/* ============================================================
   figma-home.css — 1:1 还原 Figma 节点 4101:6925（1440 设计稿）
   布局原则：flex / grid 文档流；absolute 仅用于光晕与装饰连线
   ============================================================ */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@100..900&family=Ubuntu:ital,wght@0,300;0,400;0,500;0,700;1,300;1,400;1,500;1,700&display=swap");
:root {
    --bg: #0a0623;
    --blue: #2251ff;
    --blue-deep: #1b28d6;
    --text-strong: #f8fafc;
    --text-sub: #b9c0cc;
    --text-gray: #8b949e;
    --text-slate: #94a3b8;
    --text-dim: #64748b;
    --green: #00ea94;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    --card-border: rgba(120, 150, 210, 0.22);
    /* 全站统一使用 Noto Sans SC */
    --font-cn: "Noto Sans SC", "Source Han Sans SC", sans-serif;
    --font-en: "Noto Sans SC", "Source Han Sans SC", sans-serif;
    --font-poppins: "Noto Sans SC", "Source Han Sans SC", sans-serif;
    --font-brand: "Ubuntu", "Source Han Sans SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: auto; }

body {
    background: var(--bg);
    color: #fff;
    font-family: var(--font-cn);
    overflow-x: clip;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

img { display: block; }
a { text-decoration: none; color: inherit; }
.shell { max-width: 1440px; margin: 0 auto; }

/* ---------- 页面级光晕（允许 absolute） ---------- */
.page-glows {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: clip;
}
.glow { position: absolute; will-change: transform; }
.glow-hero-right    { left: calc(50% - 720px + 938px);  top: -21px;   width: 1219px; }
.glow-problems-left { left: calc(50% - 720px - 493px);  top: 1098px;  width: 993px; }
.glow-services-right{ left: calc(50% - 720px + 907px);  top: 1610px;  width: 993px; }
.glow-services-left { left: calc(50% - 720px - 582px);  top: 2492px;  width: 1186px; }
.glow-why-left      { left: calc(50% - 720px - 531px);  top: 3250px;  width: 1186px; }

main, .site-footer, .site-header { position: relative; z-index: 1; }

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 60px;
    background: var(--bg);
    box-shadow: 0 1px 0 rgba(166, 162, 162, 0.25);
    z-index: 100;
    transition: box-shadow .4s ease, background .4s ease;
}
.site-header.scrolled {
    background: rgba(10, 6, 35, 0.82);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(166, 162, 162, 0.25), 0 12px 32px rgba(0, 0, 0, 0.35);
}
.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    height: 60px;
    display: flex;
    align-items: center;
    padding: 0 80px 0 73px;
}
.brand { display: flex; align-items: center; }
.brand-mark { width: 35.2px; height: 35.2px; margin-right: 13px; }
.brand-name { font-family: var(--font-brand); font-weight: 700; font-size: 26.2px; line-height: 42.9px; color: #fff; }
.brand-suffix { font-family: var(--font-brand); font-weight: 300; font-size: 24.75px; line-height: 42.9px; color: #fff; }

.main-nav {
    display: flex;
    gap: 34px;
    margin-left: 232px;
    height: 60px;
}
.main-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 60px;
    min-width: 60px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    transition: color .3s ease;
}
.main-nav a span { margin-top: 18px; line-height: 24px; }
.main-nav a:hover span { color: #6ea2ff; }
.main-nav a.active span {
    background: linear-gradient(48deg, #2a4ec6 25%, #007bff 83%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.nav-underline {
    width: 47px; height: 3px;
    margin-top: auto;
    opacity: 0;
    transform: scaleX(0);
    transition: opacity .35s ease, transform .35s ease;
}
.main-nav a.active .nav-underline,
.main-nav a:hover .nav-underline { opacity: 1; transform: scaleX(1); }

