/* QuickQ quickqiqu.com.cn —— 玫红→紫罗兰「全速超频」主题 */
:root{
  --violet:#7c3aed; --violet-deep:#6d28d9; --violet-ink:#2e1065;
  --rose:#e11d48; --fuchsia:#d946ef; --pink:#f9a8d4; --pink-soft:#fdf2f8;
  --paper:#faf6fb; --white:#ffffff; --ink:#241023; --muted:#6b5a6b;
  --line:#ead9ef; --soft:#f4e9f6;
  --grad:linear-gradient(135deg,#d946ef 0%,#7c3aed 55%,#6d28d9 100%);
  --grad-warm:linear-gradient(135deg,#f43f5e 0%,#d946ef 60%,#7c3aed 100%);
  --grad-dark:linear-gradient(160deg,rgba(46,16,101,.96),rgba(36,16,35,.97));
  --shadow:0 10px 30px rgba(124,58,237,.12);
  --shadow-lg:0 24px 60px rgba(124,58,237,.22);
  --r:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.masthead{position:sticky;top:0;z-index:50;background:rgba(250,246,251,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.masthead .wrap{display:flex;align-items:center;gap:22px;height:66px}
.wordmark{display:flex;align-items:center;gap:11px;flex-shrink:0}
.wm-mark{width:34px;height:34px;border-radius:9px}
.wm-text{display:flex;flex-direction:column;line-height:1.1}
.wm-name{font-weight:800;font-size:18px;letter-spacing:.2px}
.wm-sub{font-size:10.5px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase;font-weight:600}
.nav-wrap{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-wrap>a{padding:8px 13px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--ink)}
.nav-wrap>a:hover,.nav-wrap>a.on{background:var(--soft);color:var(--violet-deep)}
.dd{position:relative}
.dd>button{background:none;border:none;font:inherit;font-size:14.5px;font-weight:600;color:var(--ink);padding:8px 13px;border-radius:9px;cursor:pointer}
.dd:hover>button{background:var(--soft);color:var(--violet-deep)}
.dd-menu{position:absolute;top:100%;left:0;min-width:176px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s;display:flex;flex-direction:column}
.dd:hover .dd-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dd-menu a{padding:8px 11px;border-radius:8px;font-size:14px;font-weight:500;color:var(--ink)}
.dd-menu a:hover{background:var(--soft);color:var(--violet-deep)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;font-weight:700;font-size:15px;padding:12px 22px;border:none;cursor:pointer;transition:.18s}
.btn-primary{background:var(--grad-warm);color:#fff;box-shadow:0 8px 22px rgba(225,29,72,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(225,29,72,.38)}
.btn-ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.26)}
.btn-outline{background:#fff;color:var(--violet-deep);border:1.5px solid var(--line)}
.btn-outline:hover{border-color:var(--violet);background:var(--pink-soft)}
.btn-sm{padding:8px 14px;font-size:13.5px}
.btn-lg{padding:15px 30px;font-size:16px}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section.alt{background:linear-gradient(180deg,#fff,var(--pink-soft))}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head.left{text-align:left;margin-left:0;margin-right:auto}
.sec-head h2{font-size:32px;font-weight:800;letter-spacing:-.5px;margin:12px 0 10px}
.sec-head p{color:var(--muted);font-size:16px}
.kicker{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--violet);background:var(--pink-soft);padding:5px 13px;border-radius:99px}

