/* ============================================================
   星晨CMS 官网样式 · 科技风配色版
   ============================================================ */

:root{
    --bg:#ffffff;
    --bg-soft:#f6f9ff;
    --bg-muted:#eef3fd;
    --text:#0b1220;
    --text-2:#4b5b75;
    --text-3:#8a9ab5;
    --border:#e2e8f5;
    --border-2:#d3dcef;

    --primary:#2563eb;
    --primary-h:#1d4ed8;
    --cyan:#06b6d4;
    --violet:#7c3aed;
    --grad:linear-gradient(120deg,#2563eb 0%,#06b6d4 100%);
    --grad-soft:linear-gradient(120deg,rgba(37,99,235,.12),rgba(6,182,212,.12));

    --radius:10px;
    --radius-lg:14px;
    --container:1120px;

    --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.7;
    color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;
    overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
h1,h2,h3{margin:0;line-height:1.3;font-weight:600;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding-left:1.3em}
code,pre{font-family:var(--mono)}
::selection{background:rgba(37,99,235,.18)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 头部 ---------- */
.header{position:sticky;top:0;z-index:100;
    background:rgba(255,255,255,.72);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:32px;height:64px}

/* Logo + Xcms 小字 */
.logo{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;
    color:var(--text);display:inline-flex;align-items:center;gap:9px}
.logo::before{content:"";width:9px;height:9px;border-radius:50%;
    background:var(--grad);
    box-shadow:0 0 0 4px rgba(37,99,235,.12),0 0 12px rgba(6,182,212,.6);
    position:relative;top:-1px}
.logo em{font-style:normal;font-size:10px;font-weight:600;
    letter-spacing:.12em;
    color:var(--text-3);margin-left:2px;padding-left:10px;
    position:relative;top:-1px;
    background:var(--grad);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent}
.logo em::before{content:"";position:absolute;left:0;top:50%;
    width:1px;height:10px;background:var(--border-2);
    transform:translateY(-50%)}

/* 导航 */
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{padding:6px 14px;font-size:14px;color:var(--text-2);
    border-radius:7px;transition:all .18s;position:relative}
.nav a:hover{color:var(--text);background:var(--bg-soft)}
.nav a::after{content:"";position:absolute;left:50%;bottom:-2px;
    width:0;height:2px;background:var(--grad);border-radius:2px;
    transform:translateX(-50%);transition:width .22s ease}
.nav a:hover::after{width:22px}

/* 当前页高亮 */
.nav a.active{color:var(--text);}
.nav a.active::after{width:22px}

.menu-toggle{display:none;flex-direction:column;gap:5px;width:32px;height:32px;
    padding:0;background:none;border:none;cursor:pointer;
    justify-content:center;align-items:center}
.menu-toggle span{display:block;width:18px;height:1.5px;background:var(--text);
    border-radius:2px;transition:.2s}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;
    padding:10px 22px;border-radius:9px;font-size:14px;font-weight:500;
    border:1px solid transparent;cursor:pointer;transition:all .2s;white-space:nowrap;
    position:relative}
.btn-primary{background:var(--grad);color:#fff;
    box-shadow:0 4px 14px -4px rgba(37,99,235,.45),
               inset 0 1px 0 rgba(255,255,255,.2)}
.btn-primary:hover{transform:translateY(-1px);
    box-shadow:0 10px 24px -6px rgba(37,99,235,.55),
               0 0 0 1px rgba(255,255,255,.15) inset}
.btn-outline{background:#fff;color:var(--text);border-color:var(--border-2)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);
    box-shadow:0 0 0 3px rgba(37,99,235,.08)}
.btn-sm{padding:7px 16px;font-size:13px;border-radius:8px}