.header-cta {
    margin-left: auto;
    width: 122px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-deep);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    filter: drop-shadow(0 18px 20px rgba(22, 86, 245, 0.28));
    transition: background .3s ease, transform .3s ease, filter .3s ease;
}
.header-cta:hover { background: #2a3bff; filter: drop-shadow(0 18px 26px rgba(22, 86, 245, 0.45)); }

/* ---------- 移动端汉堡按钮（仅 ≤768px 显示） ---------- */
.menu-btn {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 40px; height: 40px;
    margin-left: auto;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    cursor: pointer;
    transition: background .3s ease;
}
.menu-btn:active { background: rgba(255, 255, 255, 0.14); }
.menu-btn span {
    width: 18px; height: 2px;
    border-radius: 2px;
    background: #fff;
}

/* ---------- 移动端抽屉导航（dialog） ---------- */
.mobile-drawer {
    margin: 0 0 0 auto;
    padding: 0;
    border: none;
    outline: none;
    width: min(81vw, 320px);
    height: 100dvh;
    max-height: 100dvh;
    background: linear-gradient(200deg, #100b38 0%, #070420 100%);
    color: #fff;
    box-shadow: -24px 0 60px rgba(0, 0, 0, 0.5);
    transform: translateX(100%);
    transition: transform .38s cubic-bezier(.22, .68, 0, 1);
}
.mobile-drawer[open] { transform: translateX(0); }
.mobile-drawer.closing { transform: translateX(100%); }
.mobile-drawer::backdrop {
    background: rgba(4, 2, 16, 0.55);
    backdrop-filter: blur(3px);
    transition: opacity .38s ease;
}
.mobile-drawer.closing::backdrop { opacity: 0; }
@starting-style {
    .mobile-drawer[open] { transform: translateX(100%); }
    .mobile-drawer[open]::backdrop { opacity: 0; }
}
.drawer-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 16px 22px calc(24px + env(safe-area-inset-bottom));
}
.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.drawer-brand { display: flex; align-items: center; }
.drawer-brand img { width: 26px; height: 26px; margin-right: 8px; }
.drawer-brand .brand-name { font-size: 19px; line-height: 28px; }
.drawer-brand .brand-suffix { font-size: 18px; line-height: 28px; }
.drawer-close {
    width: 36px; height: 36px;
    background: none;
    border: none;
    color: #cfd6e6;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: color .3s ease, transform .3s ease;
}
.drawer-close:active { color: #fff; transform: rotate(90deg); }
.drawer-nav { display: flex; flex-direction: column; margin-top: 6px; }
.drawer-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 2px;
    font-size: 16px;
    font-weight: 500;
    color: #e7ebf5;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    transition: color .3s ease, padding-left .3s ease;
}
.drawer-nav a::after { content: "›"; color: #5d6580; font-size: 18px; }
.drawer-nav a:active { color: #6ea2ff; padding-left: 8px; }
.drawer-nav a.active { color: #4d8bff; }
.drawer-nav a.active::after { color: #4d8bff; }
.drawer-cta { margin-top: auto; width: 100%; max-width: none; flex: 0 0 auto; height: 50px; }

/* ---------- Hero ---------- */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 162px;
}
.hero-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 17px;
    border-radius: 9999px;
    background: var(--glass-bg);
    border: 1px solid rgba(34, 81, 255, 0.2);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(6px);
}
.hero-badge img { width: 11.6px; height: 11.9px; }
.hero-badge span { font-size: 14px; line-height: 20px; color: #53ffab; }

.hero-title {
    margin-top: 25px;
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 72.16px;
    font-weight: 700;
    line-height: 85.28px;
    letter-spacing: 0.32px;
    color: #fff;
    text-align: center;
}
.t-ai {
    font-size: 78.72px;
    font-weight: 900;
    line-height: 77.6px;
    background: linear-gradient(180deg, #00ea94 0%, #7dffcf 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-sub {
    margin-top: 16px;
    max-width: 538px;
    font-size: 18px;
    line-height: 24px;
    color: var(--text-sub);
    text-align: center;
}
.hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 17px;
}

