/* ==========================================================================
   400号码网 · 企业通信服务
   现代商务视觉系统 v1.0
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
    --brand: #1E5BD6;
    --brand-600: #1648AE;
    --brand-500: #2E7BF6;
    --brand-50: #EEF4FF;
    --accent: #FF7A1A;
    --accent-600: #EA6002;
    --accent-50: #FFF3E8;

    --brand-rgb: 30, 91, 214;

    --navy: #08182F;
    --navy-700: #0D2440;
    --navy-600: #143154;

    /* Banner 渐变（由后台配色方案覆盖） */
    --hero-1: #33A6DE;
    --hero-2: #1282B4;
    --hero-3: #0B5F86;
    --hero-glow: rgba(80, 205, 255, .52);

    --ink: #0E1B2E;
    --ink-2: #33425A;
    --muted: #66758C;
    --muted-2: #8C99AD;
    --line: #E5EAF2;
    --line-2: #EFF2F7;
    --bg: #F5F7FB;
    --white: #fff;

    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 22px;
    --radius-xl: 30px;

    --shadow-xs: 0 1px 2px rgba(14, 27, 46, .05);
    --shadow-sm: 0 2px 8px rgba(14, 27, 46, .06);
    --shadow: 0 14px 34px -18px rgba(14, 27, 46, .22);
    --shadow-lg: 0 34px 70px -30px rgba(14, 27, 46, .32);

    --container: 1280px;
    --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Source Han Sans SC", sans-serif;
    font-size: 15.5px;
    line-height: 1.75;
    color: var(--ink-2);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 { color: var(--ink); margin: 0; line-height: 1.28; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
a { color: var(--brand); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand-600); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

/* 图标默认尺寸（各组件可覆盖） */
.ico { width: 18px; height: 18px; flex-shrink: 0; }
svg.ico { display: inline-block; vertical-align: -.18em; }

::selection { background: rgba(var(--brand-rgb), .16); }

.container { width: min(var(--container), 100% - 44px); margin-inline: auto; }
.is-hidden { display: none !important; }
.text-center { text-align: center; }

/* ---------- 3. 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    height: 50px; padding: 0 26px; border: 0; border-radius: 12px;
    font-size: 15.5px; font-weight: 600; letter-spacing: .01em;
    cursor: pointer; transition: all .22s var(--ease); white-space: nowrap;
}
.btn .ico { width: 18px; height: 18px; }
.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-500) 100%);
    box-shadow: 0 12px 26px -12px rgba(var(--brand-rgb), .7);
}
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 32px -14px rgba(var(--brand-rgb), .75); }
.btn-accent {
    color: #fff;
    background: linear-gradient(135deg, var(--accent-600), var(--accent));
    box-shadow: 0 12px 26px -12px rgba(255, 122, 26, .66);
}
.btn-accent:hover { color: #fff; transform: translateY(-2px); }
.btn-ghost {
    color: var(--ink); background: #fff; border: 1px solid var(--line);
    box-shadow: var(--shadow-xs);
}
.btn-ghost:hover { color: var(--brand); border-color: rgba(var(--brand-rgb), .4); transform: translateY(-2px); }
.btn-outline-light { color: #fff; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .24); }
.btn-outline-light:hover { color: #fff; background: rgba(255, 255, 255, .14); }
.btn-sm { height: 42px; padding: 0 18px; font-size: 14px; border-radius: 10px; }
.btn-block { width: 100%; }

/* ---------- 4. 顶栏 + 头部 ---------- */
.topbar {
    background: linear-gradient(90deg, var(--brand-600) 0%, var(--brand) 55%, var(--brand-500) 100%);
    color: rgba(255, 255, 255, .82);
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 40px; }
.topbar-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.topbar-badge {
    display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 99px;
    background: rgba(255, 122, 26, .16); color: #FFB27A; font-size: 12px; font-weight: 600; white-space: nowrap;
}
.topbar-notice { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar-links { display: flex; gap: 22px; flex-shrink: 0; }
.topbar-links a { color: rgba(255, 255, 255, .66); }
.topbar-links a:hover { color: #fff; }

.site-header {
    position: sticky; top: 0; z-index: 60;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--line-2);
    transition: box-shadow .25s var(--ease);
}
.site-header.is-stuck { box-shadow: 0 10px 30px -22px rgba(14, 27, 46, .4); }
.header-inner { display: flex; align-items: center; gap: 22px; height: 78px; }

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { height: 38px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text b { font-size: 16px; color: var(--ink); letter-spacing: .01em; white-space: nowrap; }
.brand-text span { font-size: 11px; color: var(--muted); white-space: nowrap; }

.main-nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.main-nav > li { flex: 0 0 auto; }
.main-nav > li > a {
    display: inline-flex; align-items: center; height: 40px; padding: 0 11px; border-radius: 10px;
    color: var(--ink-2); font-size: 14px; font-weight: 500; position: relative; white-space: nowrap;
}
.main-nav > li > a:hover { color: var(--brand); background: var(--brand-50); }
.main-nav > li > a.is-active { color: var(--brand); font-weight: 600; }
.main-nav > li > a.is-active::after {
    content: ""; position: absolute; left: 12px; right: 12px; bottom: -19px; height: 3px;
    background: linear-gradient(90deg, var(--brand), var(--brand-500)); border-radius: 3px 3px 0 0;
}

.header-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; padding-left: 14px; border-left: 1px solid var(--line); }
.header-tel { display: flex; align-items: center; gap: 9px; }
.header-tel .ico { width: 28px; height: 28px; color: var(--brand); flex-shrink: 0; }
.header-tel small { display: block; font-size: 11px; color: var(--muted); line-height: 1.3; white-space: nowrap; }
.header-tel strong { display: block; font-size: 18px; font-weight: 800; color: var(--ink); letter-spacing: .01em; line-height: 1.2; white-space: nowrap; }
.header-cta .btn { white-space: nowrap; flex-shrink: 0; }

.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); align-items: center; justify-content: center; }
.nav-toggle .ico { width: 22px; height: 22px; }

/* ---------- 5. Hero ---------- */
.hero {
    position: relative; overflow: hidden;
    background: radial-gradient(120% 120% at 82% 8%, var(--hero-1) 0%, var(--hero-2) 42%, var(--hero-3) 100%);
    color: #fff; padding: 74px 0 104px;
}
.hero::before {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
    background-size: 58px 58px;
    mask-image: radial-gradient(75% 65% at 50% 40%, #000 20%, transparent 100%);
    -webkit-mask-image: radial-gradient(75% 65% at 50% 40%, #000 20%, transparent 100%);
}
.hero::after {
    content: ""; position: absolute; width: 620px; height: 620px; right: -180px; top: -240px;
    background: radial-gradient(circle, var(--hero-glow), transparent 66%);
    filter: blur(20px); pointer-events: none;
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; gap: 54px; align-items: center; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border-radius: 99px;
    background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
    font-size: 13px; color: #CFE0FF; letter-spacing: .02em;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 0 4px rgba(74, 222, 128, .18); }

.hero h1 {
    color: #fff; font-size: clamp(34px, 4vw, 56px); line-height: 1.16; margin: 22px 0 20px;
    letter-spacing: -.02em; font-weight: 800;
}
.hero h1 em { font-style: normal; background: linear-gradient(100deg, #FFB27A, var(--accent) 45%, #FFD9A3); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { font-size: 16.5px; line-height: 1.85; color: rgba(255, 255, 255, .74); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-stats { display: flex; gap: 40px; margin-top: 46px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, .12); }
.hero-stats b { display: block; font-size: 28px; font-weight: 800; color: #fff; letter-spacing: -.01em; line-height: 1.2; }
.hero-stats span { font-size: 13px; color: rgba(255, 255, 255, .58); }

/* Hero 右侧卡片 */
.hero-panel { position: relative; }
.hero-card {
    position: relative; z-index: 2;
    background: linear-gradient(160deg, rgba(255, 255, 255, .13), rgba(255, 255, 255, .05));
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: var(--radius-lg);
    padding: 26px 26px 22px;
    backdrop-filter: blur(16px);
    box-shadow: 0 40px 70px -40px rgba(0, 0, 0, .8);
}
.hero-card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.hero-card-head b { font-size: 15px; color: #fff; letter-spacing: .02em; }
.hero-card-head span { font-size: 12px; color: rgba(255, 255, 255, .5); }
.hc-input {
    display: flex; align-items: center; gap: 10px; height: 48px; padding: 0 14px; margin-bottom: 12px;
    background: rgba(0, 0, 0, .22); border: 1px solid rgba(255, 255, 255, .14); border-radius: 11px;
}
.hc-input .ico { width: 18px; height: 18px; color: rgba(255, 255, 255, .55); flex-shrink: 0; }
.hc-input input {
    flex: 1; min-width: 0; border: 0; background: transparent; color: #fff; font-size: 14.5px; outline: none;
}
.hc-input input::placeholder { color: rgba(255, 255, 255, .42); }
.hero-card .btn { width: 100%; margin-top: 6px; height: 48px; }
.hero-card-tip { margin-top: 14px; font-size: 12px; color: rgba(255, 255, 255, .45); text-align: center; }
.hero-card-tip b { color: #FFC08A; font-weight: 600; }

.hero-float {
    position: absolute; z-index: 3; display: flex; align-items: center; gap: 12px;
    padding: 12px 16px; border-radius: 14px; background: #fff; color: var(--ink);
    box-shadow: 0 24px 40px -20px rgba(0, 0, 0, .5);
}
.hero-float .ico { width: 30px; height: 30px; color: var(--brand); }
.hero-float b { display: block; font-size: 14px; line-height: 1.3; }
.hero-float span { font-size: 11.5px; color: var(--muted); }
.hero-float.f1 { left: -34px; top: -42px; }
.hero-float.f2 { left: 0; right: auto; top: calc(100% + 22px); bottom: auto; }

