@charset "utf-8";

/* ========== 主题变量与基础 ========== */
:root { --ink: #0b1a2e; --ink-2: #233750; --muted: #5f7591; --blue: #1656e0; --blue-2: #2f7bff; --sky: #3ac1ff; --bg: #f6f9ff; --white: #ffffff; --line: #e3ebf7; --line-2: #eef3fb; --radius: 18px; --shadow: 0 18px 40px -24px rgba(13, 45, 110, .28); --shadow-soft: 0 8px 24px -18px rgba(13, 45, 110, .35); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: rgba(22, 86, 224, .16); }
main h1, main h2, main h3, main h4, main p, main ul, main ol, main dl, main dd { margin: 0; }
main ul, main ol { padding: 0; list-style: none; }
main a { color: inherit; text-decoration: none; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.sec { padding: 96px 0; scroll-margin-top: 88px; }
.sec--tight { padding: 72px 0; }
.sec--paper { background: var(--white); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }

/* ========== 按钮 ========== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 42px; padding: 0 22px; border-radius: 999px; font-size: 14.5px; font-weight: 600; letter-spacing: .2px; transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease; white-space: nowrap; }
.btn--primary { background: linear-gradient(135deg, var(--blue-2), var(--blue)); color: #fff; box-shadow: 0 10px 22px -12px rgba(22, 86, 224, .85); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 28px -12px rgba(22, 86, 224, .9); }
.btn--ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.btn--ghost:hover { border-color: rgba(22, 86, 224, .35); color: var(--blue); transform: translateY(-2px); }
.btn--light { background: rgba(255, 255, 255, .12); color: #fff; border: 1px solid rgba(255, 255, 255, .35); }
.btn--light:hover { background: rgba(255, 255, 255, .2); }
.btn--white { background: #fff; color: var(--blue); }
.btn--white:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .5); }

/* ========== 首屏 ========== */
.hero { position: relative; overflow: hidden; padding: 76px 0 64px; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(to right, rgba(22, 86, 224, .055) 1px, transparent 1px), linear-gradient(to bottom, rgba(22, 86, 224, .055) 1px, transparent 1px); background-size: 62px 62px; -webkit-mask-image: radial-gradient(circle at 68% 26%, #000 0%, transparent 68%); mask-image: radial-gradient(circle at 68% 26%, #000 0%, transparent 68%); pointer-events: none; }
.hero::after { content: ""; position: absolute; width: 620px; height: 620px; right: -140px; top: -220px; border-radius: 50%; background: radial-gradient(circle, rgba(58, 193, 255, .20), rgba(47, 123, 255, .10) 45%, transparent 70%); filter: blur(10px); pointer-events: none; }
.hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr); gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 12.5px; color: var(--blue); letter-spacing: .6px; box-shadow: var(--shadow-soft); }
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue-2); box-shadow: 0 0 0 3px rgba(47, 123, 255, .16); }
.hero h1 { margin: 22px 0 18px; font-size: clamp(34px, 4.3vw, 58px); line-height: 1.24; letter-spacing: -1.2px; font-weight: 700; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--blue) 10%, var(--blue-2) 55%, var(--sky) 92%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { max-width: 520px; color: var(--muted); font-size: 16.5px; line-height: 1.85; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 30px; }
.tag { font-size: 12.5px; color: var(--ink-2); padding: 5px 12px; border-radius: 999px; background: rgba(22, 86, 224, .06); border: 1px solid rgba(22, 86, 224, .10); }
.hero-consult { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 30px; }
.hero-consult .consult-button-wrapper .button { margin: 0 0 10px; }
.hero-note { margin-top: 18px; font-size: 12.5px; color: #8a9cb4; }

