,.04), 0 1px 2px rgba(43,43,43,.02);
  --shadow-md: 0 4px 12px rgba(43,43,43,.06), 0 1px 3px rgba(43,43,43,.03);
  --shadow-lg: 0 12px 32px rgba(43,43,43,.08);
  --shadow-card-hover: 0 8px 24px rgba(43,43,43,.07), 0 2px 6px rgba(43,43,43,.03);
  --shadow-terra: 0 4px 18px rgba(108,92,231,.20);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --t-fast: .16s cubic-bezier(.4,0,.2,1);
  --t-md: .26s cubic-bezier(.4,0,.2,1);

  --w-max: 1160px;
  --w-text: 800px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;font-size:16px}
body{font-family:var(--font);font-size:15px;line-height:1.7;color:var(--clr-text);background:var(--clr-bg);overflow-x:hidden}
a{color:var(--clr-primary);text-decoration:none;transition:color var(--t-fast)}
a:hover{color:var(--clr-primary-dark)}
img{max-width:100%}
.container{max-width:var(--w-max);margin:0 auto;padding:0 28px}

/* ===== Header ===== */
.hdr{position:sticky;top:0;z-index:100;background:hsla(40,33%,92%,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--clr-border);transition:box-shadow var(--t-md)}
.hdr.scrolled{box-shadow:0 2px 16px rgba(43,43,43,.06)}
.hdr-inner{max-width:var(--w-max);margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;height:60px}
.hdr-logo{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;color:var(--clr-text);letter-spacing:-.3px}
.hdr-logo .lg{width:34px;height:34px;background:var(--grad-primary);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:17px;color:#fff;font-weight:800}
.hdr-nav{display:flex;align-items:center;gap:3px;list-style:none}
.hdr-nav a{padding:7px 13px;border-radius:var(--r-xs);font-size:13.5px;font-weight:500;color:var(--clr-text2);transition:all var(--t-fast)}
.hdr-nav a:hover{color:var(--clr-text);background:var(--clr-primary-soft)}
.hdr-nav a.active{color:var(--clr-primary);font-weight:600}
.hdr-cta{padding:8px 20px!important;background:var(--grad-primary)!important;color:#fff!important;border-radius:20px!important;font-weight:600!important;box-shadow:var(--shadow-terra)}
.hdr-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(108,92,231,.30);color:#fff!important}
.hdr-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px}
.hdr-toggle span{width:20px;height:2px;background:var(--clr-text);border-radius:1px;transition:all .3s cubic-bezier(.34,1.56,.64,1)}
.hdr-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hdr-toggle.active span:nth-child(2){opacity:0}
.hdr-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== Page Wrap ===== */
.wrap{padding-top:0;min-height:100vh}

/* ===== Hero — Split Layout ===== */
.hero{position:relative;padding:0 28px;overflow:hidden;background:var(--clr-bg-card)}
.hero-inner{max-width:var(--w-max);margin:0 auto;display:grid;grid-template-columns:1.2fr 0.8fr;gap:44px;align-items:center;min-height:420px;padding:52px 0}
.hero-txt{position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:7px;padding:5px 14px;background:var(--clr-primary-light);border-radius:20px;font-size:12px;font-weight:600;color:var(--clr-primary-dark);margin-bottom:20px}
.hero-badge::before{content:'';width:7px;height:7px;background:var(--clr-success);border-radius:50%}
.hero h1{font-size:clamp(28px,4.5vw,46px);font-weight:800;letter-spacing:-1px;line-height:1.12;margin-bottom:16px}
.hero h1 .hl{background:linear-gradient(135deg, #FF5F6D, #FFC371, #6BCB77, #4D96FF, #9B5DE5);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:15px;color:var(--clr-text2);max-width:480px;margin-bottom:28px;line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{position:relative;z-index:1;display:flex;align-items:center;justify-content:center}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}
.hero-stat{background:var(--clr-bg-alt);border-radius:var(--r-md);padding:20px 16px;text-align:center}
.hero-stat .num{font-size:26px;font-weight:800;color:var(--clr-primary)}
.hero-stat .lbl{font-size:11px;color:var(--clr-text3);margin-top:2px;font-weight:500}
.hero::after{content:'';position:absolute;right:0;top:0;bottom:0;width:40%;background:var(--clr-primary-soft);border-radius:0 0 0 60px;opacity:.5}

