/* ============================================
   前台样式 · 未来科幻风
   深色太空背景 + 星云光晕 + 科技网格 + 霓虹点缀
   ============================================ */
:root {
    --brand: #5b7cff;
    --brand-2: #38bdf8;
    --accent: #a78bfa;
    --accent-2: #22d3ee;
    --ink: #eaf2ff;         /* 主文字（浅色） */
    --ink-2: #c3d2e8;       /* 次级文字 */
    --ink-3: #94a8c4;       /* 正文文字 */
    --muted: #6b7f9e;       /* 弱化文字 */
    --line: rgba(120, 160, 220, .16);
    --line-strong: rgba(120, 160, 220, .32);
    --bg-panel: rgba(20, 32, 58, .6);     /* 卡片毛玻璃底 */
    --bg-panel-2: rgba(28, 42, 74, .55);
    --bg-code: #0a1120;
    --radius: 12px;
    --radius-lg: 16px;
    --mono: "SF Mono", "JetBrains Mono", "Fira Code", Consolas, "Courier New", monospace;
    --glow-blue: 0 0 24px rgba(91, 124, 255, .45);
    --glow-cyan: 0 0 24px rgba(34, 211, 238, .4);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background-color: #050a18;
    background-image:
        radial-gradient(1300px 700px at 88% -10%, rgba(91, 124, 255, .22), transparent 58%),
        radial-gradient(1000px 620px at -12% 24%, rgba(56, 189, 248, .16), transparent 55%),
        radial-gradient(900px 560px at 50% 110%, rgba(167, 139, 250, .18), transparent 60%),
        linear-gradient(180deg, #050a18 0%, #081128 45%, #0a1428 100%);
    background-attachment: fixed;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    letter-spacing: .1px;
    position: relative;
}
/* 全局星空粒子层 */
body::before {
    content: "";
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,.5), transparent),
        radial-gradient(1px 1px at 70% 15%, rgba(180, 210, 255, .6), transparent),
        radial-gradient(1.5px 1.5px at 85% 55%, rgba(255,255,255,.4), transparent),
        radial-gradient(1px 1px at 40% 75%, rgba(180, 210, 255, .5), transparent),
        radial-gradient(1.5px 1.5px at 10% 60%, rgba(255,255,255,.35), transparent),
        radial-gradient(1px 1px at 55% 40%, rgba(220, 235, 255, .5), transparent),
        radial-gradient(1.5px 1.5px at 92% 80%, rgba(255,255,255,.3), transparent);
    animation: twinkle 6s ease-in-out infinite alternate;
}
@keyframes twinkle {
    from { opacity: .45; }
    to { opacity: .9; }
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    transition: background .3s ease, box-shadow .3s ease;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; transition: height .3s ease; }
/* 只有滚动后才有半透明背景 */
.site-header.scrolled {
    background: rgba(255, 255, 255, .08) !important;
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border: none !important;
    box-shadow: 0 8px 28px rgba(0, 0, 0, .35) !important;
}
.site-header.scrolled .container { height: 51px; }
.site-header.scrolled .brand { font-size: 15px; }
.site-header.scrolled .brand-mark { width: 26px; height: 26px; font-size: 13px; }
/* CXT.CC 滚动后不缩小 */
.site-header.scrolled .brand-text b { font-size: 18px; }
.site-header.scrolled .brand-text small { font-size: 15px; }
.site-header.scrolled .main-nav a { font-size: 14px; padding: 7px 14px; }
.site-header.scrolled .nav-cta { padding: 7px 16px !important; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 18px; letter-spacing: -.2px; color: #fff; }
.brand-mark {
    width: 38px; height: 38px; border-radius: 10px;
    background: #ffffff; color: var(--brand);
    display: grid; place-items: center;
    font-size: 18px; font-weight: 800;
    box-shadow: 0 4px 16px rgba(91, 124, 255, .35);
}
.brand-logo {
    height: 38px; width: auto; max-width: 140px;
    object-fit: contain; border-radius: 6px;
}
.brand-text { display: flex; flex-direction: row; align-items: baseline; gap: 8px; line-height: 1.2; }
.brand-text b { display: inline; font-size: 18px; font-weight: 700; color: #fff; letter-spacing: -.3px; text-shadow: 0 0 16px rgba(91, 124, 255, .35); }
.brand-text small { display: inline; font-weight: 700; font-size: 15px; color: #ffffff; letter-spacing: 1px; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
    padding: 8px 16px; border-radius: 8px; font-weight: 500; font-size: 15px;
    color: var(--ink-3); transition: color .15s ease, background .15s ease;
}
.main-nav a:hover { color: #fff; background: rgba(120, 160, 220, .1); }
.main-nav a.active { color: #fff; font-weight: 600; }
/* 联系电话：无背景框，仅文字+图标风格 */
.nav-cta {
    margin-left: 12px; padding: 8px 16px !important; border-radius: 8px !important;
    background: transparent !important;
    color: #fff !important; font-weight: 600 !important;
    box-shadow: none !important;
    transition: color .15s ease, background .15s ease !important;
}
.nav-cta:hover { color: var(--brand-2) !important; background: rgba(120, 160, 220, .1) !important; transform: none !important; }