/* 按钮 */
.btn {
    width: 173px; height: 53px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: transform .35s cubic-bezier(.22,.68,0,1.2), box-shadow .35s ease, filter .35s ease;
}
.btn img { width: 17px; height: 13px; transition: transform .35s ease; }
.btn:hover img { transform: translateX(5px); }
.btn-primary {
    color: #fff;
    border: 1px solid #517efa;
    background-image: linear-gradient(15deg, #2a4ec6 49%, #1f47d8 8%, #0059ff 80%);
    box-shadow: inset 0 18px 40px rgba(51, 90, 255, 0.28);
}
.btn-primary:hover {
    box-shadow: inset 0 18px 40px rgba(51, 90, 255, 0.45), 0 14px 36px rgba(22, 86, 245, 0.4);
}
.btn-ghost {
    border: 1px solid #0c87e4;
    box-shadow: 0 18px 40px rgba(22, 86, 245, 0.28);
    background: transparent;
}
.btn-ghost:hover { box-shadow: 0 18px 48px rgba(22, 86, 245, 0.5); background: rgba(12, 135, 228, 0.08); }
.grad-text {
    background-image: linear-gradient(125deg, #309fff 40%, #34bcff 105%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ---------- Hero 卡片拼贴（grid 文档流） ---------- */
.hero-collage {
    margin-top: 35px;
    width: 1440px;
    height: 664px;
    display: grid;
    grid-template-columns: 247px 75px 300px 50px 73px 63px 333px 27.8px 271.2px;
    grid-template-rows: 71px 195.45px 34.55px 24.6px 22.4px 313px 2.7px;
    position: relative;
    transform-origin: top center;
}
.collage-wires { position: absolute; inset: 0; pointer-events: none;z-index: 1 }
.wire { position: absolute; }
.wire-305 { left: 198px;   top: 177px;   width: 113px;   height: 304px; }
.wire-314 { left: 725.7px; top: 80.2px;  width: 100px;   height: 64.5px; transform: rotate(-90deg); }
.wire-306 { left: 490.5px; top: 248.2px; width: 313.5px; height: 40.3px; }
.wire-310 { left: 590.5px; top: 239px;   width: 98px;    height: 36px; }
.wire-307 { left: 395.5px;top: 238.5px;  width: 98.5px;  height: 16px; }
.wire-308 { left: 300.5px; top: 238.5px; width: 98px;    height: 16px; }

.hero-card {
    border: 1.5px solid var(--card-border);
    border-radius: 27px;
    will-change: transform;
}

/* AI 工作流卡片 */
.card-workflow {
    grid-column: 2 / 6;
    grid-row: 2 / 3;
    height: 195.45px;
    padding: 27px 21px 0;
    background-image: linear-gradient(203deg, #010024 9%, #000d2e 84%);
    filter: drop-shadow(0 42px 48px rgba(8, 20, 50, 0.42));
}
.wf-title { font-size: 18px; font-weight: 700; line-height: 30px; color: #fff; }
.wf-steps {
    margin-top: 22px;
    display: flex;
    align-items: flex-start;
}
.wf-step {
    width: 75px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.wf-icon {
    width: 54px; height: 54px;
    background: #050a2a;
    border: 1.5px solid #222b65;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 6px 12px rgba(18, 46, 110, 0.06));
    color: #5489fe; /* 图标默认蓝色，svg stroke 用 currentColor */
    /* 只过渡合成器属性，避免布局重排与边框渐隐造成的边缘瑕疵 */
    transition: transform .4s ease, color .4s ease, box-shadow .4s ease, border-radius .4s ease;
}
.wf-icon .wf-svg { width: 25.5px; height: 25.5px; }
.wf-step p {
    margin-top: 8.25px;
    font-size: 13.5px;
    font-weight: 700;
    line-height: 22.5px;
    color: #fff;
    white-space: nowrap;
    transition: color .4s ease;
}
/* 工作流轮番激活高亮（JS 切换）：采用原“智能 Agent”激活态样式
   54px → 61.5px 用 scale(1.139) 实现，缩放中心与设计稿一致，图标随之 25.5 → 29px */
.wf-step.is-pulse .wf-icon {
    transform: scale(1.139);
    border-color: transparent;
    border-width: 0;
    border-radius: 10.5px; /* 缩放后视觉 ≈ 12px */
    background: linear-gradient(180deg, #4f86ff 0%, #8db4f8 100%);
    box-shadow: 0 0 16px rgba(79, 134, 255, 0.5);
    color: #fff; /* 激活态图标白色 */
}
.wf-step.is-pulse p { color: #5288fe; }
.wf-dash {
    width: 29.5px;
    height: 6px;
    margin: 24.6px -5px 0;
    flex-shrink: 0;
}