/* ---------- 6. 区块通用 ---------- */
.section { padding: 78px 0; }
.section.tight { padding: 56px 0; }
.section.alt { background: var(--bg); }
.section.dark { background: var(--navy); color: rgba(255, 255, 255, .7); }
.section.dark h2, .section.dark h3 { color: #fff; }

.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.section-head .label {
    display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
    color: var(--brand); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px;
}
.section-head .label::before { content: ""; width: 22px; height: 2px; background: var(--brand); border-radius: 2px; }
.section-head h2 { font-size: clamp(26px, 2.6vw, 36px); letter-spacing: -.02em; }
.section-head .sub { margin-top: 12px; color: var(--muted); font-size: 15.5px; max-width: 640px; }
.section-head .more { display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px; font-weight: 600; color: var(--brand); white-space: nowrap; padding-bottom: 4px; }
.section-head .more .ico { width: 16px; height: 16px; transition: transform .22s var(--ease); }
.section-head .more:hover .ico { transform: translateX(4px); }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-head.center .sub { margin-inline: auto; }

/* ---------- 7. 首页：四大价值 ---------- */
.plates { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.plate {
    position: relative; padding: 30px 26px 26px; border-radius: var(--radius-lg);
    background: #fff; border: 1px solid var(--line);
    box-shadow: var(--shadow-xs); overflow: hidden;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.plate::after {
    content: ""; position: absolute; inset: auto -40px -60px auto; width: 140px; height: 140px; border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--brand-rgb), .1), transparent 70%); transition: opacity .3s;
}
.plate:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(var(--brand-rgb), .25); }
.plate-icon {
    width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 20px;
    background: linear-gradient(140deg, var(--brand-50), #DCE8FF); color: var(--brand);
}
.plate-icon .ico { width: 26px; height: 26px; }
.plate h3 { font-size: 18.5px; margin-bottom: 8px; }
.plate .plate-sub { font-size: 13px; color: var(--accent-600); font-weight: 600; margin-bottom: 12px; }
.plate p { font-size: 14px; color: var(--muted); line-height: 1.8; }
.plate .idx { position: absolute; top: 22px; right: 22px; font-size: 30px; font-weight: 800; color: var(--line); letter-spacing: -.02em; }

/* ---------- 8. 号码推荐 ---------- */
.tier-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.tier-tab {
    padding: 9px 20px; border-radius: 99px; border: 1px solid var(--line); background: #fff;
    font-size: 14.5px; font-weight: 500; color: var(--ink-2); cursor: pointer; transition: all .2s var(--ease);
}
.tier-tab .ico { width: 15px; height: 15px; vertical-align: -2px; margin-right: 5px; }
.tier-tab.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.tier-panel { display: none; }
.tier-panel.is-active { display: block; animation: fade .3s var(--ease); }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.number-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.number-item {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 18px 20px; border-radius: 14px; background: #fff; border: 1px solid var(--line);
    transition: all .24s var(--ease);
}
.number-item:hover { border-color: rgba(var(--brand-rgb), .32); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.number-item b { font-size: 19px; letter-spacing: .06em; color: var(--ink); font-variant-numeric: tabular-nums; }
.number-item small { display: block; font-size: 12px; color: var(--muted-2); letter-spacing: 0; margin-top: 2px; }
.number-item .go {
    width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0;
    background: var(--brand-50); color: var(--brand);
}
.number-item .go .ico { width: 16px; height: 16px; }
.tier-note { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 13.5px; color: var(--muted); }
.tier-note i { font-style: normal; padding: 3px 10px; border-radius: 6px; background: var(--accent-50); color: var(--accent-600); font-weight: 600; font-size: 12px; }

/* ---------- 8.1 超级靓号（选号中心实时同步） ---------- */
.super-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.super-card {
    position: relative; display: flex; flex-direction: column; gap: 12px;
    padding: 20px 20px 16px 22px; border-radius: 16px; background: #fff;
    border: 1px solid var(--line); overflow: hidden; transition: all .24s var(--ease);
}
.super-card::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: var(--brand); opacity: .85;
}
.super-card.is-crown::before { background: linear-gradient(180deg, #E7B84B, #B07A0C); }
.super-card.is-super::before { background: linear-gradient(180deg, var(--accent), var(--brand)); }
.super-card:hover { transform: translateY(-3px); border-color: rgba(var(--brand-rgb), .32); box-shadow: var(--shadow-sm); }
.super-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.super-tag {
    font-size: 11.5px; font-weight: 700; padding: 3px 9px; border-radius: 6px;
    background: var(--brand-50); color: var(--brand); white-space: nowrap;
}
.super-card.is-crown .super-tag { background: #FBF1D6; color: #96690A; }
.super-card.is-super .super-tag { background: var(--accent-50); color: var(--accent-600); }
.super-meta { font-size: 12px; color: var(--muted-2); text-align: right; line-height: 1.5; }
.super-code {
    font-size: 23px; letter-spacing: .045em; color: var(--ink);
    font-variant-numeric: tabular-nums; font-weight: 800;
}
.super-foot {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line);
    font-size: 12px; color: var(--muted-2);
}
.super-foot .go {
    width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
    background: var(--brand-50); color: var(--brand); flex-shrink: 0;
}
.super-foot .go .ico { width: 14px; height: 14px; }
.super-note { margin-top: 20px; font-size: 12.5px; line-height: 1.9; color: var(--muted-2); }

/* ---------- 9. 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.steps::before {
    content: ""; position: absolute; top: 34px; left: 8%; right: 8%; height: 1px;
    background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
}
.step { position: relative; text-align: center; padding: 0 8px; }
.step-num {
    width: 68px; height: 68px; margin: 0 auto 20px; border-radius: 20px;
    display: grid; place-items: center; font-size: 24px; font-weight: 800;
    background: #fff; border: 1px solid var(--line); color: var(--brand);
    box-shadow: 0 12px 24px -16px rgba(14, 27, 46, .3); position: relative; z-index: 2;
    transition: all .3s var(--ease);
}
.step:hover .step-num { background: linear-gradient(135deg, var(--brand), var(--brand-500)); color: #fff; border-color: transparent; }
.step h3 { font-size: 17px; margin-bottom: 9px; }
.step p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ---------- 10. 套餐 ---------- */
.pkg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pkg {
    position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    padding: 30px 28px; display: flex; flex-direction: column;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.pkg:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.pkg.is-featured {
    border-color: transparent; color: rgba(255, 255, 255, .8);
    background: radial-gradient(120% 120% at 80% 0%, var(--hero-1) 0%, var(--hero-2) 55%, var(--hero-3) 100%);
    box-shadow: 0 30px 60px -34px rgba(11, 37, 71, .9);
}
.pkg.is-featured h3, .pkg.is-featured .pkg-price b { color: #fff; }
.pkg.is-featured .pkg-list li { color: rgba(255, 255, 255, .8); }
.pkg.is-featured .pkg-list .ico { color: #7DD3FC; }
.pkg.is-featured .pkg-nums span { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .14); color: #fff; }
.pkg.is-featured .pkg-sub { color: rgba(255, 255, 255, .66); }
.pkg.is-featured .pkg-price span { color: rgba(255, 255, 255, .72); }
.pkg.is-featured .pkg-contract { color: rgba(255, 255, 255, .58); }
.pkg-badge {
    position: absolute; top: 20px; right: 20px; padding: 4px 11px; border-radius: 99px;
    background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
}
.pkg.is-featured .pkg-badge { background: var(--accent); }
.pkg h3 { font-size: 20px; margin-bottom: 6px; }
.pkg-sub { font-size: 13.5px; color: var(--muted); min-height: 22px; }
.pkg-price { display: flex; align-items: baseline; gap: 6px; margin: 18px 0 4px; }
.pkg-price b { font-size: 44px; font-weight: 800; color: var(--ink); letter-spacing: -.03em; line-height: 1; }
.pkg-price span { font-size: 14px; color: var(--muted); }
.pkg-contract { font-size: 12.5px; color: var(--muted-2); margin-bottom: 22px; }
.pkg-list { display: grid; gap: 11px; margin-bottom: 22px; }
.pkg-list li { display: flex; gap: 9px; font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.pkg-list .ico { width: 17px; height: 17px; color: var(--brand); flex-shrink: 0; margin-top: 3px; }
.pkg-nums { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 24px; }
.pkg-nums span {
    font-size: 12.5px; letter-spacing: .03em; padding: 4px 9px; border-radius: 7px;
    background: var(--bg); border: 1px solid var(--line-2); color: var(--ink-2); font-variant-numeric: tabular-nums;
}
.pkg .btn { margin-top: auto; }

/* ---------- 11. 功能 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
    display: flex; gap: 16px; padding: 24px; border-radius: var(--radius); background: #fff;
    border: 1px solid var(--line); transition: all .26s var(--ease);
}
.feature:hover { border-color: rgba(var(--brand-rgb), .26); box-shadow: var(--shadow-sm); transform: translateY(-4px); }
.feature-icon {
    width: 46px; height: 46px; border-radius: 13px; flex-shrink: 0; display: grid; place-items: center;
    background: linear-gradient(140deg, #EEF4FF, #E0EBFF); color: var(--brand);
}
.feature-icon .ico { width: 23px; height: 23px; }
.feature h3 { font-size: 16.5px; margin-bottom: 6px; }
.feature p { font-size: 13.8px; color: var(--muted); line-height: 1.75; }
.feature-rate { margin-top: 10px; display: flex; align-items: center; gap: 9px; font-size: 12px; color: var(--muted-2); }
.feature-rate .bar { flex: 1; height: 4px; border-radius: 99px; background: var(--line-2); overflow: hidden; }
.feature-rate .bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--brand), #63A0FF); }
.feature-rate b { color: var(--brand); font-weight: 700; }