/* ---------- 通用 Section ---------- */
.section { padding: 96px 0; position: relative; }
.section-alt {
    background: rgba(16, 28, 52, .5);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(4px);
}
.section-head { max-width: 720px; margin: 0 auto 60px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head .eyebrow {
    display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 3px;
    color: var(--brand-2); text-transform: uppercase; margin-bottom: 16px;
    text-shadow: 0 0 16px rgba(34, 211, 238, .5);
}
.section-head h2 { font-size: 36px; font-weight: 700; letter-spacing: -.6px; margin: 0 0 16px; line-height: 1.25; color: #fff; }
.section-head p { color: var(--ink-3); font-size: 17px; margin: 0; }

/* ---------- Hero ---------- */
.hero {
    position: relative; overflow: hidden;
    margin-top: -64px;      /* 上移覆盖 header 区域，让科技蓝延伸到页面顶部 */
    padding: 184px 0 140px; /* 补偿上移的高度 */
    background:
        radial-gradient(1000px 560px at 85% -10%, rgba(56, 189, 248, .28), transparent 60%),
        radial-gradient(820px 480px at -8% 15%, rgba(91, 124, 255, .3), transparent 55%),
        linear-gradient(135deg, #0a2a6e 0%, #0d3aa0 35%, #123fae 60%, #0e4fc4 100%);
}
/* 科技网格 */
.hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 78%);
    mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 78%);
}
/* 底部科技地平线网格（透视感） */
.hero::after {
    content: "";
    position: absolute; left: 50%; bottom: -2px; transform: translateX(-50%);
    width: 160%; height: 300px;
    background:
        linear-gradient(transparent 49%, rgba(34, 211, 238, .22) 50%, transparent 51%),
        linear-gradient(90deg, transparent 49%, rgba(34, 211, 238, .14) 50%, transparent 51%);
    background-size: 60px 60px;
    -webkit-mask-image: linear-gradient(0deg, #000 0%, transparent 80%);
    mask-image: linear-gradient(0deg, #000 0%, transparent 80%);
    transform: translateX(-50%) perspective(500px) rotateX(60deg);
    transform-origin: bottom;
    pointer-events: none;
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 100px; font-size: 13px; font-weight: 500;
    color: #cfe0ff; background: rgba(91, 124, 255, .14);
    border: 1px solid rgba(120, 160, 255, .35); backdrop-filter: blur(6px);
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 10px rgba(34, 211, 238, .9); animation: pulse 2.2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 5px rgba(34,211,238,.6);} 50% { box-shadow: 0 0 16px rgba(34,211,238,1);} }
.hero h1 { margin: 28px 0 22px; font-size: 58px; line-height: 1.12; font-weight: 700; letter-spacing: -1.5px; color: #fff; text-shadow: 0 0 40px rgba(91, 124, 255, .35); }
.hero h1 .grad {
    background: linear-gradient(120deg, #7d9bff, var(--brand-2) 55%, var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
    filter: drop-shadow(0 0 22px rgba(56, 189, 248, .45));
}
.hero .lead { font-size: 18px; color: var(--ink-2); max-width: 480px; margin: 0 0 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .btn-primary {
    background: linear-gradient(120deg, #4a6cf0, var(--brand-2));
    box-shadow: 0 10px 30px rgba(91, 124, 255, .4);
}
.hero .btn-primary:hover { box-shadow: 0 14px 42px rgba(91, 124, 255, .65); transform: translateY(-1px); }
.hero .btn-ghost { background: rgba(120, 160, 255, .08); border-color: rgba(120, 160, 255, .35); color: var(--ink); backdrop-filter: blur(4px); }
.hero .btn-ghost:hover { border-color: var(--brand-2); color: #fff; }
.hero-stats { display: flex; gap: 48px; margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--line); }
.hero-stat .num { font-size: 30px; font-weight: 700; letter-spacing: -.6px; color: #fff; }
.hero-stat .num em { font-style: normal; color: var(--brand-2); text-shadow: 0 0 18px rgba(34, 211, 238, .5); }
.hero-stat .label { font-size: 13px; color: var(--muted); }

