/* ==========================================================================
   云启智创官网 · 前台样式
   配色：深海军蓝 #0B1626 + 品牌橙 #E8451B + 暖金 #F7A21B
   ========================================================================== */

:root {
    --ink: #0B1626;
    --ink-2: #132438;
    --slate: #4A5A6E;
    --muted: #6B7A8C;
    --line: #E9EDF3;
    --bg: #F6F8FB;
    --brand: #E8451B;
    --brand-2: #F26A22;
    --gold: #F7A21B;
    --soft: #FFF2EC;
    --radius: 14px;
    --shadow: 0 24px 48px rgba(11, 22, 38, .10);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #1B2735;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -.01em; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.ico { width: 20px; height: 20px; flex: none; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 26px; border-radius: 10px; font-size: 15px; font-weight: 600;
    text-decoration: none; border: 1px solid transparent; cursor: pointer;
    transition: .25s ease; line-height: 1.2; font-family: inherit;
}
.btn-primary {
    background: linear-gradient(100deg, var(--brand), var(--brand-2));
    color: #fff; box-shadow: 0 12px 26px rgba(232, 69, 27, .26);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(232, 69, 27, .34); }
.btn-ghost { color: #fff; border-color: rgba(255, 255, 255, .26); background: rgba(255, 255, 255, .05); }
.btn-ghost:hover { background: rgba(255, 255, 255, .13); border-color: rgba(255, 255, 255, .5); }
.btn-outline { color: var(--ink); border-color: #DCE3ED; background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; border-radius: 8px; }
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 60;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(233, 237, 243, .9);
    transition: box-shadow .3s ease, background .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(11, 22, 38, .08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 76px; }
.brand { display: flex; align-items: center; flex: none; }
.brand-logo { height: 42px; width: auto; display: block; }
.brand-logo-sm { height: 32px; width: auto; }

.nav-desktop { display: flex; align-items: center; gap: 2px; }
.nav-link {
    position: relative; padding: 9px 14px; font-size: 15px; color: #38485A;
    text-decoration: none; border-radius: 8px; white-space: nowrap; transition: .2s;
}
.nav-link:hover { color: var(--brand); background: #FFF6F2; }
.nav-link.is-active { color: var(--brand); font-weight: 600; }
.nav-link.is-active::after {
    content: ""; position: absolute; left: 14px; right: 14px; bottom: 1px; height: 2px;
    border-radius: 2px; background: linear-gradient(90deg, var(--brand), var(--gold));
}

.header-actions { display: flex; align-items: center; gap: 18px; flex: none; }
.header-phone { display: flex; flex-direction: column; text-decoration: none; line-height: 1.25; }
.header-phone .phone-label { font-size: 11px; color: #98A5B5; letter-spacing: .06em; }
.header-phone strong { font-size: 15px; color: var(--ink); font-variant-numeric: tabular-nums; }
.header-phone:hover strong { color: var(--brand); }

.nav-toggle {
    display: none; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 9px;
    background: #fff; cursor: pointer; padding: 11px 9px;
}
.nav-toggle span { display: block; height: 2px; border-radius: 2px; background: var(--ink); margin-bottom: 4px; }
.nav-toggle span:last-child { margin-bottom: 0; }

/* ---------- 移动端菜单 ---------- */
.mobile-nav {
    position: fixed; inset: 0; z-index: 80; background: rgba(11, 22, 38, .55);
    opacity: 0; pointer-events: none; transition: opacity .3s;
}
.mobile-nav.is-open { opacity: 1; pointer-events: auto; }
.mobile-nav-panel {
    position: absolute; right: 0; top: 0; bottom: 0; width: min(86vw, 340px);
    background: #fff; padding: 20px 22px 28px; display: flex; flex-direction: column;
    transform: translateX(100%); transition: transform .35s cubic-bezier(.4, 0, .2, 1);
    overflow-y: auto;
}
.mobile-nav.is-open .mobile-nav-panel { transform: none; }
.mobile-nav-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.mobile-nav-close { border: 0; background: none; font-size: 26px; line-height: 1; color: #7A8899; cursor: pointer; }
.mobile-nav-links { display: flex; flex-direction: column; padding: 10px 0; }
.mobile-nav-links a {
    display: flex; justify-content: space-between; align-items: center; text-decoration: none;
    color: #24354A; font-size: 16px; padding: 14px 4px; border-bottom: 1px solid #F1F4F8;
}
.mobile-nav-links a span { color: #B3BECA; font-size: 18px; }
.mobile-nav-links a.is-active { color: var(--brand); font-weight: 600; }
.mobile-nav-foot { margin-top: auto; padding-top: 20px; }
.mobile-nav-foot p { color: var(--muted); font-size: 13px; margin: 0 0 12px; }