/* ---------- Hero ---------- */
.hero{padding:96px 0 80px;text-align:center;position:relative;
    background:
        radial-gradient(900px 460px at 50% -10%,rgba(37,99,235,.10),transparent 62%),
        radial-gradient(700px 380px at 82% 22%,rgba(6,182,212,.10),transparent 65%),
        radial-gradient(620px 340px at 14% 30%,rgba(124,58,237,.08),transparent 68%),
        linear-gradient(180deg,#ffffff 0%,#f6f9ff 100%);
    border-bottom:1px solid var(--border);
    overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:
        linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.06) 1px,transparent 1px);
    background-size:48px 48px;
    -webkit-mask-image:radial-gradient(800px 400px at 50% 20%,#000 30%,transparent 80%);
            mask-image:radial-gradient(800px 400px at 50% 20%,#000 30%,transparent 80%)}
.hero .container{position:relative;z-index:1}

/* Hero 顶部的 XCMS 大标志 */
.brand-mark{display:flex;align-items:center;justify-content:center;
    gap:16px;margin-bottom:22px}
.brand-mark::before,
.brand-mark::after{content:"";width:40px;height:1px;
    background:linear-gradient(90deg,transparent,var(--border-2))}
.brand-mark::after{background:linear-gradient(90deg,var(--border-2),transparent)}
.brand-mark-text{font-family:var(--mono);font-size:15px;font-weight:700;
    letter-spacing:.42em;padding-left:.42em;
    background:var(--grad);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;
    text-shadow:0 0 24px rgba(37,99,235,.25)}

.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 15px;
    border-radius:999px;background:rgba(255,255,255,.7);
    border:1px solid var(--border-2);font-size:12px;color:var(--text-2);
    font-family:var(--mono);margin-bottom:26px;
    backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;
    background:#10b981;box-shadow:0 0 8px #10b981}
.hero h1{font-size:50px;line-height:1.14;margin:0 0 22px;letter-spacing:-.025em;
    font-weight:700;
    background:linear-gradient(120deg,#0b1220 0%,#2563eb 55%,#06b6d4 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;line-height:1.75;color:var(--text-2);
    max-width:640px;margin:0 auto 34px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.hero-visual{margin-top:72px;position:relative}
.hero-visual::before{content:"";position:absolute;left:50%;top:10%;
    width:70%;height:80%;transform:translateX(-50%);z-index:0;
    background:radial-gradient(closest-side,rgba(37,99,235,.18),transparent 70%);
    filter:blur(40px);pointer-events:none}
.browser{position:relative;z-index:1;max-width:820px;margin:0 auto;background:#fff;
    border:1px solid var(--border-2);border-radius:16px;overflow:hidden;
    box-shadow:
        0 1px 0 rgba(255,255,255,.8) inset,
        0 30px 80px -30px rgba(11,18,32,.28),
        0 0 0 6px rgba(37,99,235,.04)}
.browser-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;
    border-bottom:1px solid var(--border);
    background:linear-gradient(180deg,#fbfcff,#f4f7ff)}
.browser-bar span{width:9px;height:9px;border-radius:50%;background:#d1d5db}
.browser-bar span:nth-child(1){background:#fb7185}
.browser-bar span:nth-child(2){background:#fbbf24}
.browser-bar span:nth-child(3){background:#34d399}
.browser-bar em{margin:0 auto;padding:3px 16px;font-style:normal;font-size:11px;
    color:var(--text-3);background:#fff;border:1px solid var(--border);border-radius:5px;
    font-family:var(--mono)}
.browser-body{padding:30px;text-align:left}
.mock-nav{display:flex;align-items:center;margin-bottom:34px}
.mock-logo{width:64px;height:8px;border-radius:4px;background:var(--grad);opacity:.9}
.mock-links{margin-left:auto;display:flex;gap:12px}
.mock-links span{width:32px;height:6px;border-radius:3px;
    background:linear-gradient(90deg,#dbe4f5,#eef3fd)}
.mock-hero{text-align:center;padding:24px 0 36px}
.mock-h1{width:55%;height:18px;border-radius:4px;
    background:linear-gradient(90deg,#cfdcf5,#e6eefc);
    margin:0 auto 12px}
.mock-p{width:40%;height:8px;border-radius:4px;background:var(--bg-muted);
    margin:0 auto 20px}
.mock-btn{width:96px;height:28px;border-radius:8px;background:var(--grad);
    margin:0 auto;box-shadow:0 6px 16px -6px rgba(37,99,235,.6)}
.mock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mock-card{height:80px;border-radius:10px;
    background:linear-gradient(180deg,#fbfdff,#f3f7ff);
    border:1px solid var(--border);
    box-shadow:0 4px 12px -8px rgba(11,18,32,.15)}