/* Hero 右侧：七大行星系统 */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-visual::before {
    content: "";
    position: absolute; inset: -10%; z-index: -1;
    background: radial-gradient(ellipse at center, rgba(91, 124, 255, .22), transparent 65%);
    filter: blur(20px);
}
.planet-system {
    position: relative; width: 420px; height: 420px;
}
/* 中心恒星 */
.sun {
    position: absolute; left: 50%; top: 50%;
    width: 74px; height: 74px; transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fff7d6, #ffd76a 40%, #ff9a3c 75%, #ff6a00);
    box-shadow: 0 0 40px rgba(255, 190, 80, .8), 0 0 90px rgba(255, 150, 50, .5), 0 0 140px rgba(255, 130, 40, .3);
    animation: sunGlow 3s ease-in-out infinite alternate;
}
@keyframes sunGlow {
    from { box-shadow: 0 0 40px rgba(255, 190, 80, .8), 0 0 90px rgba(255, 150, 50, .5), 0 0 140px rgba(255, 130, 40, .3); }
    to { box-shadow: 0 0 55px rgba(255, 210, 100, 1), 0 0 120px rgba(255, 170, 60, .6), 0 0 180px rgba(255, 140, 50, .4); }
}
/* 轨道 */
.orbit {
    position: absolute; left: 50%; top: 50%;
    border: 1px solid rgba(120, 160, 255, .22);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}
.planet {
    position: absolute; top: 50%; left: 50%;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}
/* 各轨道大小 */
.orbit-1 { width: 110px; height: 110px; }
.orbit-2 { width: 165px; height: 165px; }
.orbit-3 { width: 220px; height: 220px; }
.orbit-4 { width: 275px; height: 275px; }
.orbit-5 { width: 330px; height: 330px; }
.orbit-6 { width: 385px; height: 385px; }
.orbit-7 { width: 440px; height: 440px; }