/* 智能 Agent 卡片 */
.card-agents {
    grid-column: 7 / 8;
    grid-row: 1 / 5;
    height: 325.6px;
    padding: 24px;
    background-image: linear-gradient(235deg, #020055 33%, #000d2e 83%);
    box-shadow: 0 42px 96px rgba(8, 20, 50, 0.42);
    overflow: clip;
}
.agents-title { font-size: 21px; font-weight: 700; line-height: 34.5px; color: #fff; }
.agent-row {
    height: 57px;
    display: flex;
    align-items: center;
}
.card-agents .agent-row:first-of-type { margin-top: 18px; }
.agent-avatar {
    width: 39px; height: 39px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.agent-avatar img { width: 21px; height: 21px; }
.av-blue   { background-image: linear-gradient(225deg, #2e6bff 50%, #0c3fd6 121%); }
.av-purple { background-image: linear-gradient(225deg, #7c3aed 50%, #5b21b6 121%); }
.av-sky    { background-image: linear-gradient(225deg, #0ea5e9 50%, #0369a1 121%); }
.agent-name { margin-left: 13.5px; font-size: 18px; font-weight: 700; line-height: 28.5px; color: #fff; }
.agent-status {
    margin-left: auto;
    width: 73.5px; height: 28.3px;
    border-radius: 150px;
    background: rgba(34, 197, 94, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13.5px;
    font-weight: 700;
    color: #16a34a;
}
.agent-more {
    margin-top: 11px;
    padding-top: 13.5px;
    border-top: 1.5px solid rgba(230, 235, 245, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 16.5px;
    font-weight: 700;
    line-height: 27px;
    cursor: pointer;
}
.agent-more-link { color: #3e44ff; transition: color .3s ease; }
.agent-more-arrow { color: #fff; transition: transform .3s ease; }
.agent-more:hover .agent-more-link { color: #6ea2ff; }
.agent-more:hover .agent-more-arrow { transform: translateX(6px); }

/* 知识库卡片 */
.card-kb {
    grid-column: 3 / 4;
    grid-row: 4 / 7;
    height: 360px;
    padding: 24px 24px 27.7px;
    display: flex;
    flex-direction: column;
    background-image: linear-gradient(232deg, #010024 9%, #000d2e 84%);
    box-shadow: 0 42px 96px rgba(8, 20, 50, 0.42);
    overflow: clip;
}
.kb-head { display: flex; align-items: center; gap: 10.5px; }
.kb-head img { width: 22.5px; height: 22.5px; }
.kb-head h3 { font-size: 18px; font-weight: 700; line-height: 30px; color: #fff; }
.kb-label { margin-top: 14px; font-size: 15px; line-height: 25.5px; color: #8794ab; }
.kb-figure { display: flex; align-items: baseline; }
.kb-number { font-size: 35.5px; font-weight: 700; line-height: 58.5px; color: #fff; }
.kb-delta { margin-left: 30px; font-size: 15.4px; font-weight: 700; line-height: 27px; color: #16a34a; }
.kb-bars {
    margin-top: auto;
    display: flex;
    align-items: flex-end;
    gap: 3px;
}
.kb-bars i, .dash-bars i {
    display: block;
    width: 18px;
    border-radius: 3px;
    background: linear-gradient(180deg, #4f86ff 0%, #8db4f8 100%);
    transform-origin: bottom;
}
.dash-bars i { width: 22.8px; border-radius: 3.6px; background: linear-gradient(180deg, #5b8bff 0%, #2e6bff 100%); }

