@charset "utf-8";
/* ==========================================================================
   至诚未来 · 官网前台样式  (Titan 深蓝金 风格 / 亮色 / 大字号)
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
    --navy: #0a1c3d;
    --navy2: #143066;
    --navy3: #1d4390;
    --gold: #c9a227;
    --gold-d: #a9861b;
    --gold-l: #f7ecc8;
    --ink: #101828;
    --muted: #5c6579;
    --line: #e3e8f0;
    --bg: #f4f6fa;
    --surface: #ffffff;
    --surface-muted: #f7f8fb;
    --radius: 12px;
    --radius-lg: 18px;
    --shadow: 0 2px 14px rgba(10, 28, 61, .06);
    --shadow-lg: 0 18px 44px rgba(10, 28, 61, .14);
    --wrap: 1240px;
    --fs-base: 18px;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }

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

body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
    font-size: var(--fs-base);
    line-height: 1.8;
    color: var(--ink);
    background: var(--bg);
}

img { max-width: 100%; height: auto; border: 0; display: block; }
a { color: var(--navy2); text-decoration: none; transition: color .18s; }
a:hover { color: var(--gold-d); }

h1, h2, h3, h4, h5 { margin: 0 0 .6em; line-height: 1.35; color: var(--navy); font-weight: 700; }
h1 { font-size: 46px; letter-spacing: -.5px; }
h2 { font-size: 34px; }
h3 { font-size: 26px; }
h4 { font-size: 22px; }
h5 { font-size: 19px; }
p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.4em; }

code {
    font-family: Consolas, Monaco, "Courier New", monospace;
    font-size: .92em;
    background: var(--gold-l);
    color: #6b5308;
    padding: 2px 7px;
    border-radius: 5px;
    white-space: nowrap;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 26px; }
.sec { padding: 74px 0; }
.sec-alt { background: var(--surface); }
.sec-tight { padding: 52px 0; }

.sec-head { max-width: 820px; margin: 0 auto 46px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }
.sec-head h2 { font-size: 36px; margin-bottom: 14px; }
.sec-head p { color: var(--muted); font-size: 19px; margin: 0; }

.eyebrow {
    display: inline-block;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--gold-d);
    background: var(--gold-l);
    border-radius: 999px;
    padding: 5px 16px;
    margin-bottom: 16px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 18px;
    font-weight: 700;
    padding: 15px 34px;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all .18s;
    line-height: 1.2;
    white-space: nowrap;
}
.btn-gold { background: var(--gold); color: #241c00; }
.btn-gold:hover { background: var(--gold-d); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(201,162,39,.34); }
.btn-navy { background: var(--navy2); color: #fff; }
.btn-navy:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }
.btn-line { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-line:hover { background: rgba(255,255,255,.14); color: #fff; border-color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--navy2); background: var(--surface); }
.btn-ghost:hover { border-color: var(--navy2); background: var(--surface); color: var(--navy); }
.btn-sm { font-size: 16px; padding: 11px 24px; }
.btn-xs { font-size: 15px; padding: 8px 18px; }
.btn-lg { font-size: 20px; padding: 17px 40px; }

/* ---------- 顶部导航 ---------- */
.nav {
    position: sticky; top: 0; z-index: 90;
    background: var(--navy);
    box-shadow: 0 2px 12px rgba(10,28,61,.22);
}
.nav-in { display: flex; align-items: center; gap: 30px; height: 84px; }
.brand { display: flex; align-items: center; gap: 13px; color: #fff; flex: 0 0 auto; }
.brand:hover { color: #fff; }
.brand-logo { width: 46px; height: 46px; flex: 0 0 46px; display: block; }
.brand-txt b { display: block; font-size: 22px; letter-spacing: 1px; line-height: 1.25; }
.brand-txt span { display: block; font-size: 13px; color: rgba(255,255,255,.62); letter-spacing: 2px; }
.brand-txt span i { font-style: normal; color: #ff4d4f; font-weight: 700; }