/* 行星颜色与大小 */
.p1 { width: 14px; height: 14px; background: radial-gradient(circle at 30% 30%, #dbe4ff, #6d8dff); box-shadow: 0 0 12px rgba(109, 141, 255, .8); }
.p2 { width: 18px; height: 18px; background: radial-gradient(circle at 30% 30%, #ffd9c4, #ff8a5c); box-shadow: 0 0 14px rgba(255, 138, 92, .8); }
.p3 { width: 20px; height: 20px; background: radial-gradient(circle at 30% 30%, #c9f0ff, #38bdf8); box-shadow: 0 0 14px rgba(56, 189, 248, .8); }
.p4 { width: 16px; height: 16px; background: radial-gradient(circle at 30% 30%, #e8d9ff, #a78bfa); box-shadow: 0 0 12px rgba(167, 139, 250, .8); }
.p5 { width: 22px; height: 22px; background: radial-gradient(circle at 30% 30%, #ffe4c4, #f4b860); box-shadow: 0 0 16px rgba(244, 184, 96, .8); }
.p6 { width: 13px; height: 13px; background: radial-gradient(circle at 30% 30%, #d6ffe9, #4ade80); box-shadow: 0 0 12px rgba(74, 222, 128, .8); }
.p7 { width: 17px; height: 17px; background: radial-gradient(circle at 30% 30%, #ffd9e4, #fb7185); box-shadow: 0 0 12px rgba(251, 113, 133, .8); }

/* 公转动画：不同轨道不同速度 */
@keyframes orbit {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(var(--r)) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg) translateX(var(--r)) rotate(-360deg); }
}
.orbit-1 { --r: 55px; animation: spin 6s linear infinite; }
.orbit-2 { --r: 82.5px; animation: spin 9s linear infinite; }
.orbit-3 { --r: 110px; animation: spin 12s linear infinite; }
.orbit-4 { --r: 137.5px; animation: spin 15s linear infinite; }
.orbit-5 { --r: 165px; animation: spin 18s linear infinite; }
.orbit-6 { --r: 192.5px; animation: spin 22s linear infinite; }
.orbit-7 { --r: 220px; animation: spin 26s linear infinite; }
@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}
/* 行星定位到轨道边缘 */
.orbit .planet { top: 0; left: 50%; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: 8px; font-size: 15px; font-weight: 600;
    cursor: pointer; transition: all .15s ease; border: 1px solid transparent; line-height: 1;
}
.btn-primary { background: linear-gradient(120deg, var(--brand), var(--brand-2)); color: #fff; box-shadow: var(--glow-blue); }
.btn-primary:hover { box-shadow: 0 0 34px rgba(91, 124, 255, .6); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--brand-2); color: #fff; }
.btn-link { padding: 12px 4px; color: var(--brand-2); font-weight: 600; }
.btn-link:hover { opacity: .8; }

/* ---------- 特性卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature {
    text-align: left; padding: 28px 26px; border-radius: var(--radius);
    background: var(--bg-panel); border: 1px solid var(--line);
    backdrop-filter: blur(8px); transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.feature:hover { border-color: var(--line-strong); box-shadow: 0 12px 34px rgba(0,0,0,.35); transform: translateY(-3px); }
.feature .ic {
    width: 42px; height: 42px; margin: 0 0 18px; border-radius: 10px; display: grid; place-items: center;
    font-size: 21px; background: rgba(91, 124, 255, .12); border: 1px solid var(--line);
}
.feature h3 { font-size: 17px; font-weight: 600; margin: 0 0 8px; letter-spacing: -.2px; color: #fff; }
.feature p { font-size: 14.5px; color: var(--ink-3); margin: 0; }