/* 业务看板卡片 */
.card-dash {
    grid-column: 5 / 9;
    grid-row: 6 / 8;
    height: 315.7px;
    border: none;
    border-radius: 32.4px;
    padding: 26px 21.6px 0;
    background-image: linear-gradient(205deg, rgba(49, 45, 182, 0.18) 25%, rgba(16, 69, 201, 0.18) 86%);
    overflow: clip;
}
.dash-head { display: flex; align-items: center; gap: 4px; padding-left: 5.4px; }
.dash-head img { width: 33px; height: 33px; }
.dash-head h3 { font-size: 21.6px; font-weight: 700; line-height: 36px; color: #aebbd6; }
.dash-panels {
    margin-top: 21px;
    display: grid;
    grid-template-columns: repeat(3, 147.6px);
    gap: 7.2px;
}
.dash-panel {
    height: 205.2px;
    border-radius: 12.6px;
    background: rgba(3, 7, 29, 0.2);
    border: 1px solid rgba(37, 40, 133, 0.25);
    padding: 14px 6px 0 12.6px;
    display: flex;
    flex-direction: column;
    transition: background .35s ease, border-color .35s ease;
}
.dash-panel:hover { background: rgba(3, 7, 29, 0.45); border-color: rgba(79, 134, 255, 0.45); }
.dash-label { font-size: 16.2px; line-height: 27px; color: #8294b8; }
.dash-value { margin-top: 4px; font-size: 32.1px; font-weight: 700; line-height: 52.2px; color: #fff; }
.dash-line { margin: 22px 0 0 7px; width: 99px; height: 28.8px; }
.dash-bars {
    margin-top: 18px;
    display: flex;
    align-items: flex-end;
    gap: 3.6px;
}
.dash-donut {
    margin: 14px 0 0 9.6px;
    width: 57.6px;
    height: 57.6px;
    background: url("/assets/images/figma-home/donut-track.svg") no-repeat center / contain;
    display: flex;
}
.donut-arc {
    width: 29.7px; height: 29.7px;
    margin: 3.6px 0 0 4.3px;
    transform: rotate(90deg);
}

/* hero 卡片 hover 微互动 */
.hero-card { transition: border-color .4s ease; }
.hero-card:hover { border-color: rgba(120, 170, 255, 0.45); }

/* ---------- 价值条 ---------- */
.value-bar {
    margin: 102px auto 0;
    max-width: 1440px;
    padding: 0 131px 0 131px;
}
.value-grid {
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
    padding: 49px 32px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}
.value-item { display: flex; align-items: center; gap: 16px; height: 52px; }
.value-item img { flex-shrink: 0; object-fit: contain; }
.value-item:nth-child(1) img { width: 25.5px; height: 29.7px; }
.value-item:nth-child(2) img { width: 34.5px; height: 15.7px; }
.value-item:nth-child(3) img { width: 28.6px; height: 22.5px; }
.value-item-mid {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 49px;
}
.value-strong { font-family: var(--font-en); font-size: 24px; font-weight: 700; line-height: 32px; color: var(--text-strong); }
.value-strong-sm { font-family: var(--font-cn); font-size: 20px; font-weight: 500; line-height: 28px; }
.value-weak { font-size: 14px; line-height: 20px; color: var(--text-dim); }