/* ===== Subpage Hero ===== */
.pg-hero{padding:44px 28px 32px;text-align:center;position:relative;background:var(--clr-bg-card)}
.pg-hero::before{content:'';position:absolute;inset:0;background:var(--grad-hero);pointer-events:none}
.pg-hero h1{font-size:clamp(24px,3.5vw,38px);font-weight:800;letter-spacing:-.8px;margin-bottom:8px;position:relative;z-index:1}
.pg-hero p{font-size:14.5px;color:var(--clr-text2);max-width:460px;margin:0 auto;line-height:1.7;position:relative;z-index:1}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 24px;font-size:14px;font-weight:600;border-radius:var(--r-sm);cursor:pointer;border:none;font-family:inherit;transition:all var(--t-fast);letter-spacing:.2px}
.btn-primary{background:var(--grad-primary);color:#fff;box-shadow:var(--shadow-terra)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(108,92,231,.28);color:#fff}
.btn-outline{background:transparent;color:var(--clr-text);border:1.5px solid var(--clr-border)}
.btn-outline:hover{border-color:var(--clr-primary);color:var(--clr-primary);background:var(--clr-primary-soft)}
.btn-accent{background:var(--clr-accent);color:#fff}
.btn-accent:hover{background:var(--clr-accent-dark)}
.btn-lg{padding:14px 30px;font-size:15.5px;border-radius:24px}
.btn-block{width:100%}

/* ===== Sections ===== */
.sec{padding:64px 28px}
.sec-alt{background:var(--clr-bg-alt)}
.sec-header{text-align:center;margin-bottom:40px}
.sec-tag{display:inline-flex;align-items:center;padding:4px 14px;background:var(--clr-accent-light);border-radius:12px;font-size:11.5px;font-weight:700;color:var(--clr-accent-dark);margin-bottom:12px;letter-spacing:.5px}
.sec-title{font-size:clamp(22px,3.2vw,30px);font-weight:800;letter-spacing:-.5px;margin-bottom:8px}
.sec-desc{font-size:14.5px;color:var(--clr-text2);max-width:480px;margin:0 auto;line-height:1.7}

/* ===== Stat Strip ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--clr-bg-card);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm)}
.stat-strip .stat-item{padding:22px 20px;text-align:center;border-right:1px solid var(--clr-border-light)}
.stat-strip .stat-item:last-child{border-right:none}
.stat-num{font-size:26px;font-weight:800;color:var(--clr-primary);line-height:1.2}
.stat-lbl{font-size:12px;color:var(--clr-text3);margin-top:4px;font-weight:500}

/* ===== Feature Cards (2-col) ===== */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.feat-card{background:var(--clr-bg-card);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--shadow-sm);transition:all var(--t-md);border-top:3px solid transparent}
.feat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-top-color:var(--clr-primary)}
.feat-card .ic{font-size:28px;margin-bottom:12px;display:block}
.feat-card h3{font-size:16px;font-weight:700;margin-bottom:6px;letter-spacing:-.2px}
.feat-card p{font-size:13.5px;color:var(--clr-text2);line-height:1.7}

/* ===== Steps (connected line) ===== */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step-grid::after{content:'';position:absolute;top:30px;left:50px;right:50px;height:2px;background:var(--clr-border);z-index:0}
.step-card{text-align:center;position:relative;z-index:1;padding:0 16px}
.step-num{width:44px;height:44px;background:var(--grad-primary);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;margin-bottom:14px;box-shadow:var(--shadow-terra)}
.step-card h3{font-size:15px;font-weight:700;margin-bottom:6px;letter-spacing:-.2px}
.step-card p{font-size:13px;color:var(--clr-text2);line-height:1.6;max-width:200px;margin:0 auto}

/* ===== Platform Cards ===== */
.plat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.plat-card{background:var(--clr-bg-card);border-radius:var(--r-md);padding:22px 16px;text-align:center;box-shadow:var(--shadow-sm);transition:all var(--t-md);display:block;color:var(--clr-text);border:1px solid var(--clr-border-light)}
.plat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--clr-primary-light)}
.plat-card .ic{font-size:30px;margin-bottom:8px;display:block}
.plat-card .nm{font-size:14px;font-weight:700;margin-bottom:4px;letter-spacing:-.2px}
.plat-card .ver{font-size:11px;color:var(--clr-text3);margin-bottom:8px}
.plat-card .tag{display:inline-block;padding:3px 12px;background:var(--clr-primary-light);color:var(--clr-primary-dark);font-size:11px;font-weight:600;border-radius:10px}
.plat-card .desc{font-size:12px;color:var(--clr-text3);line-height:1.5;margin-bottom:10px;display:block}