/* ---------- 产品/方案卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.f-card {
    position: relative; background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 28px 26px; backdrop-filter: blur(8px);
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; display: flex; flex-direction: column;
}
.f-card:hover { border-color: rgba(91, 124, 255, .5); box-shadow: 0 16px 44px rgba(0,0,0,.4), 0 0 0 1px rgba(91,124,255,.15) inset; transform: translateY(-4px); }
.f-card .c-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.f-card .c-ic {
    width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
    font-size: 18px; background: rgba(91, 124, 255, .12); border: 1px solid var(--line);
}
.f-card .c-tag {
    font-size: 12px; font-weight: 500; padding: 3px 10px; border-radius: 100px;
    background: rgba(120, 160, 255, .1); color: var(--ink-2); border: 1px solid var(--line);
}
.f-card h3 { font-size: 19px; font-weight: 600; margin: 0 0 12px; letter-spacing: -.3px; color: #fff; }
.f-card .c-pain {
    margin: 0 0 14px; padding: 12px 14px 12px 16px;
    background: rgba(91, 124, 255, .08); border-left: 2px solid var(--brand); border-radius: 6px;
}
.f-card .c-pain .pain-label {
    display: inline-block; font-size: 12px; font-weight: 600; color: var(--brand-2);
    margin-bottom: 4px; letter-spacing: .5px;
}
.f-card .c-pain p { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.f-card .c-desc {
    color: var(--ink-3); font-size: 14.5px; line-height: 1.75; flex: 1;
    margin: 0 0 20px; padding: 0 0 0 14px; border-left: 2px solid var(--line-strong);
}
.f-card .c-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }
.f-card .c-tags span { font-size: 12px; color: var(--ink-2); background: rgba(120, 160, 255, .1); border: 1px solid var(--line); padding: 3px 10px; border-radius: 100px; }
.f-card .c-foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 18px; margin-top: auto; }
.f-card .c-price { font-weight: 600; color: var(--ink); font-size: 14px; }
.f-card .c-link { font-weight: 600; color: var(--brand-2); font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
.f-card .c-link:hover { text-decoration: underline; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
    border: 1px solid rgba(120, 160, 255, .28); border-radius: var(--radius-lg);
    padding: 64px; text-align: center; position: relative; overflow: hidden;
    background: linear-gradient(120deg, rgba(91, 124, 255, .16), rgba(56, 189, 248, .1));
    backdrop-filter: blur(6px);
}
.cta-band::before {
    content: ""; position: absolute; inset: 0;
    background-image: radial-gradient(rgba(120, 180, 255, .15) 1px, transparent 1px);
    background-size: 24px 24px; opacity: .5;
}
.cta-band h2 { font-size: 34px; font-weight: 700; margin: 0 0 14px; letter-spacing: -.6px; color: #fff; position: relative; }
.cta-band p { color: var(--ink-2); margin: 0 0 28px; font-size: 16px; position: relative; }
/* CTA 按钮组 */
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; position: relative; }
.cta-actions .btn-sm { width: auto; min-width: 0; padding: 10px 22px; font-size: 14px; }
.cta-band .btn-ghost { background: rgba(120, 160, 255, .08); border-color: rgba(120, 160, 255, .35); color: var(--ink); }
.cta-band .btn-ghost:hover { border-color: var(--brand-2); color: #fff; }

/* 通用小尺寸按钮 */
.btn-sm { padding: 10px 20px; font-size: 14px; border-radius: 8px; }

/* ---------- 内页页头 ---------- */
.page-hero { padding: 72px 0 0; }
.page-hero h1 { font-size: 44px; font-weight: 700; letter-spacing: -1px; margin: 0 0 12px; color: #fff; }
.page-hero p { color: var(--ink-3); font-size: 17px; margin: 0; }

/* ---------- 筛选 ---------- */
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 40px; }
.pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
    padding: 8px 18px; border-radius: 100px; font-size: 14px; font-weight: 500; cursor: pointer;
    background: var(--bg-panel); border: 1px solid var(--line); color: var(--ink-3);
    transition: all .15s ease; backdrop-filter: blur(6px);
}
.pill:hover { border-color: var(--brand-2); color: #fff; }
.pill.active { background: linear-gradient(120deg, var(--brand), var(--brand-2)); color: #fff; border-color: transparent; box-shadow: var(--glow-blue); }
.search-box { display: flex; gap: 8px; }
.search-box input {
    padding: 9px 16px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px;
    width: 240px; outline: none; transition: border-color .15s; font-family: inherit;
    background: var(--bg-panel); color: var(--ink); backdrop-filter: blur(6px);
}
.search-box input::placeholder { color: var(--muted); }
.search-box input:focus { border-color: var(--brand-2); box-shadow: 0 0 0 3px rgba(34, 211, 238, .12); }
.search-box .btn { padding: 9px 18px; }