/* ========== 首屏视觉 ========== */
.visual { position: relative; height: 520px; }
.device { position: absolute; left: 50%; top: 6px; transform: translateX(-50%); width: 272px; height: 508px; border-radius: 38px; padding: 9px; background: linear-gradient(160deg, #22334c, #0c1728 60%); box-shadow: 0 40px 70px -40px rgba(9, 30, 70, .65), 0 0 0 1px rgba(255, 255, 255, .06) inset; z-index: 2; }
.screen { position: relative; height: 100%; border-radius: 30px; overflow: hidden; background: #fff; display: flex; flex-direction: column; }
.notch { position: absolute; left: 50%; top: 8px; transform: translateX(-50%); width: 74px; height: 17px; border-radius: 999px; background: #0c1728; z-index: 3; }
.m-top { padding: 30px 14px 10px; display: flex; align-items: center; justify-content: space-between; font-size: 12px; font-weight: 600; color: var(--ink); }
.m-top span { font-size: 11px; color: #9aa9bd; letter-spacing: 2px; }
.m-banner { margin: 0 12px; height: 74px; border-radius: 14px; padding: 14px 16px; background: linear-gradient(120deg, #1a5ce8, #3ac1ff); color: #fff; display: flex; flex-direction: column; justify-content: center; box-shadow: 0 10px 18px -12px rgba(22, 86, 224, .9); }
.m-banner b { font-size: 15px; letter-spacing: .5px; }
.m-banner span { font-size: 11px; opacity: .9; margin-top: 2px; }
.m-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 14px 12px 0; text-align: center; }
.m-grid div { font-size: 9.5px; color: #6b7d93; }
.m-grid i { display: block; width: 34px; height: 34px; margin: 0 auto 5px; border-radius: 11px; background: linear-gradient(145deg, #eef4ff, #dfeaff); border: 1px solid #e3ebf7; position: relative; }
.m-grid i::after { content: ""; position: absolute; inset: 0; margin: auto; width: 13px; height: 13px; border-radius: 4px; background: linear-gradient(145deg, var(--blue-2), var(--blue)); opacity: .75; }
.m-label { display: flex; align-items: baseline; justify-content: space-between; margin: 16px 14px 8px; font-size: 11px; font-weight: 600; }
.m-label em { font-style: normal; font-size: 9px; color: #a3b1c3; font-weight: 400; }
.m-goods { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin: 0 12px; }
.m-card { border: 1px solid #eef2f8; border-radius: 11px; overflow: hidden; background: #fff; }
.m-card .ph { height: 66px; background: radial-gradient(circle at 30% 30%, #dbe8ff, transparent 60%), linear-gradient(140deg, #f0f5ff, #e5efff); position: relative; }
.m-card .ph::after { content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(145deg, #b7cff8, #8fb4f3); opacity: .7; }
.m-card b { display: block; font-size: 9.5px; padding: 7px 8px 2px; font-weight: 500; color: #43566e; }
.m-card span { display: block; font-size: 10.5px; padding: 0 8px 8px; color: #e2542f; font-weight: 600; }
.m-tab { margin-top: auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #f0f4fa; padding: 9px 6px 12px; text-align: center; font-size: 9px; color: #9aa9bd; }
.m-tab span:first-child { color: var(--blue); font-weight: 600; }
.float { position: absolute; background: rgba(255, 255, 255, .96); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 22px 44px -30px rgba(13, 45, 110, .55); padding: 12px 14px; z-index: 3; backdrop-filter: blur(6px); }
.float small { display: block; font-size: 10.5px; color: var(--muted); letter-spacing: .2px; }
.float b { display: block; font-size: 19px; letter-spacing: -.4px; margin-top: 1px; font-variant-numeric: tabular-nums; }
.float b i { font-style: normal; font-size: 11px; color: #16a34a; margin-left: 5px; }
.float--a { left: -4px; top: 112px; animation: floaty 7s ease-in-out infinite; }
.float--b { right: -12px; top: 212px; animation: floaty 8.5s ease-in-out infinite .8s; }
.float--c { right: 22px; bottom: 34px; padding: 12px 14px 10px; animation: floaty 9.5s ease-in-out infinite .4s; }
.bars { display: flex; align-items: flex-end; gap: 5px; height: 34px; margin-top: 8px; }
.bars i { width: 8px; border-radius: 3px 3px 1px 1px; background: linear-gradient(180deg, var(--blue-2), rgba(47, 123, 255, .25)); }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@media (prefers-reduced-motion:reduce) { 
    .float { animation: none !important; } 
}