/* ---------- 居中 hero(虚化背景) ---------- */
.hero-cover{position:relative;overflow:hidden;color:#fff}
.hero-cover .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:blur(12px);transform:scale(1.12)}
.hero-cover .hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(46,16,101,.78) 0%,rgba(36,16,35,.9) 100%)}
.hero-cover .wrap{position:relative;z-index:2;padding-top:96px;padding-bottom:104px;display:flex;flex-direction:column;align-items:center;text-align:center}
.hero-cover::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px),radial-gradient(rgba(255,255,255,.18) 1.6px,transparent 1.6px);background-size:54px 54px,54px 54px,27px 27px;background-position:center,center,4px 4px;-webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.4) 55%,transparent 85%);mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.4) 55%,transparent 85%)}
.hero-cover::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(860px 420px at 16% -8%,rgba(217,70,239,.32) 0%,transparent 60%),radial-gradient(760px 400px at 88% 110%,rgba(124,58,237,.36) 0%,transparent 62%),repeating-linear-gradient(-45deg,rgba(255,255,255,.05) 0 1.5px,transparent 1.5px 16px)}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:800;letter-spacing:.5px;color:#f9a8d4;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:7px 15px;border-radius:99px}
.hero-kicker .dot{width:8px;height:8px;border-radius:50%;background:var(--grad-warm);box-shadow:0 0 0 4px rgba(217,70,239,.28)}
.hero-title{font-size:52px;line-height:1.12;font-weight:900;letter-spacing:-1px;margin:22px 0 18px;color:#fff}
.hero-title .hl{background:linear-gradient(135deg,#f9a8d4 0%,#d946ef 55%,#a78bfa 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17.5px;color:rgba(255,255,255,.82);max-width:660px;margin:0 auto 30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-bottom:26px}
.hero-trust{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.trust-item{font-size:13.5px;color:rgba(255,255,255,.78);font-weight:600;display:inline-flex;align-items:center;gap:7px}
.trust-item::before{content:"✓";color:#f9a8d4;font-weight:800}

/* ---------- 统计条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;display:flex;gap:16px;align-items:center;box-shadow:var(--shadow)}
.stat-card.good{background:linear-gradient(160deg,#fff 0%,#fdf2f8 100%)}
.stat-ic{font-size:30px}
.stat-num{font-size:21px;font-weight:800;color:var(--violet-deep)}
.stat-lbl{font-size:14px;color:var(--muted)}

/* ---------- 频谱柱带 ---------- */
.spectrum-band{position:relative;overflow:hidden}
.spectrum{width:100%;height:auto;display:block}
.spectrum-note{text-align:center;color:var(--muted);font-size:13px;margin-top:14px}
.bar{transform-origin:bottom;transform-box:fill-box;animation:eq 2.2s ease-in-out infinite}
@keyframes eq{0%,100%{transform:scaleY(1)}50%{transform:scaleY(.82)}}

/* ---------- 延迟阶梯带 ---------- */
.step-band{position:relative}
.stepchart{width:100%;height:auto;display:block}

/* ---------- 快速入口 / 相关卡 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel-grid.single{grid-template-columns:repeat(4,1fr)}
.rel-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:.2s}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--pink)}
.rel-card .tag{font-size:11.5px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--violet);background:var(--pink-soft);align-self:flex-start;padding:4px 10px;border-radius:99px}
.rel-card h4{font-size:18px;font-weight:800}
.rel-card p{font-size:14px;color:var(--muted)}

/* ---------- bento 玻璃拟态 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bento-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;box-shadow:var(--shadow)}
.bento.glass .bento-card{background:rgba(255,255,255,.62);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.9)}
.bento-card .ic{font-size:32px;margin-bottom:12px}
.bento-card h3{font-size:18px;font-weight:800;margin-bottom:8px}
.bento-card p{font-size:14.5px;color:var(--muted)}

/* ---------- 场景照片墙 ---------- */
.sc-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sc-card{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:3/4;display:block}
.sc-card img{width:100%;height:100%;object-fit:cover;transition:.45s;filter:saturate(.96)}
.sc-card:hover img{transform:scale(1.07);filter:saturate(1.12)}
.sc-cap{position:absolute;left:0;right:0;bottom:0;padding:38px 16px 16px;background:linear-gradient(180deg,transparent,rgba(36,16,35,.88));color:#fff}
.sc-cap h4{font-size:17px;font-weight:800;margin-bottom:3px}
.sc-cap p{font-size:13px;opacity:.85}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 20px;box-shadow:var(--shadow)}
.step .n{flex-shrink:0;width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center}
.step .b{display:flex;flex-direction:column;gap:8px;min-width:0}
.step h3{font-size:17px;font-weight:800;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--soft);color:var(--violet-deep);font-weight:800;font-size:13.5px}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#fbf7fe}