.nav-menu { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-menu a {
    color: rgba(255,255,255,.86);
    font-size: 17.5px;
    font-weight: 600;
    padding: 11px 17px;
    border-radius: 8px;
    transition: all .18s;
}
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav-menu a.on { color: var(--gold); }
.nav-menu a.on::after {
    content: ""; display: block; height: 3px; width: 22px; margin: 5px auto -8px;
    background: var(--gold); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.nav-tel { color: #fff; font-weight: 700; font-size: 18px; white-space: nowrap; }
.nav-tel small { display: block; font-size: 12px; color: rgba(255,255,255,.58); font-weight: 400; letter-spacing: 1px; }

/* 导航栏右侧广告位（图片与链接都在后台「站点设置」里维护）
   建议上传 600×80；容器按可用宽度自动收缩，图始终等比完整显示 */
.nav-ad { display: flex; align-items: center; flex: 0 1 auto; min-width: 0; max-width: 600px; }
.nav-ad a { display: block; line-height: 0; }
.nav-ad img { display: block; width: auto; height: auto; max-width: 100%; max-height: 80px; border-radius: 6px; }

.nav-toggle {
    display: none; margin-left: auto;
    width: 46px; height: 42px; border-radius: 8px;
    background: rgba(255,255,255,.12); border: 0; cursor: pointer;
    flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle i { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; }

/* ---------- 首页 Hero ---------- */
.hero {
    background: linear-gradient(150deg, var(--navy) 0%, var(--navy2) 58%, var(--navy3) 100%);
    color: #fff; padding: 84px 0 78px; position: relative; overflow: hidden;
}
.hero::after {
    content: ""; position: absolute; right: -180px; top: -140px;
    width: 620px; height: 620px; border-radius: 50%;
    background: radial-gradient(circle, rgba(201,162,39,.2), transparent 68%);
}
.hero-in { display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
.hero h1 { color: #fff; font-size: 52px; line-height: 1.22; margin-bottom: 22px; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero-lead { font-size: 20px; color: rgba(255,255,255,.82); max-width: 620px; margin-bottom: 34px; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 15px; margin-bottom: 30px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
    font-size: 15px; font-weight: 600; color: rgba(255,255,255,.9);
    border: 1px solid rgba(255,255,255,.26); border-radius: 999px; padding: 6px 16px;
}

.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.metric {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: var(--radius);
    padding: 22px 22px 20px;
    backdrop-filter: blur(2px);
}
.metric b { display: block; font-size: 38px; line-height: 1.1; color: #fff; letter-spacing: -.5px; }
.metric b i { font-style: normal; font-size: 19px; color: var(--gold); margin-left: 3px; }
.metric span { display: block; font-size: 15.5px; color: rgba(255,255,255,.72); margin-top: 6px; }
.metric.hl { background: linear-gradient(150deg, var(--gold), #ddb949); border-color: transparent; }
.metric.hl b, .metric.hl b i { color: var(--navy); }
.metric.hl span { color: rgba(10,28,61,.78); }

/* ---------- 首页产品卡 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.prod-card {
    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
    overflow: hidden; display: flex; flex-direction: column;
    transition: all .2s; box-shadow: var(--shadow);
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: #cfd8e6; }
.prod-thumb { position: relative; background: var(--surface-muted); aspect-ratio: 4 / 3; overflow: hidden; }
.prod-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.prod-card:hover .prod-thumb img { transform: scale(1.045); }
.prod-badge {
    position: absolute; left: 14px; top: 14px; z-index: 2;
    background: var(--gold); color: #241c00; font-size: 14px; font-weight: 700;
    padding: 6px 14px; border-radius: 999px; box-shadow: 0 4px 12px rgba(0,0,0,.14);
}
.prod-card-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.prod-card-body h3 { font-size: 25px; margin-bottom: 10px; }
.prod-card-sub { color: var(--gold-d); font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.prod-card-body p { color: var(--muted); font-size: 16.5px; margin-bottom: 18px; flex: 1; }
.prod-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 18px; border-top: 1px solid var(--line); }
.prod-card-foot .ver { font-size: 14.5px; color: var(--muted); }
.prod-more { font-weight: 700; font-size: 17px; color: var(--navy2); display: inline-flex; align-items: center; gap: 6px; }
.prod-card:hover .prod-more { color: var(--gold-d); }