/* ---------- Section ---------- */
.section{padding:96px 0}
.section-muted{background:
        radial-gradient(600px 200px at 20% 0%,rgba(37,99,235,.05),transparent 70%),
        radial-gradient(600px 200px at 90% 100%,rgba(6,182,212,.05),transparent 70%),
        var(--bg-soft);
    border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{text-align:center;margin-bottom:52px}
.section-head h2{font-size:30px;letter-spacing:-.02em;
    background:linear-gradient(120deg,#0b1220,#2563eb);
    -webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- 三栏特性 ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:44px}
.feature{position:relative;padding:32px 26px;border-radius:var(--radius-lg);
    background:linear-gradient(180deg,#ffffff,#fbfdff);
    border:1px solid var(--border);
    transition:all .25s ease}
.feature::before{content:"";position:absolute;inset:0;border-radius:inherit;
    padding:1px;pointer-events:none;
    background:linear-gradient(140deg,rgba(37,99,235,.5),rgba(6,182,212,.4) 55%,transparent 80%);
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
            mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
    -webkit-mask-composite:xor;mask-composite:exclude;
    opacity:0;transition:opacity .25s}
.feature:hover{transform:translateY(-4px);
    box-shadow:0 20px 44px -22px rgba(37,99,235,.35)}
.feature:hover::before{opacity:1}
.feature-num{font-family:var(--mono);font-size:12px;letter-spacing:.12em;
    margin-bottom:16px;font-weight:600;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;
    color:transparent}
.feature h3{font-size:19px;margin-bottom:12px;letter-spacing:-.01em;color:var(--text)}
.feature p{font-size:15px;line-height:1.75;color:var(--text-2)}

/* ---------- 场景标签 ---------- */
.scenes{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;
    max-width:780px;margin:0 auto}
.scene{padding:10px 22px;background:#fff;border:1px solid var(--border-2);
    border-radius:999px;font-size:14px;color:var(--text-2);
    transition:all .2s;position:relative}
.scene:hover{border-color:transparent;color:var(--primary);
    background:var(--grad-soft);
    box-shadow:0 0 0 3px rgba(37,99,235,.06)}

/* ---------- CTA ---------- */
.cta{text-align:center;padding:72px 32px;border-radius:var(--radius-lg);
    background:
        radial-gradient(500px 220px at 50% 0%,rgba(37,99,235,.10),transparent 70%),
        radial-gradient(420px 200px at 80% 100%,rgba(6,182,212,.10),transparent 70%),
        linear-gradient(180deg,#ffffff,#f5f9ff);
    border:1px solid var(--border-2);
    position:relative;overflow:hidden;
    box-shadow:0 30px 60px -40px rgba(37,99,235,.35)}
.cta::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
    background-image:
        linear-gradient(rgba(37,99,235,.07) 1px,transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.07) 1px,transparent 1px);
    background-size:40px 40px;
    -webkit-mask-image:radial-gradient(500px 260px at 50% 30%,#000 30%,transparent 85%);
            mask-image:radial-gradient(500px 260px at 50% 30%,#000 30%,transparent 85%)}
.cta > *{position:relative;z-index:1}
.cta h2{font-size:26px;margin-bottom:12px;letter-spacing:-.01em;
    background:linear-gradient(120deg,#0b1220,#2563eb 70%,#06b6d4);
    -webkit-background-clip:text;background-clip:text;color:transparent}
.cta p{color:var(--text-2);margin-bottom:28px;font-size:15px}