/* ---------- 首屏 ---------- */
.hero { position: relative; background: #0A1524; color: #fff; overflow: hidden; padding: 92px 0 96px; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
    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: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse at 28% 22%, #000 15%, transparent 72%);
    mask-image: radial-gradient(ellipse at 28% 22%, #000 15%, transparent 72%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(20px); }
.hero-glow-1 { width: 620px; height: 620px; left: -200px; top: -240px; background: radial-gradient(circle, rgba(232, 69, 27, .34), transparent 66%); }
.hero-glow-2 { width: 700px; height: 700px; right: -180px; bottom: -300px; background: radial-gradient(circle, rgba(247, 162, 27, .18), transparent 66%); }

.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-eyebrow {
    display: flex; align-items: center; gap: 10px; margin: 0;
    font-size: 12.5px; letter-spacing: .14em; color: #FFB488; font-weight: 600;
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(232, 69, 27, .2); }
.hero-title { font-size: clamp(38px, 4.6vw, 60px); line-height: 1.14; margin: 20px 0 22px; font-weight: 800; letter-spacing: -.02em; }
.hero-title em {
    font-style: normal;
    background: linear-gradient(100deg, #FF8046, var(--gold));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { max-width: 520px; color: rgba(255, 255, 255, .72); font-size: 16.5px; line-height: 1.95; margin: 0 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
    margin-top: 54px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero-stat-num { display: block; font-size: 28px; font-weight: 700; line-height: 1.2; }
.hero-stat-num i { font-style: normal; font-size: 13px; color: #FFB488; margin-left: 3px; }
.hero-stat-label { display: block; margin-top: 6px; font-size: 12px; color: rgba(255, 255, 255, .55); line-height: 1.6; }

.hero-visual { position: relative; }
.hero-slider {
    position: relative; aspect-ratio: 4 / 3.4; border-radius: 22px; overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .14);
    box-shadow: 0 40px 80px rgba(0, 0, 0, .45);
    background: #0F1E32;
}
.hero-slide { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .9s ease; }
.hero-slide.is-active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-slide::after {
    content: ""; position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(180deg, rgba(10, 21, 36, .05) 30%, rgba(10, 21, 36, .88));
}
.hero-slide figcaption { position: absolute; left: 22px; right: 22px; bottom: 20px; z-index: 2; display: flex; flex-direction: column; }
.hero-slide figcaption strong { font-size: 16px; }
.hero-slide figcaption span { font-size: 12.5px; color: rgba(255, 255, 255, .7); }
.hero-dots { position: absolute; right: 20px; bottom: 22px; display: flex; gap: 6px; z-index: 3; }
.hero-dot { width: 8px; height: 8px; border-radius: 999px; border: 0; background: rgba(255, 255, 255, .45); cursor: pointer; padding: 0; transition: .25s; }
.hero-dot.is-active { width: 20px; background: var(--gold); }

.hero-float {
    position: absolute; z-index: 4; display: flex; flex-direction: column; gap: 2px;
    background: rgba(255, 255, 255, .96); color: var(--ink);
    padding: 12px 16px; border-radius: 12px; box-shadow: 0 18px 40px rgba(0, 0, 0, .3);
}
.hero-float strong { font-size: 15px; }
.hero-float span { font-size: 11.5px; color: #65758A; }
.hero-float-a { left: -26px; top: 34px; }
.hero-float-b { right: -20px; bottom: 76px; }

/* ---------- 通用区块 ---------- */
.section { padding: 92px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.eyebrow { margin: 0 0 12px; font-size: 12.5px; font-weight: 600; letter-spacing: .16em; color: var(--brand); }
.section-title { margin: 0; font-size: clamp(26px, 2.9vw, 36px); line-height: 1.32; letter-spacing: -.015em; color: var(--ink); }
.section-sub { max-width: 400px; margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.head-link { color: var(--ink); font-size: 14.5px; font-weight: 600; text-decoration: none; white-space: nowrap; }
.head-link:hover { color: var(--brand); }
.arrow { display: inline-block; transition: transform .25s; }
a:hover .arrow { transform: translateX(4px); }