/* ---------- 特色横排（4列带分隔） ---------- */
.feat-row { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.feat-cell { padding: 34px 30px; border-left: 1px solid var(--line); }
.feat-cell:first-child { border-left: 0; }
.feat-num { font-size: 16px; font-weight: 800; color: var(--gold); letter-spacing: 2px; margin-bottom: 12px; }
.feat-cell h4 { font-size: 21px; margin-bottom: 10px; }
.feat-cell p { color: var(--muted); font-size: 16.5px; margin: 0; }

/* ---------- 通用卡片 / 网格 ---------- */
.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.card h4 { margin-bottom: 10px; }
.card p:last-child { margin-bottom: 0; }
.card .ico {
    width: 54px; height: 54px; border-radius: 12px; background: var(--gold-l);
    display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 16px;
}

/* 数据条 */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 26px; }
.stat-box { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: var(--radius); padding: 22px 24px; }
.stat-box b { display: block; font-size: 36px; color: var(--navy); line-height: 1.15; }
.stat-box span { display: block; font-size: 16px; color: var(--muted); margin-top: 4px; }

/* 概览小卡 */
.ov-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 0 0 8px; }
.ov-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.ov-card h5 { font-size: 19px; margin-bottom: 8px; color: var(--navy2); }
.ov-card p { margin: 0; color: var(--muted); font-size: 16.5px; }

/* 要点列表 */
ul.pts { list-style: none; padding: 0; margin: 0; }
ul.pts li { position: relative; padding: 0 0 16px 34px; font-size: 17.5px; color: #2b3445; }
ul.pts li::before {
    content: ""; position: absolute; left: 4px; top: 12px;
    width: 10px; height: 10px; border-radius: 3px;
    background: var(--gold); transform: rotate(45deg);
}
ul.pts li:last-child { padding-bottom: 0; }

/* 步骤 */
ol.steps { list-style: none; padding: 0; margin: 0; counter-reset: st; }
ol.steps li { position: relative; padding: 0 0 18px 52px; font-size: 17.5px; counter-increment: st; }
ol.steps li::before {
    content: counter(st, decimal-leading-zero);
    position: absolute; left: 0; top: 2px;
    width: 34px; height: 34px; border-radius: 9px;
    background: var(--navy2); color: #fff; font-size: 15px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
ol.steps li:last-child { padding-bottom: 0; }

/* 表格 */
table.tb { width: 100%; border-collapse: collapse; margin: 0 0 8px; font-size: 17px; overflow: hidden; border-radius: var(--radius); }
table.tb th { background: var(--navy); color: #fff; text-align: left; padding: 15px 20px; font-size: 16.5px; font-weight: 600; }
table.tb td { padding: 14px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.tb tbody tr:nth-child(even) td { background: var(--surface-muted); }
table.tb tbody tr:last-child td { border-bottom: 0; }
table.tb tbody tr:hover td { background: #eef2f9; }

/* 富文本内容区 */
.rich { font-size: 17.8px; color: #2b3445; }
.rich > p:last-child, .rich > ul:last-child, .rich > ol:last-child,
.rich > table:last-child, .rich > .ov-grid:last-child, .rich > .stat-row:last-child { margin-bottom: 0; }
.rich h3 { font-size: 24px; margin-top: 8px; margin-bottom: 14px; }
.rich h4 { font-size: 20px; margin-bottom: 12px; }
.rich .stat-row { margin-bottom: 26px; }
.rich code { white-space: normal; }
.rich .ov-grid { margin-bottom: 22px; }
.rich + .shot-grid, .rich + .scene-grid { margin-top: 26px; }