/* 功能清单（小卡片） */
.mini-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.mini {
    padding: 20px; border-radius: 14px; background: #fff; border: 1px solid var(--line);
    transition: all .24s var(--ease);
}
.mini:hover { border-color: rgba(var(--brand-rgb), .26); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.mini h4 { font-size: 15.5px; margin-bottom: 6px; }
.mini .mini-sub { font-size: 12.5px; color: var(--accent-600); font-weight: 600; margin-bottom: 9px; }
.mini p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------- 12. 为何选择 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.why {
    position: relative; padding: 32px 28px; border-radius: var(--radius-lg); overflow: hidden;
    background: linear-gradient(160deg, #FBFCFE, #F2F6FD); border: 1px solid var(--line);
}
.why .ico { width: 34px; height: 34px; color: var(--brand); margin-bottom: 18px; }
.why h3 { font-size: 19px; margin-bottom: 10px; }
.why p { font-size: 14px; color: var(--muted); line-height: 1.85; }
.why::after { content: ""; position: absolute; right: -30px; bottom: -48px; width: 130px; height: 130px; border-radius: 50%; background: radial-gradient(circle, rgba(var(--brand-rgb), .1), transparent 70%); }

/* ---------- 13. 案例 ---------- */
.case-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.case-tab { padding: 8px 18px; border-radius: 99px; background: #fff; border: 1px solid var(--line); font-size: 14px; cursor: pointer; transition: all .2s var(--ease); }
.case-tab.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }
.case-panel { display: none; }
.case-panel.is-active { display: block; animation: fade .3s var(--ease); }
.case-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.case-item {
    display: flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 10px;
    background: #fff; border: 1px solid var(--line); border-radius: 12px; font-size: 13.5px;
    color: var(--ink-2); font-variant-numeric: tabular-nums; letter-spacing: .02em;
    transition: all .22s var(--ease);
}
.case-item img { width: 20px; height: 20px; object-fit: contain; border-radius: 4px; }
.case-item:hover { border-color: rgba(var(--brand-rgb), .3); color: var(--brand); box-shadow: var(--shadow-xs); }

/* ---------- 14. 新闻 ---------- */
.news-layout { display: grid; grid-template-columns: 1.55fr 1fr; gap: 30px; }
.news-list { display: grid; gap: 14px; }
.news-item {
    display: flex; gap: 18px; padding: 18px; border-radius: var(--radius); background: #fff;
    border: 1px solid var(--line); transition: all .24s var(--ease);
}
.news-item:hover { border-color: rgba(var(--brand-rgb), .24); box-shadow: var(--shadow-sm); transform: translateX(3px); }
.news-thumb {
    width: 132px; height: 92px; border-radius: 11px; overflow: hidden; flex-shrink: 0; background: var(--bg);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.news-item:hover .news-thumb img { transform: scale(1.06); }
.news-body { min-width: 0; display: flex; flex-direction: column; }
.news-body h3 { font-size: 16.5px; line-height: 1.5; margin-bottom: 7px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body p { font-size: 13.5px; color: var(--muted); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { margin-top: auto; padding-top: 10px; display: flex; gap: 14px; font-size: 12.5px; color: var(--muted-2); }

.news-side { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; height: fit-content; }
.news-side h3 { font-size: 17px; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line-2); }
.rank-list { display: grid; gap: 15px; counter-reset: rank; }
.rank-list li { display: flex; gap: 12px; counter-increment: rank; }
.rank-list li::before {
    content: counter(rank); width: 22px; height: 22px; border-radius: 6px; flex-shrink: 0;
    display: grid; place-items: center; font-size: 12px; font-weight: 700;
    background: var(--line-2); color: var(--muted); margin-top: 2px;
}
.rank-list li:nth-child(1)::before { background: var(--brand); color: #fff; }
.rank-list li:nth-child(2)::before { background: #3B82F6; color: #fff; }
.rank-list li:nth-child(3)::before { background: #93C5FD; color: #fff; }
.rank-list a { font-size: 14px; color: var(--ink-2); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rank-list a:hover { color: var(--brand); }

/* ---------- 15. CTA 条 ---------- */
.cta-band {
    position: relative; overflow: hidden; border-radius: var(--radius-xl);
    background: radial-gradient(120% 160% at 85% 10%, #1D4FAE 0%, #0C2445 55%, #07182D 100%);
    padding: 52px 56px; display: flex; align-items: center; justify-content: space-between; gap: 34px;
    color: #fff;
}
.cta-band::before {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
    background-size: 46px 46px; opacity: .6;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; font-size: clamp(24px, 2.3vw, 32px); margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, .7); font-size: 15px; }
.cta-band .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 16. 内页头部 ---------- */
.page-hero {
    background: linear-gradient(180deg, #F7F9FD 0%, #fff 100%);
    border-bottom: 1px solid var(--line-2); padding: 44px 0 46px; position: relative; overflow: hidden;
}
.page-hero::after {
    content: ""; position: absolute; right: -120px; top: -140px; width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(var(--brand-rgb), .12), transparent 68%);
}
.page-hero .container { position: relative; z-index: 1; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; font-size: 13px; color: var(--muted-2); margin-bottom: 18px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--brand); }
.crumbs .sep { color: var(--line); }
.page-hero h1 { font-size: clamp(28px, 3vw, 42px); letter-spacing: -.02em; }
.page-hero .lead { margin-top: 14px; font-size: 16px; color: var(--muted); max-width: 700px; }

/* ---------- 17. 内容排版 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 330px; gap: 36px; padding: 56px 0 78px; }
.article-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 40px 44px; }
.article-header h1 { font-size: clamp(26px, 2.6vw, 36px); line-height: 1.35; margin-bottom: 16px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--muted-2); padding-bottom: 22px; border-bottom: 1px solid var(--line-2); margin-bottom: 26px; }
.article-meta .tag { padding: 2px 10px; border-radius: 6px; background: var(--brand-50); color: var(--brand); font-weight: 600; }

.prose { font-size: 16px; line-height: 1.95; color: var(--ink-2); }
.prose > * + * { margin-top: 18px; }
.prose h2 { font-size: 22px; margin-top: 36px; padding-left: 14px; border-left: 4px solid var(--brand); line-height: 1.4; }
.prose h3 { font-size: 18px; margin-top: 28px; }
.prose p { margin: 0; }
.prose img { border-radius: 12px; margin: 24px auto; }
.prose a { text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 22px; display: grid; gap: 8px; }
.prose ul li { list-style: none; position: relative; padding-left: 18px; }
.prose ul li::before { content: ""; position: absolute; left: 0; top: .72em; width: 6px; height: 6px; border-radius: 2px; background: var(--brand); }
.prose ol { list-style: decimal; }
.prose blockquote { margin: 24px 0; padding: 18px 22px; background: var(--bg); border-left: 3px solid var(--brand); border-radius: 0 12px 12px 0; color: var(--ink-2); }
.prose table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.prose th { background: var(--bg); font-weight: 600; color: var(--ink); }

.article-nav { display: grid; gap: 10px; margin-top: 40px; padding-top: 26px; border-top: 1px solid var(--line-2); font-size: 14.5px; }
.article-nav a { display: flex; gap: 10px; color: var(--ink-2); }
.article-nav a:hover { color: var(--brand); }
.article-nav span { color: var(--muted-2); flex-shrink: 0; }

.side-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.side-box h3 { font-size: 16px; margin-bottom: 16px; }
.side-cta { background: radial-gradient(120% 140% at 80% 0%, #1B4DA8, #0B2547); color: rgba(255, 255, 255, .75); border: 0; }
.side-cta h3 { color: #fff; }
.side-cta .tel { font-size: 25px; font-weight: 800; color: #fff; letter-spacing: .01em; margin: 6px 0 16px; }

/* ---------- 18. 列表页 ---------- */
.list-page { padding: 50px 0 80px; display: grid; grid-template-columns: 1fr 300px; gap: 34px; }
.post-list { display: grid; gap: 18px; }
.post {
    display: flex; gap: 22px; padding: 22px; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius); transition: all .24s var(--ease);
}
.post:hover { border-color: rgba(var(--brand-rgb), .24); box-shadow: var(--shadow); }
.post-thumb { width: 210px; height: 140px; border-radius: 12px; overflow: hidden; flex-shrink: 0; background: var(--bg); }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.post:hover .post-thumb img { transform: scale(1.05); }
.post-body h2 { font-size: 19px; line-height: 1.5; margin-bottom: 9px; }
.post-body h2 a { color: var(--ink); }
.post-body h2 a:hover { color: var(--brand); }
.post-body p { font-size: 14px; color: var(--muted); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-foot { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 14px; font-size: 12.5px; color: var(--muted-2); }
.post-foot .k { padding: 2px 8px; border-radius: 6px; background: var(--bg); }

.pagination { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 36px; }
.pagination a, .pagination span {
    min-width: 42px; height: 42px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 10px; border: 1px solid var(--line); background: #fff; font-size: 14px; color: var(--ink-2);
}
.pagination a:hover { border-color: var(--brand); color: var(--brand); }
.pagination .is-current { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pagination .gap { border: 0; background: transparent; }

.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.filter-bar a { padding: 8px 18px; border-radius: 99px; background: #fff; border: 1px solid var(--line); font-size: 14px; color: var(--ink-2); }
.filter-bar a.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 19. 城市 ---------- */
.city-block { margin-bottom: 40px; }
.city-block h2 { font-size: 20px; margin-bottom: 18px; }
.city-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.city-chip {
    padding: 13px 10px; text-align: center; border-radius: 11px; background: #fff; border: 1px solid var(--line);
    font-size: 14px; color: var(--ink-2); transition: all .2s var(--ease);
}
.city-chip:hover { border-color: var(--brand); color: var(--brand); box-shadow: var(--shadow-xs); transform: translateY(-2px); }