/* ---------- FAQ ---------- */
.faq-group{display:flex;flex-direction:column;gap:12px}
.faq-group h2{font-size:20px;font-weight:800;margin:10px 0 4px}
.faq-group details{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-group summary{cursor:pointer;padding:18px 20px;font-weight:700;font-size:15.5px;list-style:none;position:relative}
.faq-group summary::-webkit-details-marker{display:none}
.faq-group summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--violet);font-weight:400}
.faq-group details[open] summary::after{content:"−"}
.faq-a{padding:0 20px 18px;color:var(--muted);font-size:15px}

/* ---------- CTA ---------- */
.cta-band{background:var(--grad-dark);border-radius:26px;padding:56px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:var(--fuchsia);filter:blur(90px);opacity:.45;top:-90px;right:-40px}
.cta-band::after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:var(--violet);filter:blur(90px);opacity:.45;bottom:-100px;left:-40px}
.cta-band h2{font-size:30px;font-weight:900;margin-bottom:10px;position:relative;z-index:1}
.cta-band p{opacity:.82;margin-bottom:26px;font-size:15.5px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.mastfoot{background:var(--grad-dark);color:#fff;margin-top:0}
.mf-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;padding:56px 24px 40px}
.mf-brand .wm-name{color:#fff}
.mf-brand .wm-sub{color:rgba(255,255,255,.6)}
.mf-brand p{font-size:14px;color:rgba(255,255,255,.7);margin-top:16px;max-width:300px}
.mf-col{display:flex;flex-direction:column;gap:11px}
.mf-col h4{font-size:14px;font-weight:800;letter-spacing:.5px;margin-bottom:6px;color:#f9a8d4}
.mf-col a{font-size:14px;color:rgba(255,255,255,.75)}
.mf-col a:hover{color:#fff}
.foot-line{text-align:center;padding:20px 24px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 返回顶部 ---------- */
.backtop{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:13px;background:var(--grad-warm);color:#fff;font-size:20px;border:none;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;box-shadow:var(--shadow-lg);z-index:60}
.backtop.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 面包屑 / 页 hero ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);flex-wrap:wrap}
.breadcrumb a{color:var(--violet-deep);font-weight:600}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{opacity:.5}
.page-hero{background:radial-gradient(900px 360px at 80% -20%,#f3e8ff 0%,transparent 60%),var(--paper);border-bottom:1px solid var(--line);padding:54px 0 46px}
.page-hero h1{font-size:36px;font-weight:900;letter-spacing:-.5px;margin:14px 0 12px}
.page-hero p{color:var(--muted);font-size:16.5px;max-width:760px}

/* ---------- 左右图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split.rev>div:first-child{order:2}
.split h2{font-size:28px;font-weight:800;margin-bottom:14px}
.split p{color:var(--muted);font-size:15.5px;margin-bottom:16px}
.split ul{list-style:none;padding:0;margin:0 0 18px}
.split li{padding:7px 0 7px 28px;position:relative;color:var(--ink);font-size:15px}
.split li::before{content:"✓";position:absolute;left:0;color:var(--violet);font-weight:800}
.split .img img{border-radius:var(--r);box-shadow:var(--shadow-lg);width:100%;height:auto}