/* ===== Download Cards ===== */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:1040px;margin:0 auto}
.dl-card{background:var(--clr-bg-card);border:1px solid var(--clr-border-light);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--shadow-sm);transition:all var(--t-md)}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--clr-primary-light)}
.dl-card-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.dl-card-ico{width:42px;height:42px;background:var(--clr-primary-soft);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.dl-card-top h3{font-size:15px;font-weight:700;letter-spacing:-.2px}
.dl-card-top .sub{font-size:11px;color:var(--clr-text3)}
.dl-tag{display:inline-block;padding:2px 10px;border-radius:8px;font-size:10.5px;font-weight:600;margin-bottom:12px}
.dl-tag.stable{background:rgba(129,178,154,.15);color:var(--clr-success)}
.dl-feats{list-style:none;margin-bottom:16px}
.dl-feats li{padding:2px 0;font-size:12.5px;color:var(--clr-text2);display:flex;align-items:center;gap:6px}
.dl-feats li::before{content:'✓';color:var(--clr-success);font-weight:700;font-size:11px}

/* ===== Content Pages ===== */
.c-wrap{max-width:var(--w-text);margin:0 auto;padding:40px 28px 60px}
.b-card{background:var(--clr-bg-card);border:1px solid var(--clr-border-light);border-radius:var(--r-md);padding:22px 26px;margin-bottom:14px;box-shadow:var(--shadow-xs);transition:all var(--t-fast)}
.b-card:hover{border-color:var(--clr-border)}
.b-card h2{font-size:17px;font-weight:700;margin-bottom:10px;letter-spacing:-.2px;padding-bottom:10px;border-bottom:2px solid var(--clr-primary-light)}
.b-card p,.b-card li{font-size:13.5px;color:var(--clr-text2);line-height:1.8;margin-bottom:3px}
.b-card ul{padding-left:20px}
.b-card ol{padding-left:22px;margin:0}
.b-card code{font-family:var(--font-mono);font-size:12px;background:var(--clr-primary-soft);padding:2px 8px;border-radius:4px;color:var(--clr-primary)}
.b-card strong{color:var(--clr-text);font-weight:600}

/* ===== Feature List (guide page) ===== */
.flist{list-style:none}
.flist li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--clr-border-light)}
.flist li:last-child{border-bottom:none}
.flist .fico{font-size:24px;flex-shrink:0;width:32px;text-align:center}
.flist h4{font-size:15px;font-weight:700;margin-bottom:3px;letter-spacing:-.1px}
.flist p{font-size:13px;color:var(--clr-text2);line-height:1.65}

/* ===== Info Box ===== */
.note{background:var(--clr-primary-soft);border-left:3px solid var(--clr-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:14px 18px;margin:16px 0;font-size:13.5px;color:var(--clr-text2);line-height:1.7}
.note strong{color:var(--clr-primary-dark)}
.note-warn{border-left-color:var(--clr-warn);background:#FFFDF5}
.note-warn strong{color:#B8860B}

/* ===== Table ===== */
.tbl-wrap{overflow-x:auto;margin:12px 0}
.tbl{width:100%;border-collapse:collapse;font-size:13px;background:var(--clr-bg-card);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--clr-border-light)}
.tbl th{background:var(--clr-primary-soft);padding:12px 14px;text-align:left;font-weight:700;font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;border-bottom:2px solid var(--clr-border);color:var(--clr-text)}
.tbl td{padding:12px 14px;border-bottom:1px solid var(--clr-border-light);color:var(--clr-text2)}
.tbl tr:last-child td{border-bottom:none}
.tbl .y{color:var(--clr-success);font-weight:700}
.tbl .n{color:var(--clr-text3)}

/* ===== FAQ (semantic details/summary) ===== */
.faq-q{margin-bottom:10px;background:var(--clr-bg-card);border:1px solid var(--clr-border-light);border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--shadow-xs);transition:all var(--t-fast)}
.faq-q:hover{border-color:var(--clr-border);box-shadow:var(--shadow-sm)}
.faq-q summary{padding:18px 24px;font-weight:600;font-size:14.5px;color:var(--clr-text);cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}
.faq-q summary::after{content:'+';font-size:20px;color:var(--clr-primary);transition:transform var(--t-fast);font-weight:300}
.faq-q[open] summary{color:var(--clr-primary-dark);background:var(--clr-primary-soft)}
.faq-q[open] summary::after{content:'−'}
.faq-a{padding:0 24px 20px;font-size:13.5px;color:var(--clr-text2);line-height:1.8}