/* ========== 数据条 ========== */
.stats { position: relative; background: var(--white); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 30px 24px; text-align: left; border-right: 1px solid var(--line-2); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-size: clamp(26px, 3vw, 38px); line-height: 1.15; letter-spacing: -1px; font-weight: 700; font-variant-numeric: tabular-nums; background: linear-gradient(120deg, var(--blue), var(--blue-2) 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ========== 通用标题 ========== */
.kicker { display: inline-flex; align-items: center; gap: 9px; font-size: 12px; letter-spacing: 2.4px; color: var(--blue); font-weight: 600; text-transform: uppercase; }
.kicker::before { content: ""; width: 18px; height: 1px; background: var(--blue); opacity: .55; }
.sec-head { max-width: 760px; margin-bottom: 52px; }
.sec-head h2 { margin: 16px 0 14px; font-size: clamp(26px, 3.2vw, 40px); line-height: 1.3; letter-spacing: -.7px; font-weight: 700; }
.sec-head h2 em { font-style: normal; color: var(--blue); }
.sec-head p { color: var(--muted); font-size: 16px; max-width: 640px; }
.sec-head--wide { max-width: 840px; }

/* ========== 价值卡 ========== */
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.value { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px 24px; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.value:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(22, 86, 224, .22); }
.value-icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(150deg, rgba(47, 123, 255, .14), rgba(22, 86, 224, .06)); border: 1px solid rgba(22, 86, 224, .12); color: var(--blue); margin-bottom: 16px; }
.value h3 { font-size: 16.5px; letter-spacing: -.2px; margin-bottom: 8px; }
.value p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }

/* ========== 功能模块 ========== */
.mods { display: flex; flex-direction: column; }
.mod { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); gap: 56px; padding: 52px 0; border-top: 1px solid var(--line); align-items: start; }
.mod:first-child { border-top: 0; padding-top: 0; }
.mod:last-child { padding-bottom: 0; }
.mod-no { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--blue); display: flex; align-items: center; gap: 10px; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.mod-no::after { content: ""; height: 1px; flex: 1; max-width: 64px; background: linear-gradient(90deg, rgba(22, 86, 224, .35), transparent); }
.mod h3 { font-size: clamp(21px, 2.3vw, 26px); letter-spacing: -.4px; line-height: 1.35; margin-bottom: 12px; }
.mod-sub { color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.feature-list { display: flex; flex-direction: column; gap: 12px; margin-top: 22px; }
.feature-list li { position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-2); line-height: 1.7; }
.feature-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 2px; background: var(--blue-2); transform: rotate(45deg); opacity: .85; }
.feature-list b { font-weight: 600; color: var(--ink); }
.panel { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-soft); }
.panel--tint { background: linear-gradient(180deg, #fbfdff, #f4f9ff); }
.mini-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; }
.mini-table th { text-align: left; font-weight: 600; font-size: 12px; letter-spacing: 1px; color: var(--muted); padding: 0 12px 10px; border-bottom: 1px solid var(--line); text-transform: uppercase; }
.mini-table td { padding: 14px 12px; border-bottom: 1px solid var(--line-2); vertical-align: top; line-height: 1.65; }
.mini-table tr:last-child td { border-bottom: 0; }
.mini-table td:nth-child(1) { font-weight: 600; color: var(--ink); width: 92px; }
.mini-table td:nth-child(2) { color: var(--ink-2); }
.mini-table td:nth-child(3) { color: var(--muted); font-size: 13px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 12.5px; color: var(--ink-2); background: #f2f7ff; border: 1px solid #e2ecfb; border-radius: 8px; padding: 6px 11px; }
.module-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.module-cell { border: 1px solid var(--line-2); border-radius: 12px; padding: 14px 15px; background: #fbfdff; }
.module-cell b { display: block; font-size: 13.5px; margin-bottom: 4px; }
.module-cell span { font-size: 12.5px; color: var(--muted); line-height: 1.65; display: block; }
.kpi-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.kpi { border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 12px 10px; background: #fbfdff; }
.kpi small { display: block; font-size: 11.5px; color: var(--muted); }
.kpi b { display: block; font-size: 18px; letter-spacing: -.4px; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi b i { font-style: normal; font-size: 10.5px; color: #16a34a; margin-left: 3px; }
.chart { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 14px; }
.chart-bars { display: flex; align-items: flex-end; gap: 9px; height: 78px; margin-top: 10px; }
.chart-bars i { flex: 1; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, rgba(47, 123, 255, .85), rgba(47, 123, 255, .16)); }
.chart-bars i:nth-child(5) { background: linear-gradient(180deg, var(--blue), rgba(22, 86, 224, .3)); }
.chart-x { display: flex; gap: 9px; margin-top: 7px; }
.chart-x span { flex: 1; text-align: center; font-size: 10.5px; color: #9fb0c6; }