/* ---------- 通用 Section ---------- */
.section { max-width: 1440px; margin: 0 auto; padding: 0 112px; }
.section-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.section-mark { width: 51px; height: 48px; margin-bottom: 24px; }
.section-head h2 {
    font-size: 48px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: -1.2px;
    color: var(--text-strong);
}
.section-head p { margin-top: 12px; font-size: 18px; line-height: 28px; color: var(--text-gray); }
.section-pill {
    margin-top: 22px;
    width: 80px; height: 6px;
    border-radius: 9999px;
    background: var(--blue);
    transform-origin: center;
}

/* ---------- 我们解决什么问题 ---------- */
.section-problems { padding-top: 59px; }
.problems-grid {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.problem-card {
    padding: 33px;
    border-radius: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(6px);
    display: flex;
    flex-direction: column;
    gap: 14.9px;
    transition: transform .45s cubic-bezier(.22,.68,0,1.1), border-color .45s ease, box-shadow .45s ease;
}
.problem-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 234, 148, 0.35);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35), 0 0 32px rgba(0, 234, 148, 0.08);
}
.problem-icon {
    width: 48px; height: 48px;
    border-radius: 6px;
    background: rgba(0, 234, 148, 0.16);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .45s ease, transform .45s ease;
}
.problem-icon img {width: 100%;height: 100%;object-fit: contain;}
.problem-card:hover .problem-icon { background: rgba(0, 234, 148, 0.3); transform: scale(1.08) rotate(-4deg); }
.problem-card h3 { padding-top: 9.1px; font-size: 22px; font-weight: 700; line-height: 28px; color: var(--text-strong); white-space: nowrap; }
.problem-card p { font-size: 14px; line-height: 22.75px; color: var(--text-slate); max-width: 230px; }

/* 轮播滑块指示器（滚动条样式，移动端显示） */
.carousel-scrollbar {
    display: none;
    width: 148px;
    height: 4px;
    margin: 18px auto 0;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.14);
    cursor: pointer;
    touch-action: none;
}
.carousel-thumb {
    height: 100%;
    border-radius: 2px;
    background: var(--blue);
    will-change: transform, width;
}
/* 拖拽滑块时临时关闭吸附，避免抢夺滚动 */
.problems-grid.dragging { scroll-snap-type: none; scroll-behavior: auto; }

/* ---------- 核心服务模块 ---------- */
.section-services { padding-top: 130px; }
.services-grid {
    margin-top: 62px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    padding: 4px;
    border-radius: 16px;
    position: relative;
    transition: transform .45s cubic-bezier(.22,.68,0,1.1);
}
/* 渐变描边光圈（hover 渐显，装饰层） */
.service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background-image: linear-gradient(143deg, rgba(34, 81, 255, 0.55) 0%, rgba(34, 81, 255, 0) 100%);
    opacity: 0;
    transition: opacity .45s ease;
}
.service-card:hover { transform: translateY(-8px); }
.service-card:hover::before { opacity: 1; }
.service-inner {
    position: relative;
    padding: 33px;
    border-radius: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(6px);
    display: flex;
    flex-direction: column;
    gap: 10.9px;
}
.service-card:hover .service-inner { background: rgba(30, 41, 59, 0.62); }
.service-img {
    height: 103px;
    display: flex;
    align-items: flex-start;
}
.service-img > img {
    height: 103px;
    transition: transform .5s cubic-bezier(.22,.68,0,1.1);
}
.service-card:hover .service-img > img { transform: scale(1.07) rotate(2deg); }
.service-img-sprite { width: 110px; overflow: clip; position: relative; }
.sprite { position: relative; flex-shrink: 0; width: 520.8px; height: 138.6px; max-width: none; }
.sprite-1 { width: 484.6px; height: 129.2px; left: -15.3px; top: -8.4px; }
.sprite-2 { left: -203.5px; top: -16.5px; }
.sprite-3 {width: 100%;aspect-ratio: 1;/* left: -389px; *//* top: -19.5px; */}
.service-card:hover .sprite { transform: scale(1.05); }
.service-inner h3 { padding-top: 13.1px; font-size: 24px; font-weight: 700; line-height: 28px; color: var(--text-strong); }
.service-inner p { font-size: 14px; line-height: 22.75px; color: var(--text-slate); }