/* ---------- 产品详情页 ---------- */
.p-hero { background: linear-gradient(150deg, var(--navy) 0%, var(--navy2) 60%, var(--navy3) 100%); color: #fff; padding: 62px 0 66px; }
.crumb { font-size: 15.5px; color: rgba(255,255,255,.62); margin-bottom: 22px; }
.crumb a { color: rgba(255,255,255,.72); }
.crumb a:hover { color: var(--gold); }
.crumb span { color: rgba(255,255,255,.4); margin: 0 8px; }
.p-hero-in { display: grid; grid-template-columns: 1.12fr .88fr; gap: 54px; align-items: center; }
.p-hero h1 { color: #fff; font-size: 46px; margin-bottom: 14px; }
.p-hero .p-sub { font-size: 20px; color: var(--gold); font-weight: 600; margin-bottom: 18px; }
/* 摘要可能是从别处粘贴的富文本，直接放在深色 hero 上会看不清颜色，改为白底卡片原样呈现 */
.p-hero .p-sum { font-size: 18.5px; color: var(--ink); background: #fff; border-radius: var(--radius);
    padding: 20px 22px; margin-bottom: 28px; box-shadow: 0 12px 32px rgba(0,0,0,.2); max-height: 470px; overflow-y: auto; }
.p-hero .p-sum > p { margin: 0 0 10px; }
.p-hero .p-sum > *:first-child { margin-top: 0; }
.p-hero .p-sum > *:last-child { margin-bottom: 0; }
.p-hero .p-sum ul, .p-hero .p-sum ol { margin: 0 0 10px; padding-left: 24px; }
.p-hero .p-sum li { margin-bottom: 4px; }
.p-hero .p-sum a { color: #1a4fb4; text-decoration: underline; }
.p-hero .p-sum code { background: rgba(10,28,61,.06); color: var(--navy); padding: 1px 6px; border-radius: 4px; }
.p-hero .p-sum img { max-width: 100%; height: auto; border-radius: 8px; }
.p-hero .p-sum blockquote { margin: 0 0 12px; padding-left: 14px; border-left: 3px solid var(--gold); }
.p-hero-btns { display: flex; flex-wrap: wrap; gap: 14px; }
.p-shot { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(255,255,255,.2); box-shadow: 0 22px 50px rgba(0,0,0,.32); background: #fff; }
.p-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.p-chips span { font-size: 14.5px; font-weight: 600; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; padding: 5px 15px; color: rgba(255,255,255,.9); }

.p-anchor { position: sticky; top: 84px; z-index: 60; background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: 0 4px 14px rgba(10,28,61,.05); overflow-x: auto; }
.p-anchor ul { display: flex; gap: 4px; list-style: none; margin: 0 auto; padding: 0 26px; max-width: var(--wrap); }
.p-anchor a { display: block; padding: 18px 16px; font-size: 16.5px; font-weight: 600; color: var(--muted); border-bottom: 3px solid transparent; white-space: nowrap; }
.p-anchor a:hover { color: var(--navy2); }
.p-anchor a.on { color: var(--navy2); border-bottom-color: var(--gold); }

.sec-block { scroll-margin-top: 150px; }
.sec-block + .sec-block { border-top: 1px solid var(--line); }
.sec-block-in { display: grid; grid-template-columns: 340px 1fr; gap: 50px; align-items: start; }
.sec-block-in.full { grid-template-columns: 1fr; }
.sec-side h3 { font-size: 27px; margin-bottom: 12px; }
.sec-side p { color: var(--muted); font-size: 17px; }
.sec-side .eyebrow { font-size: 14px; }

.feat-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feat-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: all .18s; }
.feat-item:hover { border-color: var(--gold); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.feat-item .ico { font-size: 28px; margin-bottom: 12px; }
.feat-item h4 { font-size: 19.5px; margin-bottom: 8px; }
.feat-item p { color: var(--muted); font-size: 16.5px; margin: 0; }