/* ---------- 20. 表单 / 提示 ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; color: var(--ink-2); font-weight: 500; margin-bottom: 7px; }
.input, .select, .textarea {
    width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px;
    font: inherit; font-size: 14.5px; color: var(--ink); background: #fff; transition: all .2s var(--ease);
}
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(var(--brand-rgb), .1); }
.textarea { min-height: 120px; resize: vertical; }

.toast-wrap { position: fixed; top: 22px; left: 50%; transform: translateX(-50%); z-index: 9999; display: grid; gap: 10px; }
.toast {
    padding: 13px 22px; border-radius: 12px; background: #fff; box-shadow: var(--shadow-lg);
    border: 1px solid var(--line); font-size: 14px; color: var(--ink); animation: toastIn .3s var(--ease);
}
.toast.is-success { border-color: #BBF7D0; background: #F0FDF4; color: #047857; }
.toast.is-error { border-color: #FBD5D5; background: #FEF2F2; color: #B91C1C; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }

/* ---------- 21. 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, .58); padding: 62px 0 0; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.1fr; gap: 44px; padding-bottom: 44px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand p { line-height: 2; font-size: 13.5px; max-width: 360px; color: rgba(255, 255, 255, .62); }
.footer-tel { margin-top: 20px; }
.footer-tel small { display: block; font-size: 12px; color: rgba(255, 255, 255, .45); }
.footer-tel b { font-size: 26px; color: #fff; letter-spacing: .01em; font-weight: 800; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { color: rgba(255, 255, 255, .58); font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-cities { padding: 22px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); font-size: 13px; line-height: 2.1; }
.footer-cities b { color: #fff; font-weight: 600; margin-right: 8px; }
.footer-cities a { color: rgba(255, 255, 255, .5); margin-right: 14px; }
.footer-cities a:hover { color: #fff; }
.footer-bottom { padding: 22px 0 26px; display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; justify-content: space-between; font-size: 12.5px; color: rgba(255, 255, 255, .42); }
.footer-bottom a { color: rgba(255, 255, 255, .5); }
.footer-note { padding-bottom: 18px; font-size: 12px; color: rgba(255, 255, 255, .3); }

/* 悬浮客服 */
.float-service { position: fixed; right: 22px; bottom: 30px; z-index: 80; display: grid; gap: 10px; }
.float-service a, .float-service button {
    width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; border: 0;
    background: #fff; color: var(--brand); box-shadow: var(--shadow); cursor: pointer; position: relative;
    transition: all .22s var(--ease);
}
.float-service a:hover, .float-service button:hover { transform: translateY(-3px); }
.float-service .primary { background: linear-gradient(135deg, var(--brand), var(--brand-500)); color: #fff; }
.float-service .ico { width: 23px; height: 23px; }
.float-service .tip {
    position: absolute; right: 64px; top: 50%; transform: translateY(-50%) translateX(6px);
    background: var(--ink); color: #fff; font-size: 12.5px; padding: 6px 12px; border-radius: 8px;
    white-space: nowrap; opacity: 0; pointer-events: none; transition: all .2s var(--ease);
}
.float-service a:hover .tip, .float-service button:hover .tip { opacity: 1; transform: translateY(-50%); }


/* ---------- 底部转化区 ---------- */
.lead-section { background: linear-gradient(180deg, #fff 0%, #F5F8FE 100%); }
.lead-cta {
    display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    padding: 44px 46px; box-shadow: var(--shadow);
}
.lead-eyebrow {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 99px;
    background: var(--brand-50); color: var(--brand); font-size: 12.5px; font-weight: 600;
}
.lead-cta-copy h2 { font-size: clamp(22px, 2.2vw, 30px); margin: 16px 0 12px; letter-spacing: -.01em; }
.lead-cta-copy p { font-size: 15px; line-height: 1.9; color: var(--muted); max-width: 520px; }
.lead-points { margin-top: 20px; display: grid; gap: 10px; }
.lead-points li { display: flex; align-items: flex-start; gap: 9px; font-size: 14px; color: var(--ink-2); }
.lead-points .ico { width: 17px; height: 17px; color: var(--ok); margin-top: 2px; flex-shrink: 0; }
.lead-tel { margin-top: 24px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.lead-tel small { font-size: 12.5px; color: var(--muted-2); }
.lead-tel a { display: inline-flex; align-items: center; gap: 7px; font-size: 21px; font-weight: 800; color: var(--brand); letter-spacing: .01em; }
.lead-tel .ico { width: 20px; height: 20px; }
.lead-cta-form { background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 24px; }
.lead-cta-form .lead-form .field { margin-bottom: 12px; }
.lead-cta-form .lead-form .btn { margin-top: 4px; height: 48px; }
.lead-cta-form .hero-card-tip { color: var(--muted-2); }
.lead-cta-form .hero-card-tip b { color: var(--ink); }
@media (max-width: 1024px) {
    .lead-cta { grid-template-columns: 1fr; gap: 28px; padding: 30px 24px; }
}

/* ---------- 22. 响应式 ---------- */
/* 头部随宽度逐级瘦身，避免导航换行或 CTA 溢出 */
@media (max-width: 1360px) {
    .brand-text span { display: none; }
    .header-inner { gap: 16px; }
    .main-nav > li > a { padding: 0 9px; font-size: 13.5px; }
}
@media (max-width: 1180px) {
    .header-tel small { display: none; }
    .header-cta .btn { padding: 0 14px; }
    .hero .container { gap: 36px; }
    .hero-float.f1 { left: -10px; }
    .hero-float.f2 { right: 0; }
    .plates { grid-template-columns: repeat(2, 1fr); }
    .mini-grid { grid-template-columns: repeat(3, 1fr); }
    .case-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
    .header-inner { height: 70px; gap: 18px; }
    .main-nav {
        position: fixed; inset: 0 0 auto; top: 0; padding: 84px 22px 30px;
        background: #fff; flex-direction: column; align-items: stretch; gap: 2px;
        transform: translateY(-100%); transition: transform .3s var(--ease);
        height: 100vh; overflow: auto; z-index: 55; margin: 0;
    }
    .main-nav.is-open { transform: none; }
    .main-nav > li > a { height: 52px; border-radius: 10px; font-size: 16px; border-bottom: 1px solid var(--line-2); }
    .main-nav > li > a.is-active::after { display: none; }
    .nav-toggle { display: inline-flex; }
    .header-cta { margin-left: auto; padding-left: 0; border-left: 0; }
    .header-tel { display: none; }
    .topbar-links { display: none; }
    .hero { padding: 52px 0 70px; }
    .hero .container { grid-template-columns: 1fr; }
    .hero-panel { max-width: 460px; }
    .hero-float { display: none; }
    .section { padding: 58px 0; }
    .pkg-grid, .feature-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .steps::before { display: none; }
    .news-layout, .article-layout, .list-page { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .city-grid { grid-template-columns: repeat(4, 1fr); }
    .cta-band { flex-direction: column; align-items: flex-start; padding: 38px 32px; }
    .number-grid { grid-template-columns: repeat(2, 1fr); }
    .super-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    body { font-size: 15px; }
    .container { width: calc(100% - 32px); }
    .hero h1 { font-size: 32px; }
    .hero-stats { gap: 24px; }
    .hero-stats b { font-size: 22px; }
    .plates, .pkg-grid, .feature-grid, .why-grid, .steps { grid-template-columns: 1fr; }
    .mini-grid { grid-template-columns: repeat(2, 1fr); }
    .number-grid { grid-template-columns: 1fr; }
    .super-grid { grid-template-columns: 1fr; }
    .super-card { padding: 16px 18px 14px 20px; }
    .super-code { font-size: 22px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
    .post { flex-direction: column; }
    .post-thumb { width: 100%; height: auto; aspect-ratio: 3 / 2; }
    .news-item { flex-direction: column; }
    .news-thumb { width: 100%; height: auto; aspect-ratio: 3 / 2; }
    .article-card { padding: 24px 20px; }
    .article-layout { padding: 34px 0 60px; }
    .city-grid { grid-template-columns: repeat(3, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr; }
    .page-hero { padding: 32px 0 34px; }
    .float-service { right: 14px; bottom: 18px; }
    .float-service a, .float-service button { width: 48px; height: 48px; border-radius: 14px; }
}

/* 手机端头部压缩：避免品牌名 + CTA 撑破一行 */
@media (max-width: 560px) {
    .header-inner { gap: 10px; height: 64px; }
    .brand { gap: 8px; flex: 1 1 auto; min-width: 0; }
    .brand img { height: 32px; }
    .brand-text { min-width: 0; }
    .brand-text b { font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; }
    .header-cta { gap: 8px; padding-left: 10px; }
    .header-cta .btn { display: none; }
    .nav-toggle { width: 44px; height: 44px; border-radius: 12px; }
}

@media (max-width: 520px) {
    .hero-actions .btn { width: 100%; }
    .mini-grid { grid-template-columns: 1fr; }
    .city-grid { grid-template-columns: repeat(2, 1fr); }
    .article-card { padding: 20px 16px; }
}

/* ---------- 23. 补充：Hero 表单 / 快捷入口 ---------- */
.hero-copy { min-width: 0; }
.hero-card .lead-form .field { margin-bottom: 11px; }
.hero-card .lead-form .input {
    height: 48px; background: rgba(0, 0, 0, .22); border: 1px solid rgba(255, 255, 255, .14);
    color: #fff; border-radius: 11px; font-size: 14.5px;
}
.hero-card .lead-form .input::placeholder { color: rgba(255, 255, 255, .42); }
.hero-card .lead-form .input:focus { border-color: rgba(120, 170, 255, .7); box-shadow: 0 0 0 4px rgba(46, 123, 246, .18); }
.hero-card .lead-form .btn { height: 48px; margin-top: 4px; }