/* ---------- 主营业务 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    position: relative; display: flex; flex-direction: column; overflow: hidden;
    padding: 30px 28px; background: #fff; border: 1px solid var(--line); border-radius: 16px;
    text-decoration: none; color: inherit; transition: .28s ease;
}
.service-card::before {
    content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
    background: linear-gradient(90deg, var(--brand), var(--gold)); transition: width .35s ease;
}
.service-card:hover { transform: translateY(-6px); border-color: transparent; box-shadow: var(--shadow); }
.service-card:hover::before { width: 100%; }
.service-icon {
    display: grid; place-items: center; width: 54px; height: 54px; margin-bottom: 20px;
    border-radius: 12px; background: var(--soft); color: var(--brand);
}
.service-icon .ico { width: 26px; height: 26px; }
.service-card h3 { margin: 0 0 10px; font-size: 19px; color: var(--ink); }
.service-card p { flex: 1; margin: 0 0 22px; color: var(--muted); font-size: 14.5px; line-height: 1.78; }
.card-link { color: var(--brand); font-size: 13.5px; font-weight: 600; }

/* ---------- 为什么选择 ---------- */
.section-why { background: var(--bg); }
.why-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 64px; align-items: center; }
.why-media { position: relative; }
.why-media img { width: 100%; display: block; border-radius: 18px; box-shadow: 0 30px 60px rgba(11, 22, 38, .16); }
.why-badge {
    position: absolute; left: -20px; bottom: -24px; display: flex; flex-direction: column;
    padding: 18px 24px; border-radius: 14px; background: var(--ink); color: #fff;
    box-shadow: 0 20px 40px rgba(11, 22, 38, .28);
}
.why-badge strong { font-size: 26px; line-height: 1.1; color: var(--gold); }
.why-badge span { font-size: 12px; color: rgba(255, 255, 255, .6); }
.why-lead { margin: 14px 0 0; color: var(--muted); font-size: 15px; max-width: 520px; }
.why-list { list-style: none; margin: 34px 0 0; padding: 0; display: grid; gap: 24px; }
.why-list li { display: flex; gap: 18px; }
.why-num {
    flex: none; display: grid; place-items: center; width: 36px; height: 36px;
    border-radius: 9px; background: var(--soft); color: var(--brand);
    font-size: 13px; font-weight: 700;
}
.why-list h3 { margin: 0 0 6px; font-size: 17px; color: var(--ink); }
.why-list p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 26px; }
.case-card { display: block; text-decoration: none; color: inherit; }
.case-cover {
    position: relative; aspect-ratio: 4 / 3; margin-bottom: 16px;
    border-radius: 14px; overflow: hidden; background: var(--ink);
}
.case-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.case-cover::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10, 21, 36, .18), rgba(10, 21, 36, 0) 45%);
}
.case-card:hover .case-cover img { transform: scale(1.05); }
.case-cover.is-fallback {
    display: grid; place-items: center; align-content: center; gap: 10px;
    background: radial-gradient(circle at 30% 15%, #1B3B5E, var(--ink) 72%);
}
.case-cover.is-fallback .ico { width: 44px; height: 44px; color: var(--gold); }
.case-cover-text { font-size: 12.5px; letter-spacing: .12em; color: rgba(255, 255, 255, .6); }
.case-tag {
    position: absolute; left: 14px; top: 14px; z-index: 2;
    padding: 5px 11px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
    color: var(--ink); background: rgba(255, 255, 255, .94);
}
.case-card h3 { margin: 0 0 6px; font-size: 18px; color: var(--ink); }
.case-card p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.7; }