/* ---------- 左右分屏（登录 + 注册） ---------- */
.auth-split {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: stretch;
    max-width: 920px;
    margin: 0 auto;
}
.auth-card { padding: 32px 30px; }
.auth-title {
    font-size: 22px !important;
    margin: 0 0 6px !important;
    background: linear-gradient(120deg, #4d6bfe, #38bdf8);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.auth-hint { color: #94a8c4; font-size: 13px; margin: 0 0 22px; }
.auth-card .field { margin-bottom: 16px; }
.auth-card .field label {
    display: block; font-size: 13px; font-weight: 600; color: #c3d2e8; margin-bottom: 7px;
}
.auth-card .input-wrap {
    display: flex; align-items: center; gap: 10px;
    background: rgba(6, 13, 28, .6);
    border: 1px solid rgba(120, 160, 255, .22);
    border-radius: 10px; padding: 0 14px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.auth-card .input-wrap:focus-within {
    border-color: var(--brand-2);
    background: rgba(6, 13, 28, .8);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, .15);
}
.auth-card .input-wrap .ic { display: flex; color: #7d92b8; transition: color .2s ease; }
.auth-card .input-wrap:focus-within .ic { color: var(--brand-2); }
.auth-card .input-wrap input {
    flex: 1; background: transparent; border: none; outline: none;
    padding: 11px 0; font-size: 14px; color: #eaf2ff; font-family: inherit;
}
.auth-card .input-wrap input::placeholder { color: #5d7090; }
.auth-card .modal-submit { margin-top: 8px; }
.auth-divider {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    width: 40px; gap: 12px;
}
.auth-divider-line {
    flex: 1; width: 1px;
    background: linear-gradient(180deg, transparent, rgba(120, 160, 255, .35), transparent);
}
.auth-divider-text {
    width: 36px; height: 36px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(91, 124, 255, .14);
    border: 1px solid rgba(120, 160, 255, .35);
    color: #c3d2e8; font-size: 12px; font-weight: 600; letter-spacing: 1px;
}
@media (max-width: 800px) {
    .auth-split { grid-template-columns: 1fr; }
    .auth-divider { flex-direction: row; width: auto; height: 30px; }
    .auth-divider-line { width: auto; height: 1px; background: linear-gradient(90deg, transparent, rgba(120, 160, 255, .35), transparent); }
}

/* ---------- 获取详细资料按钮 ---------- */
.btn-inquiry {
    display: block; width: 100%; margin-top: 14px; padding: 11px 16px;
    border-radius: 10px; border: 1px solid rgba(91, 124, 255, .4);
    background: rgba(91, 124, 255, .12); color: #cfe0ff;
    font-size: 14px; font-weight: 600; cursor: pointer;
    transition: all .2s ease; font-family: inherit;
}
.btn-inquiry:hover {
    background: linear-gradient(120deg, var(--brand), var(--brand-2));
    color: #fff; border-color: transparent; box-shadow: var(--glow-blue);
}
/* 详情页大号按钮 */
.btn-inquiry-lg {
    margin-top: 24px; padding: 14px 20px; font-size: 16px; border-radius: 12px;
    background: linear-gradient(120deg, var(--brand), var(--brand-2));
    color: #fff; border: none; box-shadow: var(--glow-blue);
}
.btn-inquiry-lg:hover { box-shadow: 0 0 40px rgba(91, 124, 255, .7); transform: translateY(-1px); }