.quick-strip { margin-top: -34px; position: relative; z-index: 5; }
.quick-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
    background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--line);
    box-shadow: var(--shadow); overflow: hidden;
}
.quick {
    display: flex; align-items: center; gap: 14px; padding: 24px 26px;
    border-right: 1px solid var(--line-2); transition: background .22s var(--ease);
}
.quick:last-child { border-right: 0; }
.quick:hover { background: var(--brand-50); }
.quick-ico {
    width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
    background: linear-gradient(140deg, #EEF4FF, #DEEAFF); color: var(--brand); flex-shrink: 0;
}
.quick-ico .ico { width: 22px; height: 22px; }
.quick b { display: block; font-size: 15.5px; color: var(--ink); margin-bottom: 2px; }
.quick span { font-size: 12.5px; color: var(--muted); }

@media (max-width: 1024px) {
    .quick-grid { grid-template-columns: repeat(2, 1fr); }
    .quick:nth-child(2) { border-right: 0; }
    .quick:nth-child(1), .quick:nth-child(2) { border-bottom: 1px solid var(--line-2); }
}
@media (max-width: 640px) {
    .quick-grid { grid-template-columns: 1fr; }
    .quick { border-right: 0; border-bottom: 1px solid var(--line-2); padding: 18px 20px; }
    .quick-strip { margin-top: -22px; }
}

/* ==========================================================================
   24. 内页组件
   ========================================================================== */

/* 价值 / 痛点 / 优势 卡片 */
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.value-card {
    display: flex; gap: 20px; padding: 30px; border-radius: var(--radius-lg);
    background: #fff; border: 1px solid var(--line); transition: all .26s var(--ease);
}
.value-card:hover { border-color: rgba(var(--brand-rgb), .26); box-shadow: var(--shadow); transform: translateY(-4px); }
.value-num {
    font-size: 34px; font-weight: 800; line-height: 1; letter-spacing: -.03em;
    background: linear-gradient(160deg, var(--brand), #7FB0FF); -webkit-background-clip: text; background-clip: text; color: transparent;
    flex-shrink: 0;
}
.value-card h3 { font-size: 19px; margin-bottom: 6px; }
.value-sub { font-size: 13px; color: var(--accent-600); font-weight: 600; margin-bottom: 12px; }
.value-card p { font-size: 14.2px; color: var(--muted); line-height: 1.85; }
.more { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--brand); margin-top: 14px; }
.more .ico { width: 15px; height: 15px; }
.more:hover .ico { transform: translateX(3px); }

.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.pain-card {
    position: relative; padding: 34px 32px; border-radius: var(--radius-lg); overflow: hidden;
    background: linear-gradient(165deg, #FFFFFF, #F7FAFF); border: 1px solid var(--line);
    transition: all .26s var(--ease);
}
.pain-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: rgba(var(--brand-rgb), .24); }
.pain-num {
    position: absolute; right: 26px; top: 18px; font-size: 56px; font-weight: 800; color: #EEF3FB; line-height: 1;
    letter-spacing: -.04em;
}
.pain-card h3 { font-size: 20px; margin-bottom: 8px; position: relative; }
.pain-sub { font-size: 13.5px; color: var(--brand); font-weight: 600; margin-bottom: 12px; position: relative; }
.pain-card p { font-size: 14.2px; color: var(--muted); line-height: 1.85; position: relative; }

.adv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.adv-card {
    position: relative; padding: 30px 32px 26px; border-radius: var(--radius-lg);
    background: #fff; border: 1px solid var(--line); transition: all .26s var(--ease);
}
.adv-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.adv-idx {
    display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 11px;
    background: var(--brand-50); color: var(--brand); font-size: 13px; font-weight: 700; margin-bottom: 16px;
}
.adv-card h3 { font-size: 19px; margin-bottom: 10px; }
.adv-card p { font-size: 14.2px; color: var(--muted); line-height: 1.85; }

/* 选择套餐 */
.choose-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.choose-card {
    padding: 30px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line);
    transition: all .26s var(--ease);
}
.choose-card:hover { border-color: rgba(var(--brand-rgb), .26); box-shadow: var(--shadow); }
.choose-price {
    display: inline-block; padding: 4px 12px; border-radius: 8px; background: var(--accent-50);
    color: var(--accent-600); font-size: 13px; font-weight: 700; margin-bottom: 14px;
}
.choose-card h3 { font-size: 18.5px; line-height: 1.5; margin-bottom: 10px; }
.choose-card p { font-size: 14.2px; color: var(--muted); line-height: 1.85; }

/* 表格 */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 900px; }
.data-table th {
    background: #F8FAFD; color: var(--ink); font-weight: 600; font-size: 13.5px;
    padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap;
}
.data-table td { padding: 18px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: #FBFCFE; }
.data-table b { color: var(--ink); }
.price-strong { display: block; font-size: 16px; font-weight: 700; color: var(--brand); }
.price-gift { display: block; font-size: 12px; color: var(--muted-2); margin-top: 3px; }
.data-table .muted { color: var(--muted); font-size: 13px; }
.num-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.num-chips span {
    font-size: 12.5px; padding: 3px 8px; border-radius: 6px; background: var(--bg);
    border: 1px solid var(--line-2); color: var(--ink-2); font-variant-numeric: tabular-nums;
}
.table-note { margin-top: 16px; font-size: 13px; color: var(--muted); line-height: 1.8; }
.table-note code { background: var(--bg); padding: 1px 6px; border-radius: 5px; }
.section-lead { font-size: 15px; color: var(--muted); margin: -14px 0 26px; max-width: 820px; }

/* 超级靓号 */
.promo-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.promo-card {
    padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff;
    display: flex; flex-direction: column; gap: 18px;
}
.promo-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.promo-head h3 { font-size: 19px; }
.promo-head b { font-size: 22px; color: var(--accent-600); white-space: nowrap; letter-spacing: -.01em; }
.promo-list { display: grid; gap: 9px; }
.promo-list li { display: flex; gap: 8px; font-size: 14px; color: var(--ink-2); }
.promo-list .ico { width: 16px; height: 16px; color: var(--brand); flex-shrink: 0; margin-top: 3px; }

/* 号段 */
.seg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.seg-card { padding: 30px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.seg-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.seg-label { font-size: 12px; color: var(--muted-2); letter-spacing: .08em; }
.seg-card h3 { font-size: 27px; letter-spacing: .01em; margin-top: 4px; }
.seg-rate { font-size: 12.5px; color: var(--muted); text-align: right; }
.seg-rate b { display: block; font-size: 20px; color: var(--brand); }
.seg-carrier {
    display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--ink-2);
    background: var(--bg); padding: 6px 12px; border-radius: 8px; margin-bottom: 14px;
}
.seg-carrier .ico { width: 15px; height: 15px; color: var(--brand); }
.seg-card p { font-size: 14px; color: var(--muted); line-height: 1.8; margin-bottom: 18px; }
.seg-bar { height: 5px; border-radius: 99px; background: var(--line-2); overflow: hidden; margin-bottom: 20px; }
.seg-bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--brand), #6AA6FF); }

/* 号码规则 */
.rule-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.rule-card { padding: 28px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.rule-card h3 { font-size: 19px; margin-bottom: 16px; }
.rule-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.rule-tags span {
    padding: 4px 10px; border-radius: 7px; background: var(--brand-50); color: var(--brand);
    font-size: 12.5px; font-weight: 600; letter-spacing: .02em;
}

/* 承诺 */
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.promise-card {
    padding: 32px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line);
    transition: all .26s var(--ease);
}
.promise-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.promise-icon {
    width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 18px;
    background: linear-gradient(140deg, #E9FBF2, #D3F5E4); color: #0E9F6E;
}
.promise-icon .ico { width: 23px; height: 23px; }
.promise-card h3 { font-size: 18px; margin-bottom: 9px; }
.promise-card p { font-size: 14px; color: var(--muted); line-height: 1.85; }

/* FAQ 手风琴 */
.faq-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 30px; align-items: start; }
.accordion { display: grid; gap: 12px; }
.acc-item {
    background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.acc-item[open] { border-color: rgba(var(--brand-rgb), .3); box-shadow: var(--shadow-sm); }
.acc-item summary {
    display: flex; align-items: center; gap: 14px; padding: 20px 22px; cursor: pointer;
    font-size: 15.5px; font-weight: 600; color: var(--ink); list-style: none;
}
.acc-item summary::-webkit-details-marker { display: none; }
.acc-item summary .ico { width: 18px; height: 18px; margin-left: auto; color: var(--muted); transition: transform .25s var(--ease); flex-shrink: 0; }
.acc-item[open] summary .ico { transform: rotate(45deg); color: var(--brand); }
.acc-q { color: var(--brand); font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.acc-body { padding: 0 22px 22px 50px; font-size: 14.5px; color: var(--muted); line-height: 1.9; }
.accordion.compact .acc-item summary { padding: 14px 16px; font-size: 14px; }
.accordion.compact .acc-body { padding: 0 16px 16px; font-size: 13.5px; }

.faq-side {
    padding: 32px; border-radius: var(--radius-lg); background: radial-gradient(130% 130% at 85% 0%, #1B4DA8, #0B2547 65%, #071A31);
    color: rgba(255, 255, 255, .72);
}
.faq-side h3 { color: #fff; font-size: 19px; margin-bottom: 10px; }
.faq-side p { font-size: 14px; line-height: 1.85; margin-bottom: 22px; }
.faq-side-meta { display: flex; justify-content: space-between; align-items: center; padding: 13px 0; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 13.5px; }
.faq-side-meta b { color: #fff; font-weight: 600; }

/* 关于我们 */
.about-layout { display: grid; grid-template-columns: 1.55fr 1fr; gap: 40px; align-items: start; }
.about-copy .label {
    display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .1em; color: var(--brand); margin-bottom: 12px;
}
.about-copy h2 { font-size: clamp(24px, 2.4vw, 32px); margin-bottom: 20px; }
.contact-card {
    padding: 32px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line);
    box-shadow: var(--shadow-sm); position: sticky; top: 100px;
}
.contact-card h3 { font-size: 18px; margin-bottom: 20px; }
.contact-list { display: grid; gap: 18px; margin-bottom: 24px; }
.contact-list li { display: flex; gap: 13px; align-items: flex-start; }
.contact-list .ico { width: 19px; height: 19px; color: var(--brand); margin-top: 3px; flex-shrink: 0; }
.contact-list span { display: block; font-size: 12.5px; color: var(--muted-2); }
.contact-list b { font-size: 14.5px; color: var(--ink); line-height: 1.6; font-weight: 600; }