/* ---------- 友情链接 ---------- */
.friend-links{padding:64px 0;background:linear-gradient(180deg,#f6f9ff,#ffffff)}
.friend-links-title{text-align:center;font-size:16px;color:var(--text-2);
    font-weight:500;letter-spacing:.04em;margin-bottom:28px;position:relative}
.friend-links-title::before,
.friend-links-title::after{content:"";display:inline-block;
    width:36px;height:1px;background:var(--border-2);
    vertical-align:middle;margin:0 16px;position:relative;top:-2px}
.links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 32px;
    max-width:880px;margin:0 auto}
.links a{font-size:14px;color:var(--text-2);position:relative;
    padding:4px 0;transition:color .18s}
.links a:hover{color:var(--primary)}
.links a::after{content:"";position:absolute;left:0;right:0;bottom:0;
    height:1px;background:var(--grad);transform:scaleX(0);
    transform-origin:left;transition:transform .25s ease}
.links a:hover::after{transform:scaleX(1)}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--border);padding:34px 0;
    background:linear-gradient(180deg,#ffffff,#f6f9ff)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;
    gap:20px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.footer-links{display:flex;gap:20px;margin:0}
.footer-links a{color:var(--text-3);transition:color .15s}
.footer-links a:hover{color:var(--primary)}

/* ---------- 内页头 ---------- */
.page-head{padding:80px 0 52px;text-align:center;position:relative;
    border-bottom:1px solid var(--border);
    background:
        radial-gradient(700px 320px at 50% -20%,rgba(37,99,235,.12),transparent 65%),
        radial-gradient(500px 260px at 85% 20%,rgba(6,182,212,.10),transparent 70%),
        linear-gradient(180deg,#ffffff,#f6f9ff);
    overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:
        linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.06) 1px,transparent 1px);
    background-size:44px 44px;
    -webkit-mask-image:radial-gradient(700px 300px at 50% 30%,#000 30%,transparent 85%);
            mask-image:radial-gradient(700px 300px at 50% 30%,#000 30%,transparent 85%)}
.page-head .container{position:relative;z-index:1}
.page-head h1{font-size:40px;letter-spacing:-.025em;
    background:linear-gradient(120deg,#0b1220 0%,#2563eb 60%,#06b6d4 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent}
.page-head p{color:var(--text-2);margin-top:14px;font-size:16px}
.page-main{padding:80px 0}

/* ---------- 正文排版 ---------- */
.prose{max-width:720px;margin:0 auto;color:var(--text-2);
    font-size:16px;line-height:1.85}
.prose h2{color:var(--text);font-size:24px;margin:52px 0 16px;letter-spacing:-.01em;
    position:relative;padding-left:16px}
.prose h2::before{content:"";position:absolute;left:0;top:.35em;
    width:4px;height:1em;border-radius:2px;background:var(--grad)}
.prose h2:first-child{margin-top:0}
.prose h3{color:var(--text);font-size:17px;margin:32px 0 10px}
.prose p{margin:0 0 16px}
.prose li{margin-bottom:6px}
.prose strong{color:var(--text);font-weight:600}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--cyan)}
.prose code{font-family:var(--mono);font-size:.9em;
    background:linear-gradient(120deg,rgba(37,99,235,.08),rgba(6,182,212,.08));
    border:1px solid rgba(37,99,235,.15);
    padding:1px 7px;border-radius:5px;color:var(--primary)}
.prose pre{background:#0b1220;color:#e2e8f0;padding:22px;border-radius:12px;
    overflow-x:auto;font-size:13px;line-height:1.7;margin:22px 0;
    border:1px solid #1e293b;
    box-shadow:0 20px 50px -30px rgba(11,18,32,.6)}
.prose pre code{background:none;border:none;padding:0;color:inherit;font-size:inherit}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;
    border-radius:10px;overflow:hidden;
    box-shadow:0 0 0 1px var(--border)}
.prose table th,.prose table td{padding:11px 15px;
    border-bottom:1px solid var(--border);text-align:left}
.prose table tr:last-child td{border-bottom:0}
.prose table th{background:var(--grad-soft);color:var(--text);font-weight:600}
.prose > :first-child{margin-top:0}
.prose > :last-child{margin-bottom:0}