/* ---------- 品牌资质 ---------- */
.section-brands { background: var(--bg); }
.brands-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.brands-lead { color: var(--muted); font-size: 15px; margin: 14px 0 0; max-width: 480px; }
.brand-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 30px; }
.brand-chip {
    padding: 7px 14px; border: 1px solid #DFE6EF; border-radius: 999px;
    background: #fff; font-size: 13.5px; color: #38485A;
}
.auth-card {
    display: flex; flex-direction: column; gap: 3px; padding: 16px 18px; margin-bottom: 12px;
    background: #fff; border: 1px solid var(--line); border-radius: 12px;
}
.auth-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.auth-head strong { font-size: 15px; color: var(--ink); }
.auth-type { padding: 3px 9px; border-radius: 6px; background: var(--soft); color: var(--brand); font-size: 11px; font-weight: 600; }
.auth-range, .auth-no { margin: 0; font-size: 12.5px; color: var(--muted); }
.auth-no { color: #9AA7B6; }
.certs-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.certs-strip img {
    width: 100%; display: block; border: 1px solid var(--line); border-radius: 8px;
    background: #fff; transition: .3s;
}
.certs-strip img:hover { transform: translateY(-4px); box-shadow: 0 16px 30px rgba(11, 22, 38, .12); }

/* ---------- 服务网络 ---------- */
.network-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.network-card { padding: 26px 24px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.network-city { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; color: var(--brand); margin-bottom: 8px; }
.network-card h3 { margin: 0 0 10px; font-size: 17px; color: var(--ink); }
.network-address { margin: 0 0 6px; font-size: 13px; color: var(--muted); line-height: 1.65; }
.network-note { margin: 0; font-size: 12px; color: #9AA7B6; line-height: 1.6; }
.network-phone { margin: 10px 0 0; font-size: 14px; font-weight: 600; color: var(--ink); }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    display: flex; gap: 18px; padding: 26px 24px; background: #fff;
    border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: inherit;
    transition: .28s;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.news-date { flex: none; min-width: 62px; padding-right: 18px; border-right: 1px solid #EFF3F7; text-align: center; }
.news-date strong { display: block; font-size: 26px; line-height: 1.1; color: var(--ink); }
.news-date span { font-size: 11.5px; color: #9AA7B6; }
.news-cat { font-size: 11.5px; color: var(--brand); font-weight: 600; }
.news-body h3 { margin: 6px 0 8px; font-size: 16px; line-height: 1.5; }
.news-body p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------- CTA ---------- */
.cta-band { position: relative; padding: 68px 0; background: var(--ink); color: #fff; overflow: hidden; }
.cta-band::before {
    content: ""; position: absolute; inset: 0;
    background: url("../img/cta-band.jpg") center / cover no-repeat;
    opacity: .18;
}
.cta-band::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(11, 22, 38, .96), rgba(11, 22, 38, .62) 55%, rgba(232, 69, 27, .34));
}
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-inner h2 { margin: 0 0 12px; font-size: clamp(22px, 2.6vw, 30px); line-height: 1.35; }
.cta-inner p { margin: 0; color: rgba(255, 255, 255, .66); font-size: 14.5px; max-width: 620px; }
.cta-actions { display: flex; align-items: center; gap: 26px; flex: none; }
.cta-phone { display: flex; flex-direction: column; text-decoration: none; color: #fff; }
.cta-phone span { font-size: 11.5px; color: rgba(255, 255, 255, .55); }
.cta-phone strong { font-size: 22px; letter-spacing: .02em; }

/* ---------- 页脚 ---------- */
.site-footer { background: #08111D; color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.5fr .8fr .8fr 1fr; gap: 48px; padding: 64px 24px 52px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-logo-mark {
    display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), var(--gold)); font-size: 19px; font-weight: 700;
}
.footer-logo-text { font-size: 19px; font-weight: 700; letter-spacing: .04em; }
.footer-slogan { margin: 0 0 12px; font-size: 14px; color: var(--gold); letter-spacing: .04em; }
.footer-desc { margin: 0 0 20px; font-size: 13px; line-height: 1.85; color: rgba(255, 255, 255, .52); max-width: 340px; }
.footer-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-tags span {
    padding: 4px 10px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 6px;
    font-size: 11px; color: rgba(255, 255, 255, .6);
}
.footer-col h4 { margin: 0 0 18px; font-size: 14px; color: #fff; letter-spacing: .04em; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { font-size: 13px; color: rgba(255, 255, 255, .55); line-height: 2.05; }
.footer-col li a { color: rgba(255, 255, 255, .55); text-decoration: none; }
.footer-col li a:hover { color: var(--gold); }
.footer-link { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--gold); text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer-bottom p { margin: 0; font-size: 12.5px; color: rgba(255, 255, 255, .43); }
.footer-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-meta a { color: rgba(255, 255, 255, .5); text-decoration: none; }
.footer-meta a:hover { color: #fff; }