.stat-band { background: var(--navy); padding: 0; }
.stat-strip { display: grid; grid-template-columns: repeat(3, 1fr); }
.stat-item { padding: 40px 24px; text-align: center; border-right: 1px solid rgba(255, 255, 255, .08); }
.stat-item:last-child { border-right: 0; }
.stat-item b { display: block; font-size: clamp(26px, 3vw, 40px); font-weight: 800; color: #fff; letter-spacing: -.02em; }
.stat-item span { font-size: 13.5px; color: rgba(255, 255, 255, .55); }

/* 分栏内容 */
.split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.split-copy .label { display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .1em; color: var(--brand); margin-bottom: 12px; }
.split-copy h2 { font-size: clamp(24px, 2.4vw, 32px); margin-bottom: 16px; }
.split-copy > p { font-size: 15px; color: var(--muted); line-height: 1.9; margin-bottom: 22px; }
.check-list { display: grid; gap: 14px; margin-bottom: 28px; }
.check-list li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink-2); line-height: 1.8; }
.check-list .ico { width: 18px; height: 18px; color: #0E9F6E; flex-shrink: 0; margin-top: 4px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.stat-row { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; color: var(--ink-2); }
.stat-row:last-of-type { border-bottom: 0; }
.stat-row b { font-size: 22px; color: var(--brand); font-weight: 800; }
.stat-tip { margin-top: 18px; font-size: 12px; color: var(--muted-2); line-height: 1.7; }

/* 文章附加 */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line-2); }
.article-tags span { font-size: 12.5px; padding: 4px 11px; border-radius: 7px; background: var(--bg); color: var(--muted); }
.article-contact {
    margin-top: 28px; padding: 24px 26px; border-radius: 16px; display: flex; align-items: center;
    justify-content: space-between; gap: 20px; background: linear-gradient(120deg, #EEF4FF, #F7FAFF);
    border: 1px solid #DCE8FF;
}
.article-contact b { font-size: 16px; color: var(--ink); }
.article-contact p { font-size: 13.5px; color: var(--muted); margin-top: 4px; }

/* 侧栏 */
.side-links { display: flex; flex-wrap: wrap; gap: 8px; }
.side-links a { font-size: 13.5px; padding: 7px 14px; border-radius: 8px; background: var(--bg); color: var(--ink-2); }
.side-links a:hover { background: var(--brand-50); color: var(--brand); }
.related-list { display: grid; gap: 14px; }
.related-list a { display: flex; gap: 11px; align-items: flex-start; }
.related-list img { width: 62px; height: 46px; border-radius: 7px; object-fit: cover; flex-shrink: 0; }
.related-list span { font-size: 13.8px; color: var(--ink-2); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-list a:hover span { color: var(--brand); }
.list-count { text-align: center; margin-top: 18px; font-size: 13px; color: var(--muted-2); }
.empty-box { padding: 46px 24px; text-align: center; color: var(--muted); background: #fff; border: 1px dashed var(--line); border-radius: var(--radius); font-size: 14.5px; line-height: 1.9; }
.search-bar { display: flex; gap: 12px; }
.search-bar .input { height: 50px; }

/* 城市详情 */
.city-detail { display: grid; grid-template-columns: 1fr 330px; gap: 36px; align-items: start; }
.block-title { font-size: 22px; margin: 40px 0 20px; padding-left: 14px; border-left: 4px solid var(--brand); }
.city-tier { margin-bottom: 28px; }
.city-tier-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.city-tier-head h3 { font-size: 16.5px; }
.city-tier-head a { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; color: var(--brand); }
.city-tier-head .ico { width: 14px; height: 14px; }
.city-mini { display: flex; flex-wrap: wrap; gap: 8px; }
.city-mini a { font-size: 13px; padding: 5px 11px; border-radius: 7px; background: var(--bg); color: var(--ink-2); }
.city-mini a:hover { background: var(--brand-50); color: var(--brand); }

/* 404 */
.error-page { padding: 90px 0 110px; text-align: center; }
.error-code {
    font-size: clamp(80px, 14vw, 160px); font-weight: 800; line-height: 1; letter-spacing: -.06em;
    background: linear-gradient(160deg, #DCE8FF, #EEF4FF); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.error-page h1 { font-size: clamp(24px, 3vw, 34px); margin: 10px 0 14px; }
.error-page p { color: var(--muted); max-width: 520px; margin: 0 auto 28px; }
.error-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.error-links { margin-top: 40px; font-size: 13.5px; color: var(--muted); }
.error-links b { color: var(--ink); margin-right: 10px; }
.error-links a { margin: 0 8px; }
.error-news { max-width: 640px; margin: 46px auto 0; text-align: left; }
.error-news h2 { font-size: 16px; margin-bottom: 14px; }
.error-news li { padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }

/* 响应式补充 */
@media (max-width: 1024px) {
    .value-grid, .pain-grid, .adv-grid, .choose-grid, .promo-grid, .seg-grid, .rule-grid,
    .promise-grid, .split, .about-layout, .faq-layout, .city-detail { grid-template-columns: 1fr; }
    .stat-strip { grid-template-columns: 1fr; }
    .stat-item { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .08); padding: 26px; }
    .contact-card { position: static; }
    .article-contact { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   25. 多端自适应收口（移动优先兜底）
   ========================================================================== */

/* --- 全局防溢出 --- */
img, svg, video, canvas, iframe { max-width: 100%; }
img { height: auto; }
html, body { max-width: 100%; overflow-x: clip; }
* { min-width: 0; }

/* 长号码 / 长链接 / 英文单词不撑破容器 */
.post-body h2, .post-body p, .news-body h3, .news-body p, .article-card p,
.article-card li, .hero-desc, .lead-cta-copy p, td, .footer-cities {
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* --- 表格：窄屏卡片化（无需横向滚动） --- */
@media (max-width: 640px) {
    .table-wrap { overflow: visible; border: 0; background: transparent; border-radius: 0; }
    .data-table { min-width: 0; width: 100%; display: block; font-size: 14px; }
    .data-table thead { display: none; }
    .data-table tbody, .data-table tr, .data-table td { display: block; width: 100%; }

    .data-table tr {
        background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
        padding: 6px 16px; margin-bottom: 14px; box-shadow: 0 1px 2px rgba(16, 34, 64, .04);
    }
    .data-table tr:hover { background: #fff; }
    .data-table td {
        border: 0; padding: 9px 0; display: flex; align-items: flex-start;
        gap: 10px; border-bottom: 1px dashed var(--line-2); flex-wrap: wrap;
    }
    .data-table td:last-child { border-bottom: 0; }
    .data-table td::before {
        content: attr(data-label);
        flex: 0 0 74px; font-size: 12.5px; color: var(--muted-2); font-weight: 500;
        padding-top: 2px; line-height: 1.6;
    }
    .data-table td > * { flex: 1 1 0; min-width: 0; }
    /* 价格与赠品行：各占一行，避免被挤成两行断字 */
    .data-table td > .price-strong,
    .data-table td > .price-gift { flex: 1 0 calc(100% - 84px); }
    .data-table td[data-label] > .price-strong { display: block; white-space: nowrap; }
    .price-strong { font-size: 15.5px; }
    .price-gift { margin-top: 2px; }
    .num-chips span { font-size: 12px; }
}

/* --- 触控热区：粗指针设备统一放大可点区域 --- */
@media (pointer: coarse) {
    .main-nav > li > a { min-height: 46px; }
    .btn, .btn-line, button, .filter-bar a, .pagination a, .pagination span { min-height: 44px; }
    .btn, .btn-line { display: inline-flex; align-items: center; justify-content: center; }
    .nav-toggle { width: 44px; height: 44px; }
    .float-service a, .float-service button { width: 48px; height: 48px; }
    a, button { -webkit-tap-highlight-color: rgba(var(--brand-rgb), .12); }
    .footer-col a, .footer-cities a { display: inline-block; padding: 3px 0; }
}

/* --- 窄屏按钮点击热区 --- */
@media (max-width: 768px) {
    .btn, .btn-line { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
    .side-links a, .filter-bar a { min-height: 40px; display: inline-flex; align-items: center; }
}

/* --- 表单：iOS 聚焦不缩放（font-size 必须 >= 16px） --- */
@media (max-width: 768px) {
    input[type="text"], input[type="tel"], input[type="email"], input[type="search"],
    input[type="number"], input[type="password"], select, textarea {
        font-size: 16px !important;
    }
    .hero-card .lead-form .input { height: 50px; }
    .lead-form .btn { height: 50px; }
}

/* --- 手机端段落与卡片留白收紧 --- */
@media (max-width: 560px) {
    .container { width: calc(100% - 28px); }
    .section { padding: 44px 0; }
    .section-head h2, .hero h1 { letter-spacing: -.01em; }
    .page-hero { padding: 28px 0 30px; }
    .page-hero h1 { font-size: 25px; }
    .page-hero .lead { font-size: 14px; }
    .post-thumb { height: auto; border-radius: 10px; }
    .post-body h2 { font-size: 17px; }
    .post-foot { gap: 10px; font-size: 12px; }
    .lead-cta { padding: 24px 18px; }
    .footer-top { gap: 26px; padding-bottom: 30px; }
    .footer-tel b { font-size: 22px; }
    .float-service { right: 10px; bottom: 12px; }
}