/* ---------- 弹窗 ---------- */
.modal-mask {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(3, 8, 20, .7);
    backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease;
    padding: 20px;
}
.modal-mask.show { opacity: 1; visibility: visible; }
.modal-box {
    width: 100%; max-width: 460px; max-height: 90vh; overflow-y: auto;
    background: rgba(16, 28, 52, .92);
    border: 1px solid rgba(120, 160, 255, .28);
    border-radius: 18px; padding: 30px 30px 24px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, .6), 0 0 60px rgba(91, 124, 255, .2);
    transform: translateY(16px); transition: transform .25s ease;
}
.modal-mask.show .modal-box { transform: translateY(0); }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.modal-head h3 { font-size: 20px; color: #fff; margin: 0; }
.modal-close {
    width: 32px; height: 32px; border: none; border-radius: 8px;
    background: rgba(120, 160, 255, .12); color: #c3d2e8; font-size: 22px;
    cursor: pointer; line-height: 1; transition: all .15s ease;
}
.modal-close:hover { background: rgba(251, 113, 133, .2); color: #fff; }
.modal-sub { color: #94a8c4; font-size: 13px; margin: 0 0 20px; }
.modal-sub b { color: var(--brand-2); }
.modal-box .field { margin-bottom: 16px; }
.modal-box .field label { display: block; font-size: 13px; font-weight: 600; color: #c3d2e8; margin-bottom: 7px; }
.modal-box .field label em { color: #fb7185; font-style: normal; }
.modal-box .field input,
.modal-box .field textarea {
    width: 100%; padding: 11px 14px; border-radius: 10px;
    background: rgba(6, 13, 28, .6); border: 1px solid rgba(120, 160, 255, .22);
    color: #eaf2ff; font-size: 14px; outline: none; font-family: inherit;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.modal-box .field textarea { resize: vertical; min-height: 72px; }
.modal-box .field input::placeholder,
.modal-box .field textarea::placeholder { color: #5d7090; }
.modal-box .field input:focus,
.modal-box .field textarea:focus {
    border-color: var(--brand-2);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, .15);
}
.modal-submit {
    width: 100%; padding: 13px; border: none; border-radius: 12px;
    font-size: 16px; font-weight: 700; color: #fff; cursor: pointer;
    letter-spacing: 4px;
    background: linear-gradient(120deg, #4a6cf0, var(--brand-2));
    box-shadow: 0 10px 30px rgba(91, 124, 255, .4);
    transition: all .2s ease; font-family: inherit;
}
.modal-submit:hover { box-shadow: 0 14px 44px rgba(91, 124, 255, .65); transform: translateY(-1px); }
.modal-submit:disabled { opacity: .6; cursor: not-allowed; }
.modal-msg { text-align: center; font-size: 13px; margin: 14px 0 0; min-height: 18px; }

/* ---------- 详情页 ---------- */
.article { max-width: 780px; margin: 0 auto; }
.article .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.article .meta span { font-size: 13px; color: var(--ink-2); background: var(--bg-panel); border: 1px solid var(--line); padding: 5px 14px; border-radius: 100px; }
.value-boxes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.value-box { border-radius: var(--radius); padding: 26px; border: 1px solid var(--line); background: var(--bg-panel); backdrop-filter: blur(8px); }
.value-box .v-label { display: inline-block; font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.value-box p { margin: 0; font-size: 15px; line-height: 1.75; color: var(--ink-2); }
.value-box.pain { border-left: 3px solid #ff8a7a; }
.value-box.pain .v-label { color: #ff9d8f; }
.value-box.value { border-left: 3px solid var(--brand-2); }
.value-box.value .v-label { color: var(--brand-2); }
.article-body { background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 40px; backdrop-filter: blur(8px); }
.article-body h3 { font-size: 18px; margin: 28px 0 12px; color: #fff; }
.article-body h3:first-child { margin-top: 0; }
.article-body p { color: var(--ink-2); margin: 0 0 14px; }
.article-back { display: inline-flex; align-items: center; gap: 6px; margin-top: 28px; font-weight: 600; color: var(--ink); }
.article-back:hover { color: var(--brand-2); }
.empty-tip { text-align: center; padding: 60px 20px; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: var(--radius); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 72px 0 0; background: rgba(6, 12, 24, .6); }
.site-footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 56px; }
.site-footer .f-brand { font-size: 17px; font-weight: 700; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; color: #fff; }
.site-footer .f-brand .brand-mark { width: 30px; height: 30px; font-size: 15px; }
.site-footer p { font-size: 14px; color: var(--ink-3); margin: 0 0 8px; }
.site-footer h4 { font-size: 13px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: #fff; margin: 0 0 18px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 12px; }
.site-footer ul a { color: var(--ink-3); font-size: 14px; transition: color .15s; }
.site-footer ul a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid var(--line); padding: 22px 0; text-align: center; font-size: 13px; color: var(--muted); }
/* 友情链接 */
.friend-links { border-top: 1px solid var(--line); padding: 22px 0; }
.friend-links .container { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; }
.friend-links-title { font-size: 13px; font-weight: 600; color: #fff; letter-spacing: 1px; }
.friend-links a { color: var(--ink-3); font-size: 14px; transition: color .15s; }
.friend-links a:hover { color: #fff; }