/* ========== 规格参数 ========== */
.spec { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 56px; }
.spec-row { display: grid; grid-template-columns: 96px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line-2); align-items: start; }
.spec-row dt { font-size: 13px; color: var(--muted); padding-top: 2px; }
.spec-row dd { font-size: 14.5px; color: var(--ink-2); line-height: 1.75; }
.spec-row--full { grid-column: 1 / -1; }
.spec-row--full dd { font-size: 15px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud span { font-size: 12.5px; color: var(--ink-2); padding: 5px 10px; border-radius: 7px; background: #f4f8ff; border: 1px solid #e5eefb; }

/* ========== 场景 ========== */
.scene { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.scene-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; }
.scene-card h3 { font-size: 18px; margin-bottom: 6px; letter-spacing: -.2px; }
.scene-card .scene-lead { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.scene-item { display: flex; gap: 14px; padding: 13px 0; border-top: 1px dashed var(--line-2); }
.scene-item:first-of-type { border-top: 0; }
.scene-item b { width: 62px; flex-shrink: 0; font-size: 13.5px; color: var(--blue); font-weight: 600; }
.scene-item span { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; }
.person { display: flex; gap: 12px; padding: 12px 0; border-top: 1px dashed var(--line-2); }
.person:first-of-type { border-top: 0; }
.person b { font-size: 13.5px; color: var(--ink); width: 88px; flex-shrink: 0; }
.person span { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ========== 优势 ========== */
.adv-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.adv { display: flex; gap: 18px; padding: 26px; border-radius: var(--radius); background: linear-gradient(180deg, #fff, #fbfdff); border: 1px solid var(--line); transition: border-color .3s ease, transform .3s ease; }
.adv:hover { border-color: rgba(22, 86, 224, .25); transform: translateY(-3px); }
.adv-no { font-size: 26px; font-weight: 700; letter-spacing: -1px; line-height: 1; background: linear-gradient(150deg, var(--blue), var(--sky)); -webkit-background-clip: text; background-clip: text; color: transparent; flex-shrink: 0; width: 38px; }
.adv h3 { font-size: 16px; margin-bottom: 6px; }
.adv p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }
.adv ul { margin-top: 10px; display: flex; flex-direction: column; gap: 5px; }
.adv ul li { font-size: 13px; color: var(--ink-2); position: relative; padding-left: 14px; }
.adv ul li::before { content: ""; position: absolute; left: 0; top: 8px; width: 5px; height: 5px; border-radius: 50%; background: rgba(22, 86, 224, .45); }

/* ========== 服务流程 ========== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.step { position: relative; padding-top: 26px; }
.step::before { content: ""; position: absolute; top: 0; left: 0; right: -20px; height: 2px; background: linear-gradient(90deg, rgba(22, 86, 224, .45), rgba(22, 86, 224, .06)); }
.step:last-child::before { right: 0; background: linear-gradient(90deg, rgba(22, 86, 224, .45), transparent); }
.step::after { content: ""; position: absolute; top: -4px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: #fff; border: 2px solid var(--blue-2); box-shadow: 0 0 0 4px rgba(47, 123, 255, .12); }
.step b { display: block; font-size: 15px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ========== FAQ ========== */
.faq { max-width: 860px; }
.faq details { border-bottom: 1px solid var(--line); padding: 6px 0; }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; position: relative; padding: 20px 44px 20px 0; font-size: 15.5px; font-weight: 600; color: var(--ink); transition: color .2s ease; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 8px; top: 28px; width: 9px; height: 9px; border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted); transform: rotate(45deg); transition: transform .25s ease; }
.faq details[open] summary { color: var(--blue); }
.faq details[open] summary::after { transform: rotate(-135deg); border-color: var(--blue); }
.faq .ans { padding: 0 40px 22px 0; font-size: 14px; color: var(--muted); line-height: 1.85; }
.faq .ans b { color: var(--ink-2); font-weight: 600; }