/* ---------- 内页公共 ---------- */
.page-hero { position: relative; padding: 74px 0 56px; background: var(--ink); color: #fff; overflow: hidden; }
.page-hero::before {
    content: ""; position: absolute; width: 620px; height: 620px; right: -160px; top: -300px;
    background: radial-gradient(circle, rgba(232, 69, 27, .3), transparent 62%);
}
.page-hero::after {
    content: ""; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 56px 56px;
    -webkit-mask-image: radial-gradient(ellipse at 70% 0%, #000 20%, transparent 70%);
    mask-image: radial-gradient(ellipse at 70% 0%, #000 20%, transparent 70%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin: 0 0 12px; font-size: clamp(28px, 3.4vw, 42px); line-height: 1.28; }
.page-hero p { margin: 0; max-width: 640px; color: rgba(255, 255, 255, .68); font-size: 15px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; font-size: 12.5px; color: rgba(255, 255, 255, .42); }
.breadcrumb a { color: rgba(255, 255, 255, .72); text-decoration: none; }
.breadcrumb a:hover { color: var(--gold); }

.page-body { padding: 76px 0 96px; }

/* ---------- 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; margin-bottom: 78px; }
.about-text p { color: var(--slate); font-size: 15.5px; line-height: 2; margin: 0 0 18px; }
.about-text p strong { color: var(--ink); }
.about-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 28px; }
.about-fact { padding: 18px 20px; background: var(--bg); border-radius: 12px; }
.about-fact span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.about-fact strong { font-size: 16px; color: var(--ink); }
.about-media { position: relative; }
.about-media img { width: 100%; display: block; border-radius: 18px; box-shadow: 0 30px 60px rgba(11, 22, 38, .16); }
.about-media .media-caption {
    position: absolute; left: 18px; bottom: 18px; padding: 8px 14px; border-radius: 8px;
    background: rgba(11, 22, 38, .72); color: #fff; font-size: 12px; backdrop-filter: blur(6px);
}

.block-head { margin-bottom: 40px; }
.block-head h2 { margin: 0 0 10px; font-size: 30px; color: var(--ink); }
.block-head p { margin: 0; color: var(--muted); font-size: 14.5px; }

.timeline { position: relative; margin: 0; padding: 0 0 0 28px; list-style: none; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--brand), #E9EDF3); }
.timeline li { position: relative; padding: 0 0 30px 0; }
.timeline li::before {
    content: ""; position: absolute; left: -28px; top: 6px; width: 12px; height: 12px;
    border-radius: 50%; background: #fff; border: 2px solid var(--brand);
}
.timeline-year { font-size: 13px; font-weight: 700; color: var(--brand); letter-spacing: .04em; }
.timeline h3 { margin: 4px 0 6px; font-size: 17px; color: var(--ink); }
.timeline p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cert-item { display: block; text-decoration: none; }
.cert-item img { width: 100%; display: block; border: 1px solid var(--line); border-radius: 10px; background: #fff; transition: .3s; }
.cert-item:hover img { transform: translateY(-4px); box-shadow: var(--shadow); }
.cert-item span { display: block; margin-top: 10px; font-size: 12.5px; color: var(--muted); text-align: center; }

.team-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.team-strip figure { margin: 0; }
.team-strip img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 12px; display: block; }
.team-strip figcaption { margin-top: 10px; font-size: 12.5px; color: var(--muted); }

/* ---------- 业务详情 ---------- */
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 56px; align-items: start; }
.article-body { color: var(--slate); font-size: 15.5px; line-height: 2; }
.article-body h2 { margin: 38px 0 14px; font-size: 23px; color: var(--ink); }
.article-body h3 { margin: 30px 0 12px; font-size: 18px; color: var(--ink); }
.article-body p { margin: 0 0 16px; }
.article-body ul, .article-body ol { margin: 0 0 20px; padding-left: 22px; }
.article-body li { margin-bottom: 8px; }
.article-body img { max-width: 100%; border-radius: 12px; display: block; margin: 20px 0; }
.article-body strong { color: var(--ink); }