/* 截图 */
.shot-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.shot-grid.single { grid-template-columns: 1fr; }
.shot { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: all .18s; box-shadow: var(--shadow); }
.shot:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.shot img { width: 100%; }
.shot figcaption { padding: 14px 20px; font-size: 16px; color: var(--muted); border-top: 1px solid var(--line); background: var(--surface-muted); }

/* 场景画廊 */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scene { position: relative; border-radius: var(--radius); overflow: hidden; cursor: zoom-in; background: var(--navy); aspect-ratio: 4 / 3; }
.scene img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.scene:hover img { transform: scale(1.06); }
.scene-cap {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 34px 18px 16px;
    background: linear-gradient(to top, rgba(10,28,61,.92), rgba(10,28,61,0));
    color: #fff; font-size: 15.5px; line-height: 1.55;
}

/* 规格表 */
.spec-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 240px 1fr; border-bottom: 1px solid var(--line); }
.spec-row:last-child { border-bottom: 0; }
.spec-row:nth-child(even) { background: var(--surface-muted); }
.spec-row dt { padding: 15px 24px; font-weight: 700; color: var(--navy2); font-size: 17px; margin: 0; }
.spec-row dd { padding: 15px 24px; margin: 0; color: #2b3445; font-size: 17px; }

/* FAQ 手风琴 */
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.faq-q {
    display: flex; align-items: center; gap: 14px; cursor: pointer;
    padding: 20px 24px; font-size: 18.5px; font-weight: 700; color: var(--navy);
    background: none; border: 0; width: 100%; text-align: left; font-family: inherit;
}
.faq-q .q-mark { flex: 0 0 30px; height: 30px; border-radius: 8px; background: var(--gold-l); color: var(--gold-d); font-size: 15px; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.faq-q .arrow { margin-left: auto; color: var(--gold-d); font-size: 22px; transition: transform .2s; flex: 0 0 auto; }
.faq-item.open .faq-q .arrow { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-a p { padding: 0 24px 22px 68px; margin: 0; color: var(--muted); font-size: 17.5px; }

/* 视频 */
.video-box { max-width: 420px; margin: 0 auto; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); background: #000; }
.video-box video { width: 100%; display: block; }

/* 底部 CTA 带 */
.cta-band { background: var(--surface-muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 56px 0; }
.cta-band-in { display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap; }
.cta-band h2 { font-size: 30px; margin-bottom: 8px; }
.cta-band p { margin: 0; color: var(--muted); font-size: 18px; }

/* 下载/资料条 */
.doc-bar { display: flex; align-items: center; gap: 22px; background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--gold); border-radius: var(--radius); padding: 24px 28px; flex-wrap: wrap; }
.doc-bar .ico { font-size: 34px; }
.doc-bar h4 { margin: 0 0 4px; font-size: 20px; }
.doc-bar p { margin: 0; color: var(--muted); font-size: 16px; }
.doc-bar .btn { margin-left: auto; }

/* ---------- 关于 / 联系 ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 54px; align-items: start; }
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 17.5px; }
.info-list li:last-child { border-bottom: 0; }
.info-list .k { flex: 0 0 110px; color: var(--muted); font-size: 16.5px; }
.info-list .v { font-weight: 600; color: var(--ink); }
.info-list .v a { font-weight: 700; }

.contact-card { background: var(--navy); color: #fff; border-radius: var(--radius-lg); padding: 40px; }
.contact-card h3 { color: #fff; font-size: 26px; }
.contact-card p { color: rgba(255,255,255,.76); }
.contact-big { font-size: 36px; font-weight: 800; color: var(--gold); letter-spacing: 1px; margin: 10px 0 6px; }
.contact-card .btn { width: 100%; justify-content: center; margin-top: 22px; }

.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 16.5px; font-weight: 600; margin-bottom: 8px; color: var(--navy2); }
.form-row input, .form-row textarea {
    width: 100%; font-family: inherit; font-size: 17px; padding: 14px 16px;
    border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink);
}
.form-row textarea { min-height: 150px; resize: vertical; }
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--navy2); box-shadow: 0 0 0 3px rgba(20,48,102,.1); }