/* ---------- 文章 ---------- */
.article-hero{background:radial-gradient(900px 360px at 80% -20%,#f3e8ff 0%,transparent 60%),var(--paper);border-bottom:1px solid var(--line);padding:44px 0 38px}
.article-hero h1{font-size:33px;font-weight:900;letter-spacing:-.5px;margin:14px 0 12px;line-height:1.25}
.article-hero p{color:var(--muted);font-size:16px;max-width:820px}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;font-size:13.5px;color:var(--muted)}
.article-body{padding:48px 0 72px}
.article-layout{max-width:1080px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:220px 1fr;gap:44px}
.toc{position:sticky;top:90px;align-self:start;border-left:3px solid var(--pink);padding-left:16px}
.toc h4{font-size:13px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--violet-deep);margin-bottom:12px}
.toc a{display:block;font-size:14px;color:var(--muted);padding:5px 0}
.toc a:hover{color:var(--violet-deep)}
.prose{font-size:16px;color:var(--ink)}
.prose h2{font-size:23px;font-weight:800;margin:34px 0 12px;padding-left:13px;border-left:4px solid var(--violet)}
.prose p{margin:0 0 15px;color:#3d2a3a}
.prose ul,.prose ol{margin:0 0 18px;padding-left:24px}
.prose li{margin:7px 0}
.prose figure{margin:22px 0}
.prose figure img{border-radius:var(--r);width:100%;box-shadow:var(--shadow)}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.tip{background:#fff7ed;border:1px solid #fed7aa;border-radius:13px;padding:15px 18px;font-size:14.5px;margin:0 0 16px}
.callout{background:var(--pink-soft);border:1px solid var(--pink);border-radius:13px;padding:15px 18px;font-size:14.5px;margin:0 0 16px;color:var(--violet-ink)}
blockquote{border-left:4px solid var(--violet);padding:8px 0 8px 18px;margin:0 0 16px;color:var(--muted);font-style:italic}
.share{display:flex;gap:10px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap}
.share a{font-size:13.5px;font-weight:700;padding:8px 15px;border-radius:99px;background:var(--soft);color:var(--violet-deep)}
.share a:hover{background:var(--pink);color:#fff}

/* ---------- 工具页 ---------- */
.center-hero{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:60px 24px}
.center-hero h1{font-size:44px;font-weight:900;margin-bottom:12px}
.center-hero p{color:var(--muted);font-size:16px;margin-bottom:22px}
.search-box{display:flex;gap:10px;max-width:520px;margin:0 auto}
.search-box input{flex:1;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;outline:none}
.search-box input:focus{border-color:var(--violet)}
.sitemap-list h2{font-size:20px;font-weight:800;margin:26px 0 12px;color:var(--violet-deep)}
.sitemap-list>div{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 20px}
.sitemap-list a{font-size:14.5px;color:var(--ink);padding:4px 0}
.sitemap-list a:hover{color:var(--violet-deep)}

/* ---------- 渐显动效 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:.6s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .hero-cover .wrap{padding-top:64px;padding-bottom:72px}
  .hero-title{font-size:36px}
  .rel-grid,.rel-grid.single,.bento,.sc-wall,.steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split.rev>div:first-child{order:0}
  .mf-grid{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr}
  .toc{position:static;border-left:none;padding-left:0;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:8px}
}
@media(max-width:640px){
  .rel-grid,.rel-grid.single,.bento,.sc-wall,.steps,.stat-strip,.mf-grid,.sitemap-list>div{grid-template-columns:1fr}
  .nav-wrap>a,.nav-wrap .dd{display:none}
  .nav-toggle{display:block}
  .nav-wrap.open{position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px;border-bottom:1px solid var(--line)}
  .nav-wrap.open>a,.nav-wrap.open .dd{display:block}
  .nav-cta{display:none}
  .hero-title{font-size:31px}
  .section{padding:52px 0}
}

/* ===== 顶部状态条 topbar ===== */
.topbar{position:relative;z-index:60;background:linear-gradient(90deg,#2e1065,#6d28d9 55%,#d946ef);color:#fff;font-size:13px;text-align:center;padding:7px 16px;letter-spacing:.4px;font-weight:500}
.topbar .tb-sep{opacity:.5;margin:0 9px}