/* ========== 结尾 CTA ========== */
.cta { position: relative; overflow: hidden; margin: 0 0 0; padding: 76px 0; background: linear-gradient(120deg, #08182f, #0f2a52 55%, #123a72); color: #fff; }
.cta::before { content: ""; position: absolute; width: 680px; height: 680px; right: -180px; top: -280px; border-radius: 50%; background: radial-gradient(circle, rgba(58, 193, 255, .28), transparent 66%); }
.cta::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(to right, rgba(255, 255, 255, .05) 1px, transparent 1px); background-size: 70px 70px; -webkit-mask-image: radial-gradient(circle at 30% 40%, #000, transparent 72%); mask-image: radial-gradient(circle at 30% 40%, #000, transparent 72%); }
.cta-inner { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 44px; align-items: center; }
.cta h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.32; letter-spacing: -.7px; margin-bottom: 12px; }
.cta p { color: rgba(255, 255, 255, .7); font-size: 15px; max-width: 560px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.contact-row { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 24px; font-size: 13.5px; color: rgba(255, 255, 255, .72); }
.contact-row span b { color: #fff; font-weight: 600; margin-left: 6px; font-variant-numeric: tabular-nums; }

/* ========== 滚动出现 ========== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s cubic-bezier(.16, 1, .3, 1), transform .7s cubic-bezier(.16, 1, .3, 1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion:reduce) { 
    .reveal { opacity: 1 !important; transform: none !important; transition: none !important; } 
    html { scroll-behavior: auto; } 
}

/* ========== 响应式 ========== */
@media (max-width:1080px) { 
    .hero-inner { grid-template-columns: 1fr; gap: 44px; } 
    .visual { height: 480px; order: 2; } 
    .hero-sub { max-width: none; } 
    .value-grid { grid-template-columns: repeat(2, 1fr); } 
    .mod { grid-template-columns: 1fr; gap: 26px; } 
    .module-grid { grid-template-columns: 1fr 1fr; } 
    .spec { grid-template-columns: 1fr; gap: 0; } 
    .adv-grid { grid-template-columns: 1fr; } 
    .cta-inner { grid-template-columns: 1fr; } 
}
@media (max-width:760px) { 
    .hero { padding: 48px 0 64px; }
    .wrap { padding: 0 20px; } 
    .sec { padding: 48px 0; } 
    .stats-grid { grid-template-columns: 1fr 1fr; } 
    .stat { border-bottom: 1px solid var(--line-2); } 
    .stat:nth-child(2n) { border-right: 0; } 
    .stat:nth-child(3), .stat:nth-child(4) { border-bottom: 0; } 
    .value-grid { grid-template-columns: 1fr; } 
    .scene { grid-template-columns: 1fr; } 
    .steps { grid-template-columns: 1fr 1fr; gap: 24px 18px; } 
    .step::before { right: -18px; } 
    .step:nth-child(2n)::before { right: 0; } 
    .kpi-row { grid-template-columns: 1fr 1fr; } 
    .module-grid { grid-template-columns: 1fr; } 
    .mini-table td:nth-child(3) { display: none; } 
    .mini-table th:nth-child(3) { display: none; } 
    .visual { height: 440px; } 
    .device { width: 236px; height: 448px; } 
    .float--a { left: -8px; top: 88px; } 
    .float--b { right: -8px; top: 186px; } 
    .cta { padding: 56px 0; } 
    .spec-row { grid-template-columns: 84px 1fr; gap: 14px; } 
    .hero-consult .consult-wechat, .hero-consult .consult-share { display: none; } 
}