.notice { border-radius: var(--radius); padding: 16px 22px; font-size: 17px; margin-bottom: 24px; }
.notice-ok { background: #e9f7ee; border: 1px solid #b7e2c6; color: #1c6b3a; }
.notice-err { background: #fdecec; border: 1px solid #f5c2c2; color: #a52222; }

/* ---------- 页脚 ---------- */
.foot { background: var(--navy); color: rgba(255,255,255,.72); padding: 62px 0 0; font-size: 16.5px; }
.foot-in { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 46px; }
.foot h4 { color: #fff; font-size: 19px; margin-bottom: 18px; }
.foot a { color: rgba(255,255,255,.72); }
.foot a:hover { color: var(--gold); }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot ul li { margin-bottom: 11px; }
.foot .brand { margin-bottom: 18px; }
.foot .foot-desc { color: rgba(255,255,255,.6); font-size: 16px; }
.foot .foot-tel { color: var(--gold); font-size: 24px; font-weight: 800; margin-top: 6px; }
.foot-bot { border-top: 1px solid rgba(255,255,255,.13); padding: 22px 0; font-size: 15px; color: rgba(255,255,255,.5); display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

/* ---------- Lightbox ---------- */
.lb { position: fixed; inset: 0; z-index: 300; background: rgba(6,14,30,.93); display: none; align-items: center; justify-content: center; padding: 40px; }
.lb.on { display: flex; }
.lb img { max-width: 94vw; max-height: 84vh; border-radius: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.6); }
.lb-cap { position: absolute; bottom: 26px; left: 0; right: 0; text-align: center; color: rgba(255,255,255,.82); font-size: 16.5px; padding: 0 40px; }
.lb-close { position: absolute; right: 26px; top: 22px; width: 50px; height: 50px; border-radius: 50%; border: 0; background: rgba(255,255,255,.15); color: #fff; font-size: 26px; cursor: pointer; }
.lb-close:hover { background: rgba(255,255,255,.3); }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 54px; height: 54px; border-radius: 50%; border: 0; background: rgba(255,255,255,.15); color: #fff; font-size: 27px; cursor: pointer; }
.lb-nav:hover { background: rgba(255,255,255,.3); }
.lb-prev { left: 26px; }
.lb-next { right: 26px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
    :root { --fs-base: 17px; }
    .hero h1 { font-size: 42px; }
    .hero-in, .p-hero-in { grid-template-columns: 1fr; gap: 40px; }
    .prod-grid, .feat-list, .scene-grid, .g3, .g4 { grid-template-columns: repeat(2, 1fr); }
    .feat-row { grid-template-columns: repeat(2, 1fr); }
    .feat-cell:nth-child(3) { border-left: 0; }
    .sec-block-in { grid-template-columns: 1fr; gap: 26px; }
    .about-grid { grid-template-columns: 1fr; gap: 36px; }
    .foot-in { grid-template-columns: repeat(2, 1fr); gap: 34px; }
    .nav-tel { display: none; }
}

@media (max-width: 820px) {
    .sec { padding: 52px 0; }
    h1 { font-size: 34px; }
    h2 { font-size: 28px; }
    .sec-head h2 { font-size: 28px; }
    .hero h1 { font-size: 34px; }
    .p-hero h1 { font-size: 32px; }
    .hero-lead { font-size: 18px; }

    .nav-in { height: 72px; }
    .nav-ad { display: none; }
    .nav-menu {
        display: none; position: absolute; left: 0; right: 0; top: 72px;
        flex-direction: column; align-items: stretch; gap: 0;
        background: var(--navy2); padding: 10px 18px 18px; box-shadow: 0 16px 30px rgba(0,0,0,.3);
    }
    .nav-menu.open { display: flex; }
    .nav-menu a { padding: 14px 12px; border-radius: 8px; }
    .nav-menu a.on::after { display: none; }
    .nav-toggle { display: flex; }
    .nav-cta .btn { display: none; }