.side-card { position: sticky; top: 100px; padding: 26px 24px; background: var(--bg); border-radius: 14px; }
.side-card h3 { margin: 0 0 16px; font-size: 16px; color: var(--ink); }
.side-card ul { list-style: none; margin: 0 0 20px; padding: 0; }
.side-card li { padding: 10px 0; border-bottom: 1px dashed #E2E8F0; }
.side-card li:last-child { border-bottom: 0; }
.side-card li a { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #43546A; text-decoration: none; }
.side-card li a:hover { color: var(--brand); }
.side-card li a .ico { width: 18px; height: 18px; color: var(--brand); }
.side-contact { padding-top: 4px; }
.side-contact p { margin: 0 0 12px; font-size: 13px; color: var(--muted); }

/* ---------- 案例详情 ---------- */
.case-hero-img { margin: 0 0 36px; border-radius: 16px; overflow: hidden; background: var(--ink); }
.case-hero-img img { width: 100%; display: block; }
.case-meta { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-bottom: 30px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.case-meta span { font-size: 13px; color: var(--muted); }
.case-meta strong { color: var(--ink); font-weight: 600; }

/* ---------- 案例列表 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filter-chip {
    padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
    font-size: 13.5px; color: #43546A; text-decoration: none; transition: .2s;
}
.filter-chip:hover { border-color: var(--brand); color: var(--brand); }
.filter-chip.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 品牌页 ---------- */
.brand-group + .brand-group { margin-top: 64px; }
.brand-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.brand-card { padding: 22px 22px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.brand-card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.brand-card-head strong { font-size: 16px; color: var(--ink); }
.brand-card p { margin: 0 0 5px; font-size: 12.5px; color: var(--muted); }
.brand-card .brand-note { color: #98A5B6; }

/* ---------- 新闻列表 ---------- */
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-row {
    display: grid; grid-template-columns: 96px minmax(0, 1fr) 90px; gap: 24px; align-items: center;
    padding: 26px 4px; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit;
}
.news-row:hover h3 { color: var(--brand); }
.news-row-date { text-align: center; }
.news-row-date strong { display: block; font-size: 22px; color: var(--ink); line-height: 1.2; }
.news-row-date span { font-size: 11.5px; color: #9AA7B6; }
.news-row-main h3 { margin: 0 0 6px; font-size: 17px; line-height: 1.5; transition: color .2s; }
.news-row-main p { margin: 0; font-size: 13.5px; color: var(--muted); }
.news-row-more { text-align: right; font-size: 12.5px; color: var(--brand); }

.side-panel { padding: 24px; background: var(--bg); border-radius: 14px; }
.side-panel h3 { margin: 0 0 14px; font-size: 15px; color: var(--ink); }
.hot-list { list-style: none; margin: 0; padding: 0; }
.hot-list li { padding: 9px 0; border-bottom: 1px dashed #E2E8F0; }
.hot-list li:last-child { border-bottom: 0; }
.hot-list a { font-size: 13.5px; color: #43546A; text-decoration: none; line-height: 1.6; }
.hot-list a:hover { color: var(--brand); }

/* ---------- 文章页 ---------- */
.article-head { max-width: 820px; margin: 0 auto 34px; text-align: center; }
.article-head h1 { margin: 0 0 14px; font-size: clamp(24px, 3vw, 34px); line-height: 1.4; color: var(--ink); }
.article-meta { display: flex; justify-content: center; gap: 18px; font-size: 12.5px; color: #9AA7B6; }
.article-content { max-width: 820px; margin: 0 auto; }
.article-cover { max-width: 960px; margin: 0 auto 34px; border-radius: 14px; overflow: hidden; }
.article-cover img { width: 100%; display: block; }
.article-nav {
    max-width: 820px; margin: 48px auto 0; padding-top: 24px; border-top: 1px solid var(--line);
    display: flex; flex-direction: column; gap: 10px; font-size: 13.5px;
}
.article-nav a { color: #43546A; text-decoration: none; }
.article-nav a:hover { color: var(--brand); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-list { display: grid; gap: 18px; }
.contact-item { padding: 22px 24px; border: 1px solid var(--line); border-radius: 12px; }
.contact-item .contact-city { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; color: var(--brand); margin-bottom: 6px; }
.contact-item h3 { margin: 0 0 8px; font-size: 17px; color: var(--ink); }
.contact-item p { margin: 0 0 4px; font-size: 13.5px; color: var(--muted); }
.contact-item .contact-phone { margin-top: 8px; font-weight: 600; color: var(--ink); }