/* --- 手机端：浮动按钮改为底部动作条（不遮挡内容、转化更直接） --- */
@media (max-width: 560px) {
    .float-service {
        left: 0; right: 0; bottom: 0; gap: 8px;
        display: grid; grid-template-columns: 1fr 1fr;
        padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
        background: rgba(255, 255, 255, .97);
        -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
        border-top: 1px solid var(--line);
        border-radius: 0;
        box-shadow: 0 -6px 24px rgba(16, 34, 64, .10);
    }
    .float-service a, .float-service button {
        width: auto; height: 46px; border-radius: 11px;
        display: inline-flex; flex-direction: row; gap: 7px;
    }
    .float-service button[data-scroll-top] { display: none; }
    .float-service .ico { width: 18px; height: 18px; }
    .float-service .tip {
        position: static; transform: none; opacity: 1; background: none; color: inherit;
        padding: 0; font-size: 14px; font-weight: 700; white-space: nowrap;
        transition: none; pointer-events: auto;
    }
    .float-service a:not(.primary) { border: 1px solid var(--line); }
    .site-footer { padding-bottom: 76px; }
}

/* --- 刘海屏安全区 --- */
@supports (padding: max(0px)) {
    .float-service {
        right: max(12px, env(safe-area-inset-right));
        bottom: max(14px, env(safe-area-inset-bottom));
    }
    .site-footer { padding-bottom: env(safe-area-inset-bottom); }
}

/* --- 横屏手机（高度不足） --- */
@media (max-height: 480px) and (orientation: landscape) {
    .hero { padding: 42px 0 56px; }
    .hero-card { position: static; }
    .float-service { display: none; }
}

/* --- 超大屏：内容不无限拉伸 --- */
@media (min-width: 1600px) {
    :root { --container: 1360px; }
    .hero h1 { font-size: 46px; }
}
@media (min-width: 1920px) {
    :root { --container: 1440px; }
}

/* --- 尊重系统减少动效偏好 --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
}

/* --- 断点校准：平板 / 小笔记本不要过早堆叠成单列 --- */
@media (min-width: 641px) and (max-width: 1024px) {
    /* 内容型双栏在平板堆叠 */
    .split, .about-layout, .faq-layout, .city-detail { grid-template-columns: 1fr; }
    .contact-card { position: static; }

    /* 卡片网格保持两列，避免单列过宽留白 */
    .value-grid, .pain-grid, .adv-grid, .choose-grid, .promo-grid { grid-template-columns: repeat(2, 1fr); }
    .seg-grid, .rule-grid, .promise-grid, .feature-grid, .why-grid, .pkg-grid, .steps { grid-template-columns: repeat(2, 1fr); }

    /* 数据条保持三列 */
    .stat-strip { grid-template-columns: repeat(3, 1fr); }
    .stat-item { border-bottom: 0; border-right: 1px solid rgba(255, 255, 255, .08); }
    .stat-item:nth-child(3n) { border-right: 0; }

    .case-grid { grid-template-columns: repeat(4, 1fr); }
    .city-grid { grid-template-columns: repeat(4, 1fr); }
    .quick-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 561px) and (max-width: 640px) {
    .value-grid, .pain-grid, .adv-grid, .choose-grid, .promo-grid { grid-template-columns: 1fr; }
    .seg-grid, .rule-grid, .promise-grid, .feature-grid, .why-grid, .pkg-grid, .steps { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 26. 功能介绍页：双分组（基础 / 增值）+ 锚点入口 ---------- */
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chip {
    display: inline-flex; align-items: center; gap: 7px; padding: 9px 16px; border-radius: 99px;
    background: #fff; border: 1px solid var(--line); color: var(--ink); font-size: 13.5px; font-weight: 600;
    box-shadow: 0 1px 2px rgba(16, 32, 60, .04); transition: all .24s var(--ease);
}
.chip:hover { border-color: rgba(var(--brand-rgb), .32); color: var(--brand); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.chip .ico { width: 16px; height: 16px; color: var(--brand); }

@media (min-width: 1025px) {
    .feature-grid.compact { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}
.feature-grid.compact .feature { padding: 20px; gap: 13px; align-items: flex-start; }
.feature-grid.compact .feature-icon { width: 40px; height: 40px; border-radius: 11px; }
.feature-grid.compact .feature-icon .ico { width: 20px; height: 20px; }
.feature-grid.compact .feature h3 { font-size: 15.5px; }
.feature-grid.compact .feature p { font-size: 13.2px; line-height: 1.72; }

/* ==========================================================================
   27. 配色方案（后台「系统设置 → 站点配色」切换，对应 <html data-skin="...">）
   ========================================================================== */
[data-skin="azure"] {
    --brand: #0B76C9; --brand-600: #085FA6; --brand-500: #2196E0; --brand-50: #EAF6FF;
    --brand-rgb: 11, 118, 201;
    --accent: #F08C00; --accent-600: #D97706; --accent-50: #FFF7E6;
    --navy: #0C3350; --navy-700: #0F3C5E; --navy-600: #134A70;
    --hero-1: #33A6DE; --hero-2: #1282B4; --hero-3: #0B5F86; --hero-glow: rgba(80, 205, 255, .52);
}
[data-skin="ocean"] {
    --brand: #1E5BD6; --brand-600: #1648AE; --brand-500: #2E7BF6; --brand-50: #EEF4FF;
    --brand-rgb: 30, 91, 214;
    --accent: #FF7A1A; --accent-600: #EA6002; --accent-50: #FFF3E8;
    --navy: #0F2A55; --navy-700: #12325F; --navy-600: #173E74;
    --hero-1: #2E6FE6; --hero-2: #1B4CA8; --hero-3: #123A7C; --hero-glow: rgba(74, 140, 255, .55);
}
[data-skin="jade"] {
    --brand: #0E8C7E; --brand-600: #0A7468; --brand-500: #17A593; --brand-50: #E8F8F4;
    --brand-rgb: 14, 140, 126;
    --accent: #F0A020; --accent-600: #D98A0B; --accent-50: #FFF6E5;
    --navy: #0B3A38; --navy-700: #0F4745; --navy-600: #135654;
    --hero-1: #17A08D; --hero-2: #0C726A; --hero-3: #08504D; --hero-glow: rgba(45, 212, 191, .42);
}
[data-skin="violet"] {
    --brand: #6A4BE0; --brand-600: #5435C4; --brand-500: #8468F0; --brand-50: #F1EDFE;
    --brand-rgb: 106, 75, 224;
    --accent: #FF8A3D; --accent-600: #E87326; --accent-50: #FFF1E7;
    --navy: #221942; --navy-700: #2B2052; --navy-600: #342763;
    --hero-1: #8460E8; --hero-2: #5B37B4; --hero-3: #3E2480; --hero-glow: rgba(160, 120, 255, .45);
}
[data-skin="rose"] {
    --brand: #C93A50; --brand-600: #A82A3F; --brand-500: #E15B70; --brand-50: #FDEEF1;
    --brand-rgb: 201, 58, 80;
    --accent: #F0A020; --accent-600: #D98A0B; --accent-50: #FFF6E5;
    --navy: #3D1622; --navy-700: #4A1B29; --navy-600: #582031;
    --hero-1: #D64760; --hero-2: #A62C44; --hero-3: #741B2E; --hero-glow: rgba(255, 120, 140, .42);
}
[data-skin="amber"] {
    --brand: #B5721A; --brand-600: #95590D; --brand-500: #D18B2C; --brand-50: #FDF4E6;
    --brand-rgb: 181, 114, 26;
    --accent: #D94F3D; --accent-600: #BE3A2A; --accent-50: #FDECE8;
    --navy: #3A2A18; --navy-700: #453320; --navy-600: #513C26;
    --hero-1: #C9852F; --hero-2: #9A5F1C; --hero-3: #6E4213; --hero-glow: rgba(255, 190, 90, .42);
}

/* ---------- 浅色 Banner：晨曦白 ---------- */
[data-skin="dawn"] {
    --brand: #1E5BD6; --brand-600: #1648AE; --brand-500: #2E7BF6; --brand-50: #EEF4FF;
    --brand-rgb: 30, 91, 214;
    --accent: #F26B21; --accent-600: #D9560E; --accent-50: #FFF3E8;
    --navy: #0F2A55; --navy-700: #12325F; --navy-600: #173E74;
    --hero-1: #F2F7FF; --hero-2: #E3EEFC; --hero-3: #D3E3F8; --hero-glow: rgba(120, 170, 255, .32);
}
[data-skin="dawn"] .hero { color: var(--ink); }
[data-skin="dawn"] .hero::before {
    background-image: linear-gradient(rgba(var(--brand-rgb), .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--brand-rgb), .07) 1px, transparent 1px);
}
[data-skin="dawn"] .hero h1 { color: var(--ink); }
[data-skin="dawn"] .hero-desc { color: var(--ink-2); }
[data-skin="dawn"] .eyebrow { background: #fff; border-color: var(--line); color: var(--brand); }
[data-skin="dawn"] .hero-stats { border-top-color: rgba(14, 27, 46, .1); }
[data-skin="dawn"] .hero-stats b { color: var(--ink); }
[data-skin="dawn"] .hero-stats span { color: var(--muted); }
[data-skin="dawn"] .hero-card {
    background: #fff; border-color: var(--line);
    box-shadow: 0 40px 70px -44px rgba(14, 27, 46, .4);
}
[data-skin="dawn"] .hero-card-head b { color: var(--ink); }
[data-skin="dawn"] .hero-card-head span { color: var(--muted-2); }
[data-skin="dawn"] .hero-card .lead-form .input,
[data-skin="dawn"] .hc-input { background: var(--bg); border-color: var(--line); color: var(--ink); }
[data-skin="dawn"] .hero-card .lead-form .input::placeholder { color: var(--muted-2); }
[data-skin="dawn"] .hero-card .lead-form .input:focus {
    border-color: var(--brand); box-shadow: 0 0 0 4px rgba(var(--brand-rgb), .14);
}
[data-skin="dawn"] .hero-card .lead-form .textarea { background: var(--bg); border-color: var(--line); color: var(--ink); }
[data-skin="dawn"] .hc-input .ico { color: var(--muted-2); }
[data-skin="dawn"] .hc-input input { color: var(--ink); }
[data-skin="dawn"] .hc-input input::placeholder { color: var(--muted-2); }
[data-skin="dawn"] .hero-card-tip { color: var(--muted-2); }
[data-skin="dawn"] .hero-card-tip b { color: var(--accent-600); }
[data-skin="dawn"] .hero-float { border: 1px solid var(--line); box-shadow: 0 20px 40px -26px rgba(14, 27, 46, .3); }