/* ---------- 纯文字列表（层次感版） ---------- */
.text-list{list-style:none;padding:0;margin:0;
    display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

.text-item{display:flex;background:#fff;border:1px solid var(--border);
    border-radius:var(--radius-lg);transition:all .22s ease;
    position:relative;overflow:hidden}
.text-item::before{content:"";position:absolute;left:0;top:0;bottom:0;
    width:3px;background:var(--grad);opacity:0;transition:opacity .22s ease}
.text-item:hover{transform:translateY(-3px);border-color:transparent;
    box-shadow:0 22px 46px -26px rgba(37,99,235,.4),
               0 0 0 1px rgba(37,99,235,.22)}
.text-item:hover::before{opacity:1}

.text-item a{display:flex;flex-direction:column;
    padding:22px 26px 18px;width:100%;color:inherit;min-height:210px}

/* 标题：淡色底 + 左侧竖线 */
.text-item-title{font-size:16px;color:var(--text);margin:0 0 16px;
    padding:10px 14px;border-radius:8px;line-height:1.45;
    letter-spacing:-.01em;
    background:linear-gradient(120deg,rgba(37,99,235,.07),rgba(6,182,212,.06));
    border-left:3px solid var(--primary);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
    overflow:hidden;transition:all .22s}
.text-item:hover .text-item-title{
    background:linear-gradient(120deg,rgba(37,99,235,.12),rgba(6,182,212,.10))}

/* 摘要：首行缩进 2 字 + 超出省略号 */
.text-item-summary{font-size:14px;color:var(--text-2);margin:0;
    line-height:1.75;text-indent:2em;flex:1;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;
    overflow:hidden;text-overflow:ellipsis}

/* 底部：日期右对齐 */
.text-item-foot{display:flex;justify-content:flex-end;align-items:center;
    margin-top:16px;padding-top:12px;border-top:1px dashed var(--border)}
.text-item-date{font-family:var(--mono);font-size:12px;
    color:var(--primary);letter-spacing:.04em;
    padding:2px 10px;border-radius:999px;
    background:linear-gradient(120deg,rgba(37,99,235,.08),rgba(6,182,212,.08));
    border:1px solid rgba(37,99,235,.12)}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;gap:6px;margin-top:52px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;
    min-width:36px;height:36px;padding:0 12px;border-radius:9px;
    border:1px solid var(--border);font-size:13px;color:var(--text-2);
    background:#fff;transition:all .18s}
.pagination a:hover{border-color:var(--primary);color:var(--primary);
    box-shadow:0 0 0 3px rgba(37,99,235,.08)}
.pagination .active,.pagination span.active{background:var(--grad);
    color:#fff;border-color:transparent;
    box-shadow:0 4px 14px -4px rgba(37,99,235,.5)}