/* ---------- 响应式 ---------- */
/* 汉堡菜单按钮（默认隐藏） */
.nav-toggle {
    display: none;
    flex-direction: column; gap: 5px;
    background: transparent; border: none; cursor: pointer;
    padding: 8px; z-index: 101;
}
.nav-toggle span {
    width: 22px; height: 2px; background: #fff;
    border-radius: 2px; transition: all .25s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
    .container { padding: 0 20px; }
    .hero { padding: 80px 0 70px; margin-top: -64px; }
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 40px; }
    .hero .lead { font-size: 16px; }
    .hero-visual { display: none; }
    .hero-stats { gap: 32px; flex-wrap: wrap; }
    .section { padding: 64px 0; }
    .section-head h2 { font-size: 30px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .site-footer .container { grid-template-columns: 1fr 1fr; }
    .cta-band { padding: 40px 24px; }
    .page-hero { padding: 56px 0 0; }
    .page-hero h1 { font-size: 34px; }
}

/* 移动端导航：切换为汉堡菜单 */
@media (max-width: 760px) {
    .site-header .container { height: 56px; }
    .nav-toggle { display: flex; }
    .main-nav {
        position: absolute; top: 56px; left: 0; right: 0;
        flex-direction: column; align-items: stretch;
        background: rgba(6, 13, 28, .95);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--line);
        padding: 8px 0;
        max-height: 0; overflow: hidden;
        opacity: 0; pointer-events: none;
        transition: max-height .3s ease, opacity .3s ease;
    }
    .main-nav.open { max-height: 400px; opacity: 1; pointer-events: auto; }
    .main-nav a {
        padding: 13px 24px; font-size: 16px; border-radius: 0;
        border-bottom: 1px solid rgba(120, 160, 220, .08);
    }
    .main-nav a.nav-cta { margin-left: 0; padding: 13px 24px !important; }
    .main-nav a:hover { background: rgba(120, 160, 220, .08); }
}

@media (max-width: 560px) {
    .hero { padding: 72px 0 60px; }
    .hero h1 { font-size: 32px; letter-spacing: -.8px; }
    .hero-eyebrow { font-size: 12px; }
    .hero-stats { gap: 20px; }
    .hero-stat .num { font-size: 24px; }
    .hero-stat .label { font-size: 12px; }
    .card-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
    .section-head h2 { font-size: 26px; }
    .site-footer .container { grid-template-columns: 1fr; }
    .value-boxes { grid-template-columns: 1fr; }
    .cta-band h2 { font-size: 26px; }
    .cta-actions .btn { width: 100%; justify-content: center; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .search-box input { width: 100%; }
    .pills { gap: 6px; }
    .pill { padding: 7px 14px; font-size: 13px; }
    /* 品牌：小屏隐藏 CXT.CC，保留品牌名 */
    .brand-text small { display: none; }
    .brand-text b { font-size: 16px; }
    .brand-mark { width: 32px; height: 32px; font-size: 15px; }
    .brand-logo { height: 32px; }
    /* 弹窗全宽 */
    .modal-box { padding: 24px 20px; margin: 10px; }
    .article-body { padding: 24px 18px; }
}