/* ---------- 28. 视觉细节统一 ---------- */
/* 栏目页 Hero 与首页 Banner 呼应（品牌色淡染 + 细网格） */
.page-hero {
    background:
        radial-gradient(90% 120% at 88% 0%, rgba(var(--brand-rgb), .1), transparent 62%),
        linear-gradient(180deg, #F8FAFE 0%, #fff 100%);
}
.section.dark { background: linear-gradient(160deg, var(--navy-700), var(--navy)); }
.stat-band { background: linear-gradient(120deg, var(--navy-700), var(--navy)); }
.pkg.is-featured { border-color: transparent; }

/* 功能卡片统一描边过渡 */
.feature { transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease); }

/* 页脚：去掉 logo 后改用文字品牌名，与其余列标题对齐 */
.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-wordmark {
    font-size: 21px; font-weight: 800; color: #fff; letter-spacing: .02em; line-height: 1.35;
    padding-bottom: 12px; position: relative;
}
.footer-wordmark::after {
    content: ""; position: absolute; left: 0; bottom: 0; width: 34px; height: 3px;
    border-radius: 2px; background: var(--accent);
}
.footer-brand p { max-width: 380px; }
@media (max-width: 900px) {
    .footer-brand { gap: 14px; }
}

/* ================================================================
   9. 号码展示 / 预占此号 / 选号中心
   ================================================================ */

/* ---------- 9.1 号码卡：纵向「号码+运营商 → 预占按钮」 ---------- */
.number-item {
    display: flex; flex-direction: column; align-items: stretch; gap: 11px;
    padding: 16px 18px 14px;
}
.number-main { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; min-width: 0; }
.number-main b {
    font-size: 21px; font-weight: 800; letter-spacing: .05em; color: var(--ink);
    font-variant-numeric: tabular-nums; line-height: 1.2;
}
.number-grade {
    align-self: flex-start; margin-top: -4px;
    font-size: 11.5px; padding: 2px 8px; border-radius: 5px;
    background: var(--brand-50); color: var(--brand); font-weight: 600;
}

/* ---------- 9.2 运营商标记（只显示联通 / 移动 / 电信） ---------- */
.op-tag {
    display: inline-flex; align-items: center; gap: 5px; flex-shrink: 0;
    font-size: 12px; color: var(--muted-2); white-space: nowrap;
}
.op-tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted-2); display: block; }
.op-tag[data-op="联通"] i { background: #E60012; }
.op-tag[data-op="移动"] i { background: #0085D0; }
.op-tag[data-op="电信"] i { background: #0FA958; }

/* ---------- 9.3 预占此号按钮 ---------- */
.btn-book {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    width: 100%; height: 36px; padding: 0 14px;
    border: 1px solid rgba(var(--brand-rgb), .22); border-radius: 9px;
    background: var(--brand-50); color: var(--brand);
    font-size: 13px; font-weight: 600; font-family: inherit; line-height: 1;
    cursor: pointer; transition: all .2s var(--ease);
}
.btn-book .ico { width: 15px; height: 15px; }
.btn-book:hover { background: var(--brand); border-color: var(--brand); color: #fff; transform: translateY(-1px); }
.btn-book:active { transform: translateY(0); }
.btn-book:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

/* 热销页超级卡内的按钮：撑满虚线区 */
.super-foot .btn-book { height: 34px; }

/* ---------- 9.4 预占弹窗（PC） ---------- */
.book-modal { position: fixed; inset: 0; z-index: 400; display: none; }
.book-modal.is-open { display: block; }
.book-mask {
    position: absolute; inset: 0; background: rgba(9, 18, 34, .55);
    -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
    animation: bookFade .22s ease both;
}
.book-dialog {
    position: relative; z-index: 1;
    width: min(92vw, 388px); margin: 0 auto;
    top: 50%; transform: translateY(-50%);
    background: #fff; border-radius: 20px;
    padding: 34px 26px 24px; text-align: center;
    box-shadow: 0 30px 80px -22px rgba(9, 18, 34, .5);
    animation: bookPop .26s cubic-bezier(.2, .9, .3, 1.08) both;
}
.book-x {
    position: absolute; top: 12px; right: 12px;
    width: 30px; height: 30px; border-radius: 8px; border: 0;
    background: transparent; color: var(--muted-2); cursor: pointer;
    display: grid; place-items: center; transition: all .18s;
}
.book-x .ico { width: 16px; height: 16px; }
.book-x:hover { background: #F1F5FB; color: var(--ink); }
.book-ring {
    width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 50%;
    display: grid; place-items: center; color: #fff;
    background: linear-gradient(135deg, var(--brand), var(--brand-500));
    box-shadow: 0 14px 30px -12px rgba(var(--brand-rgb), .85);
}
.book-ring .ico { width: 26px; height: 26px; }
.book-dialog h3 {
    font-size: 18.5px; font-weight: 800; color: var(--ink); line-height: 1.5;
    letter-spacing: .01em; margin-bottom: 8px;
}
.book-sub { font-size: 13px; color: var(--muted); line-height: 1.75; margin-bottom: 14px; }
.book-target {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: 10px; margin-bottom: 18px;
    background: #F6F9FE; border: 1px dashed rgba(var(--brand-rgb), .28);
    font-size: 12.5px; color: var(--muted);
}
.book-target b {
    font-size: 17px; font-weight: 800; color: var(--brand);
    letter-spacing: .06em; font-variant-numeric: tabular-nums;
}
.book-book-call, .book-dialog .btn-book-call {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    width: 100%; height: 46px; border-radius: 11px;
    font-size: 15px; font-weight: 700;
}
.book-dialog .btn-book-call .ico { width: 18px; height: 18px; }
.book-hint { font-size: 11.5px; color: var(--muted-2); margin-top: 12px; line-height: 1.6; }
body.is-locked { overflow: hidden; }

@keyframes bookFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes bookPop {
    from { opacity: 0; transform: translateY(-50%) scale(.94); }
    to   { opacity: 1; transform: translateY(-50%) scale(1); }
}

/* ---------- 9.5 选号中心页 ---------- */
.picker-bar {
    background: #fff; border: 1px solid var(--line); border-radius: 16px;
    padding: 18px 20px; margin-bottom: 26px;
    box-shadow: 0 14px 40px -30px rgba(16, 34, 64, .5);
}
.picker-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.picker-row + .picker-row { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); }
.picker-label { font-size: 12.5px; color: var(--muted-2); flex-shrink: 0; min-width: 42px; }
.picker-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.picker-chip {
    padding: 6px 14px; border-radius: 8px; font-size: 13px;
    color: var(--muted); background: #F6F9FE; border: 1px solid transparent;
    transition: all .18s var(--ease);
}
.picker-chip:hover { color: var(--brand); border-color: rgba(var(--brand-rgb), .3); }
.picker-chip.is-on { background: var(--ink); color: #fff; border-color: var(--ink); }
.picker-search { display: flex; gap: 8px; flex: 1; min-width: 220px; max-width: 560px; }
.picker-search input {
    flex: 1; height: 40px; padding: 0 14px; border-radius: 9px;
    border: 1px solid var(--line); background: #fff; font-size: 14px;
    font-family: inherit; color: var(--ink); outline: none;
    transition: border-color .18s, box-shadow .18s;
}
.picker-search input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(var(--brand-rgb), .12); }
.picker-search button { height: 40px; padding: 0 20px; }
.picker-count { font-size: 13px; color: var(--muted-2); margin-bottom: 16px; }
.picker-count b { color: var(--brand); font-weight: 700; }
.number-grid-lg { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.empty-box {
    padding: 60px 20px; text-align: center; color: var(--muted-2);
    background: #fff; border: 1px dashed var(--line); border-radius: 16px; font-size: 14px;
}

@media (max-width: 1024px) {
    .number-grid-lg { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .number-grid-lg { grid-template-columns: repeat(2, 1fr); }
    .picker-bar { padding: 14px 16px; border-radius: 14px; }
    .picker-chip { padding: 5px 12px; font-size: 12.5px; }
    .number-main b { font-size: 18px; }
    .book-dialog { padding: 30px 20px 22px; }
}
@media (max-width: 420px) {
    .number-grid-lg { grid-template-columns: 1fr; gap: 10px; }
    .number-item { padding: 13px 15px 12px; gap: 9px; }
    .number-main b { font-size: 19px; letter-spacing: .04em; }
    .btn-book { height: 34px; }
}

.picker-help {
    margin-top: 30px; padding: 24px 26px; border-radius: 16px;
    background: linear-gradient(120deg, #F4F8FF 0%, #FFFFFF 70%);
    border: 1px solid var(--line);
    display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.picker-help h3 { font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.picker-help p { font-size: 13.5px; color: var(--muted); line-height: 1.75; max-width: 640px; }
.picker-help .btn { flex-shrink: 0; }
@media (max-width: 768px) {
    .picker-help { padding: 20px; }
    .picker-help .btn { width: 100%; }
}

/* 正文自动内链：颜色区分但不喧宾夺主 */
.prose a.auto-link { color: var(--brand); font-weight: 500; text-decoration-color: color-mix(in srgb, var(--brand) 35%, transparent); }
.prose a.auto-link:hover { text-decoration-color: var(--brand); }