/* ---------- 详情页 ---------- */
.detail{max-width:760px;margin:0 auto;padding:80px 24px}
.detail-head{padding-bottom:28px;border-bottom:1px solid var(--border);margin-bottom:36px}
.detail-head h1{font-size:32px;letter-spacing:-.02em;margin:0}
.detail-meta{margin-top:12px;font-family:var(--mono);font-size:13px;color:var(--primary)}
.detail-body{color:var(--text-2);font-size:16px;line-height:1.85}
.detail-body h2{color:var(--text);font-size:22px;margin:42px 0 14px;
    position:relative;padding-left:16px}
.detail-body h2::before{content:"";position:absolute;left:0;top:.35em;
    width:4px;height:1em;border-radius:2px;background:var(--grad)}
.detail-body h3{color:var(--text);font-size:17px;margin:28px 0 10px}
.detail-body p{margin:0 0 16px}
.detail-body ul,.detail-body ol{margin:0 0 16px;padding-left:1.3em}
.detail-body li{margin-bottom:6px}
.detail-body strong{color:var(--text)}
.detail-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.detail-body a:hover{color:var(--cyan)}
.detail-body code{font-family:var(--mono);font-size:.9em;
    background:linear-gradient(120deg,rgba(37,99,235,.08),rgba(6,182,212,.08));
    border:1px solid rgba(37,99,235,.15);
    padding:1px 7px;border-radius:5px;color:var(--primary)}
.detail-body pre{background:#0b1220;color:#e2e8f0;padding:22px;border-radius:12px;
    overflow-x:auto;font-size:13px;line-height:1.7;margin:22px 0;
    border:1px solid #1e293b;
    box-shadow:0 20px 50px -30px rgba(11,18,32,.6)}
.detail-body pre code{background:none;border:none;padding:0;color:inherit;font-size:inherit}
.detail-body img{border-radius:var(--radius);margin:20px 0}
.detail-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;
    border-radius:10px;overflow:hidden;box-shadow:0 0 0 1px var(--border)}
.detail-body table th,.detail-body table td{padding:11px 15px;
    border-bottom:1px solid var(--border);text-align:left}
.detail-body table tr:last-child td{border-bottom:0}
.detail-body table th{background:var(--grad-soft);color:var(--text)}
.detail-nav{display:flex;justify-content:space-between;gap:20px;
    margin-top:56px;padding-top:24px;border-top:1px solid var(--border);
    font-size:14px;color:var(--text-2)}
.detail-nav a{color:var(--text-2)}
.detail-nav a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
    .features{grid-template-columns:1fr;gap:28px}
    .hero h1{font-size:36px}
    .hero-sub{font-size:16px}
    .text-list{grid-template-columns:1fr}
    .nav{position:fixed;top:64px;left:0;right:0;flex-direction:column;gap:0;
        padding:12px;background:rgba(255,255,255,.98);
        backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
        border-bottom:1px solid var(--border);display:none}
    .nav.open{display:flex}
    .nav a{padding:12px 16px;border-radius:8px}
    .nav a::after{display:none}
    .nav a.active{background:var(--bg-soft)}
    .menu-toggle{display:flex}
    .header-cta{display:none}
}
@media(max-width:600px){
    .container{padding:0 20px}
    .hero{padding:64px 0 56px}
    .hero h1{font-size:28px}
    .hero-sub{font-size:15px}
    .hero-actions{flex-direction:column}
    .hero-actions .btn{width:100%}
    .brand-mark::before,.brand-mark::after{width:24px}
    .brand-mark-text{font-size:13px;letter-spacing:.34em;padding-left:.34em}
    .section{padding:64px 0}
    .section-head h2{font-size:24px}
    .page-head{padding:52px 0 36px}
    .page-head h1{font-size:28px}
    .page-main{padding:52px 0}
    .prose{font-size:15px}
    .prose h2{font-size:20px}
    .cta{padding:44px 22px}
    .cta h2{font-size:22px}
    .browser-body{padding:20px}
    .detail{padding:52px 20px}
    .detail-head h1{font-size:24px}
    .detail-body{font-size:15px}
    .detail-nav{flex-direction:column;gap:10px}
    .friend-links{padding:48px 0}
    .friend-links-title::before,.friend-links-title::after{width:20px;margin:0 10px}
    .links{gap:6px 20px}
    .footer-inner{flex-direction:column;text-align:center}
    .footer-links{justify-content:center}
}