/* ===== CTA Box ===== */
.cta-box{background:var(--clr-bg-dark);border-radius:var(--r-xl);padding:44px 32px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-20%;right:-10%;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(108,92,231,.14),transparent 70%);pointer-events:none}
.cta-box h2{font-size:24px;font-weight:800;letter-spacing:-.5px;margin-bottom:10px;position:relative;z-index:1}
.cta-box p{font-size:14.5px;opacity:.6;margin-bottom:20px;position:relative;z-index:1}
.cta-box .btn-primary{box-shadow:0 4px 18px rgba(108,92,231,.22)}

/* ===== Friend Links ===== */
.links-bar{padding:22px 28px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;border-top:1px solid var(--clr-border);background:var(--clr-bg-card)}
.links-bar .lbl{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--clr-text3);margin-right:4px}
.links-bar a{font-size:12.5px;color:var(--clr-text3);padding:4px 12px;border-radius:14px;transition:all var(--t-fast)}
.links-bar a:hover{background:var(--clr-primary-light);color:var(--clr-primary-dark)}

/* ===== Footer ===== */
.foot{background:var(--clr-bg-dark);color:#fff;padding:52px 28px 32px}
.foot-grid{max-width:var(--w-max);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px}
.foot-brand .lg{width:36px;height:36px;background:var(--grad-primary);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:10px;color:#fff}
.foot-brand p{font-size:13px;color:rgba(255,255,255,.4);margin-top:8px;line-height:1.7;max-width:300px}
.foot-col h4{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:rgba(255,255,255,.22);margin-bottom:14px}
.foot-col a{display:block;font-size:13px;color:rgba(255,255,255,.4);padding:5px 0;transition:all var(--t-fast)}
.foot-col a:hover{color:var(--clr-primary);transform:translateX(4px)}
.foot-bottom{max-width:var(--w-max);margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.06);display:flex;justify-content:space-between;align-items:center;font-size:11px;color:rgba(255,255,255,.2)}
.foot-links{display:flex;gap:16px}
.foot-links a{color:rgba(255,255,255,.2);font-size:11px;transition:color var(--t-fast)}
.foot-links a:hover{color:var(--clr-primary)}

/* ===== Modal ===== */
.modal-ov{display:none;position:fixed;inset:0;background:rgba(43,43,43,.4);backdrop-filter:blur(4px);z-index:9999;justify-content:center;align-items:center}
.modal-ov.on{display:flex}
.modal{background:var(--clr-bg-card);border-radius:var(--r-lg);padding:40px 32px 32px;max-width:420px;width:90%;text-align:center;box-shadow:0 24px 56px rgba(43,43,43,.14);animation:modIn .28s cubic-bezier(.34,1.56,.64,1)}
@keyframes modIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.modal .ic{font-size:36px;margin-bottom:12px}
.modal h3{font-size:18px;font-weight:700;margin-bottom:6px;letter-spacing:-.3px}
.modal .ver{font-size:12px;color:var(--clr-primary);font-weight:600;margin-bottom:8px}
.modal p{font-size:13.5px;color:var(--clr-text2);margin-bottom:10px;line-height:1.6}
.modal .prog-wrap{height:4px;background:var(--clr-border-light);border-radius:2px;margin:14px 0;overflow:hidden}
.modal .prog-bar{height:100%;width:0;background:var(--grad-primary);border-radius:2px;transition:width .3s ease}
.modal .hint{font-size:12px;color:var(--clr-text3)}
.modal-btns{display:flex;gap:10px;justify-content:center;margin-top:18px}

/* ===== Scroll to Top ===== */
.to-top{position:fixed;bottom:24px;right:24px;width:42px;height:42px;background:var(--grad-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;box-shadow:var(--shadow-terra);transition:all var(--t-fast);opacity:0;pointer-events:none;z-index:98;border:none}
.to-top.on{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(108,92,231,.32)}

/* ===== Scroll Reveal ===== */
.fade-up{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.fade-up.in{opacity:1;transform:translateY(0)}