    .prod-grid, .feat-list, .scene-grid, .g2, .g3, .g4, .shot-grid, .ov-grid, .stat-row, .feat-row { grid-template-columns: 1fr; }
    .feat-cell { border-left: 0; border-top: 1px solid var(--line); }
    .feat-cell:first-child { border-top: 0; }
    .metric b { font-size: 30px; }
    .p-anchor ul { padding: 0 14px; }
    .p-anchor a { padding: 14px 11px; font-size: 15.5px; }
    .spec-row { grid-template-columns: 1fr; }
    .spec-row dd { padding-top: 0; }
    .contact-big { font-size: 29px; }
    .lb-nav { display: none; }
    .table-scroll { overflow-x: auto; }
    table.tb { min-width: 520px; }
}

/* ==========================================================================
   首页 · 极简产品一览（100×100 图标 + 一句说明 + 按钮小框）
   ========================================================================== */
.homelist { padding: 40px 0 72px; }

.pcard {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    align-items: center;
    gap: 22px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 18px 22px;
    margin-bottom: 16px;
}
.pcard:last-child { margin-bottom: 0; }

.pcard-icon {
    display: block;
    width: 100px;
    height: 100px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-muted);
    overflow: hidden;
}
.pcard-icon img { width: 100%; height: 100%; object-fit: cover; }

.pcard-txt { min-width: 0; }
.pcard-txt h2 { font-size: 20px; font-weight: 400; margin-bottom: 4px; }
.pcard-txt h2 a { color: var(--navy); text-decoration: underline; }
.pcard-txt h2 a:hover { color: var(--gold-d); }
/* 简介是富文本，原样呈现：字色 / 底色 / 换行都由内容里的内联样式决定 */
.pcard-sum { font-size: 14.5px; line-height: 1.6; color: var(--ink); margin: 0; overflow-wrap: anywhere; }
.pcard-sum > *:first-child { margin-top: 0 !important; }
.pcard-sum > *:last-child { margin-bottom: 0 !important; }
.pcard-sum p { margin: 0; }   /* 回车就是下一行，段间不留空档，与编辑器一致 */
.pcard-sum ul, .pcard-sum ol { margin: 0 0 6px; padding-left: 22px; }
.pcard-sum li { margin-bottom: 2px; }
.pcard-sum a { color: var(--navy2); text-decoration: underline; }
.pcard-sum code { background: rgba(10,28,61,.06); color: var(--navy); padding: 1px 5px; border-radius: 4px; }
.pcard-sum img { max-width: 100%; height: auto; border-radius: 6px; }
.pcard-sum blockquote { margin: 0 0 6px; padding-left: 12px; border-left: 3px solid var(--gold); }

.pcard-box {
    display: flex;
    flex-direction: column;
    gap: 7px;
    width: 122px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-muted);
}
.pcard-box .btn { justify-content: center; font-size: 13.5px; padding: 5px 10px; border-width: 1px; }

/* 首页极简页脚：只有最下方的横条 */
.foot-simple { padding: 0; }
.foot-simple .foot-bot { border-top: 0; }

@media (max-width: 820px) {
    .homelist { padding: 26px 0 52px; }
    .pcard { grid-template-columns: 100px 1fr; gap: 18px; padding: 18px; }
    .pcard-box { grid-column: 1 / -1; flex-direction: row; width: auto; padding: 12px; }
    .pcard-box .btn { flex: 1 1 auto; }
}

/* ==========================================================================
   产品页 · 原版介绍文档嵌入（导航栏下面整块展示）
   ========================================================================== */
.docview { background: #f2f4f7; }

.doc-frame {
    display: block;
    width: 100%;
    height: 1400px;
    min-height: calc(100vh - 84px);
    border: 0;
}

@media (max-width: 820px) {
    .doc-frame { min-height: calc(100vh - 72px); }
}