.form-card { padding: 32px 30px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 20px 50px rgba(11, 22, 38, .07); }
.form-card h2 { margin: 0 0 8px; font-size: 22px; color: var(--ink); }
.form-card .form-hint { margin: 0 0 24px; font-size: 13px; color: var(--muted); }
.form-row { margin-bottom: 16px; }
.form-row.form-col-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; margin-bottom: 7px; font-size: 13px; color: #43546A; font-weight: 600; }
.field label .req { color: var(--brand); }
.field input, .field select, .field textarea {
    width: 100%; padding: 12px 14px; border: 1px solid #DFE6EF; border-radius: 9px;
    font-size: 14px; font-family: inherit; color: #1B2735; background: #FBFCFE; transition: .2s;
}
.field textarea { min-height: 116px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 3px rgba(232, 69, 27, .12);
}
.form-note { margin: 4px 0 18px; font-size: 12px; color: #9AA7B6; }
.alert { padding: 12px 16px; border-radius: 9px; font-size: 13.5px; margin-bottom: 18px; }
.alert-success { background: #EFFBF3; color: #18794E; border: 1px solid #C9EFD8; }
.alert-error { background: #FFF3F0; color: #B7351B; border: 1px solid #FFD9CF; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* ---------- 分页 ---------- */
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 48px; }
.pager a, .pager span {
    min-width: 40px; padding: 9px 13px; text-align: center; border-radius: 8px;
    border: 1px solid var(--line); font-size: 13.5px; color: #43546A; text-decoration: none;
}
.pager a:hover { border-color: var(--brand); color: var(--brand); }
.pager .is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.pager .is-disabled { color: #C3CCD8; }

/* ---------- 空状态 / 404 ---------- */
.empty { padding: 60px 0; text-align: center; color: var(--muted); }
.page-404 { padding: 120px 0; text-align: center; }
.page-404 .code { font-size: 88px; font-weight: 800; line-height: 1; color: var(--ink); letter-spacing: -.03em; }
.page-404 .code em { font-style: normal; color: var(--brand); }
.page-404 p { color: var(--muted); margin: 18px 0 30px; }

/* ---------- 滚动动效 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
    .nav-desktop { display: none; }
    .nav-toggle { display: block; }
    .header-btn { display: none; }
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .hero-visual { max-width: 620px; }
    .hero-float-a { left: 12px; top: -18px; }
    .hero-float-b { right: 8px; bottom: 18px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 22px 18px; }
    .service-grid, .case-grid, .news-grid, .network-grid, .cert-grid, .brand-card-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid, .brands-grid, .about-intro, .about-split, .contact-grid, .detail-grid { grid-template-columns: 1fr; gap: 44px; }
    .side-card { position: static; }
    .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 720px) {
    .container { padding: 0 18px; }
    .header-inner { height: 66px; }
    .brand-logo { height: 34px; }
    .hero { padding: 64px 0 72px; }
    .hero-title { font-size: 38px; }
    .hero-lead { font-size: 15px; }
    .hero-stats { margin-top: 38px; }
    .hero-stat-num { font-size: 22px; }
    .section { padding: 64px 0; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 32px; }
    .service-grid, .case-grid, .news-grid, .network-grid, .cert-grid, .brand-card-grid, .team-strip, .about-facts { grid-template-columns: 1fr; }
    .case-grid { gap: 28px; }
    .news-card { padding: 22px 18px; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .cta-actions { flex-direction: column; align-items: flex-start; gap: 18px; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; padding: 48px 18px 40px; }
    .footer-bottom-inner { flex-direction: column; gap: 8px; }
    .page-hero { padding: 54px 0 44px; }
    .page-body { padding: 56px 0 72px; }
    .form-row.form-col-2 { grid-template-columns: 1fr; }
    .news-row { grid-template-columns: 1fr; gap: 10px; }
    .news-row-more { text-align: left; }
    .why-badge { left: 14px; bottom: -18px; }
}

/* ---------- 补充布局 ---------- */
.news-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; align-items: start; }
@media (max-width: 1000px) {
    .news-layout { grid-template-columns: 1fr; gap: 36px; }
}