/* ===== Responsive ===== */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:32px;min-height:auto;padding:48px 0}
  .hero-visual{display:none}
  .hero::after{width:100%;height:200px;top:auto;bottom:0;border-radius:40px 40px 0 0}
  .feat-grid{grid-template-columns:1fr}
  .plat-grid{grid-template-columns:repeat(3,1fr)}
  .dl-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hdr-toggle{display:flex}
  .hdr-nav{display:none;position:fixed;top:60px;left:0;right:0;background:hsla(40,33%,92%,.98);backdrop-filter:blur(20px);flex-direction:column;padding:10px;gap:0;border-bottom:1px solid var(--clr-border);box-shadow:var(--shadow-lg)}
  .hdr-nav.open{display:flex}
  .hdr-nav a{padding:14px 16px;width:100%}
  .hdr-cta{margin-top:8px;text-align:center;width:100%}
  .hero-inner{padding:40px 0}
  .hero h1{font-size:26px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .pg-hero{padding:36px 16px 24px}.pg-hero h1{font-size:22px}
  .sec{padding:44px 16px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-strip .stat-item{border-right:none;border-bottom:1px solid var(--clr-border-light)}
  .stat-strip .stat-item:nth-child(n+3){border-bottom:none}
  .step-grid{grid-template-columns:1fr 1fr;gap:28px}
  .step-grid::after{display:none}
  .plat-grid{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr}
  .cta-box{border-radius:var(--r-md);padding:36px 20px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:10px;text-align:center}
  .c-wrap{padding:32px 16px 48px}
  .b-card{padding:18px 20px}
}

/* ===== 去内联样式外置（q91 优化 · 2026-07-18） ===== */
/* 页脚品牌行（白字 flex 行，原内联 15 处） */
.foot-logo { display:flex !important; align-items:center !important; gap:9px !important; color:#fff !important; }
/* 页脚品牌名（原内联 16 处） */
.foot-name { font-size:17px !important; font-weight:700 !important; }
/* 居中次级标题（原内联多处） */
.lead-h { font-size:20px !important; font-weight:700 !important; margin-bottom:16px !important; text-align:center !important; }
.lead-h-l { font-size:20px !important; font-weight:700 !important; margin-bottom:16px !important; margin-top:32px !important; }
/* 间距工具 */
.mt-8 { margin-top:8px !important; } .mt-12 { margin-top:12px !important; }
.mt-14 { margin-top:14px !important; } .mt-24 { margin-top:24px !important; } .mt-32 { margin-top:32px !important; }
/* 文字工具 */
.tx-center { text-align:center !important; }
.c-primary { color:var(--clr-primary) !important; }
.tx-14 { font-size:14px !important; } .tx-600 { font-weight:600 !important; }
/* 布局工具 */
.w-text { max-width:760px !important; margin:0 auto !important; padding:0 !important; }
.pl-20 { padding-left:20px !important; }
/* 白字 flex 行（gap 10，原内联 1 处） */
.fx-w { display:flex !important; align-items:center !important; gap:10px !important; color:#fff !important; }

/* 锚点滚动偏移（吸顶导航 60px） */
html { scroll-padding-top:74px; }

/* 尊重减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity:1 !important; transform:none !important; }
  html { scroll-behavior:auto; }
}

/* 键盘焦点可见性（a11y） */
:focus-visible{outline:2px solid var(--clr-primary);outline-offset:2px;border-radius:4px}
/* 跳过导航链接 */
.skip{position:absolute;left:-9999px;top:0;z-index:9999;background:var(--clr-primary);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;font-size:14px;font-weight:600;transition:none}
.skip:focus{left:0}

/* 顶部阅读进度条 */
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:200;pointer-events:none}
.read-progress-bar{height:100%;width:0;background:var(--grad-primary);transition:width .12s linear}

/* 面包屑导航 */
.breadcrumb{display:flex;align-items:center;gap:8px;max-width:var(--w-text);margin:18px auto 0;padding:0 28px;font-size:13px;color:var(--clr-text3)}
.breadcrumb a{color:var(--clr-text2);transition:color var(--t-fast)}
.breadcrumb a:hover{color:var(--clr-primary)}
.breadcrumb .sep{color:var(--clr-border);user-select:none}
.breadcrumb .cur{color:var(--clr-text);font-weight:600}
@media(max-width:640px){.breadcrumb{padding:0 16px;font-size:12px;margin-top:14px}}

/* 移动端底部固定下载条 */
.mob-dlbar{display:none}
@media(max-width:640px){
  .mob-dlbar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:150;padding:10px 16px;padding-bottom:calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--clr-border);box-shadow:0 -4px 20px rgba(43,43,43,.08)}
  .mob-dlbar .btn{width:100%}
  .wrap{padding-bottom:64px}
}

/* 英雄区背景光斑装饰增强 */
.hero::before{content:'';position:absolute;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(108,92,231,.22),transparent 70%);top:-120px;left:-90px;filter:blur(18px);z-index:0;pointer-events:none}
.pg-hero{overflow:hidden}
.pg-hero::after{content:'';position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(0,184,169,.16),transparent 70%);right:-70px;bottom:-90px;filter:blur(16px);z-index:0;pointer-events:none}
@media (prefers-reduced-motion: reduce){.hero::before,.pg-hero::after{display:none}}