/* ---------- 为什么选择 ---------- */
.section-why { padding-top: 161px; }
.why-grid {
    margin-top: 49px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.why-card {
    padding: 33px 31px;
    border-radius: 16px 16px 0 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(6px);
    display: flex;
    flex-direction: column;
    gap: 10.9px;
    transition: transform .45s cubic-bezier(.22,.68,0,1.1), border-color .45s ease, box-shadow .45s ease;
}
.why-card:hover {
    transform: translateY(-8px);
    border-color: rgba(34, 81, 255, 0.45);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35), 0 0 36px rgba(34, 81, 255, 0.12);
}
.why-num {
    font-family: var(--font-poppins);
    font-weight: 600;
    font-size: 48px;
    line-height: 76px;
    color: var(--blue);
    transition: text-shadow .45s ease;
}
.why-card:hover .why-num { text-shadow: 0 0 28px rgba(34, 81, 255, 0.65); }
.why-card h3 { font-size: 20px; font-weight: 700; line-height: 28px; color: var(--text-strong); }
.why-desc { font-family: var(--font-en); font-size: 14px; line-height: 22px; color: var(--text-gray); max-width: 220px; }

/* ---------- CTA ---------- */
.section-cta {
    padding-top: 247px;
    padding-bottom: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.cta-eyebrow {
    font-family: var(--font-poppins);
    font-weight: 500;
    font-size: 16px;
    line-height: 24px;
    color: #00ffc8;
}
.cta-title {
    margin-top: 27px;
    font-size: 64px;
    font-weight: 600;
    line-height: 80px;
    color: #fff;
    font-family: var(--font-poppins);
}
.cta-title .word { display: inline-block; white-space: pre; }
.cta-sub {
    margin-top: 7px;
    font-family: var(--font-poppins);
    font-size: 24px;
    line-height: 32px;
    color: #fff;
    opacity: 0.5;
}
.cta-actions { margin-top: 31px; }

/* ---------- Footer ---------- */
.site-footer {
    position: relative;
    min-height: 791px;
    overflow: clip;
}
/* 背景渐变与世界地图：装饰（允许 absolute） */
.footer-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    transform: scaleX(-1);
    pointer-events: none;
}
.footer-map {
    position: absolute;
    left: 3.1%;
    right: 3.1%;
    bottom: 0;
    width: 93.8%;
    mix-blend-mode: luminosity;
    opacity: 0.5;
    pointer-events: none;
    object-fit: cover;
    object-position: bottom;
    height: 276px;
}
.footer-inner {
    position: relative;
    max-width: 1440px;
    margin: 0 auto;
    padding: 142px 100px 0;
    display: flex;
    flex-direction: column;
}
.footer-logo { display: flex; align-items: center; gap: 28px; height: 64px; }
.footer-bird { width: 62.7px; height: 64px; display: flex; flex-direction: column; }
.bird-fill-1 { width: 62.7px; height: 50.4px; }
.bird-fill-3 { width: 39.8px; height: 28.3px; margin: -14.8px 0 0 11.5px; }
.footer-wordmark { width: 161px; height: 46px; }
.footer-divider {
    margin-top: 58px;
    border: none;
    height: 1px;
    background: rgba(152, 152, 152, 0.5);
}
.footer-columns {
    margin-top: 56px;
    display: grid;
    grid-template-columns: 1fr min(230px, 315px) min(230px, 333px) min(80px,100px);
    font-family: var(--font-poppins);
    gap: 100px;
}
.footer-contact p { font-size: 16px; line-height: 22.4px; color: #fff; }
.footer-contact p + p { margin-top: 14px; }
.footer-contact p:last-of-type { max-width: 280px; }
.footer-social { margin-top: 28px; display: flex; gap: 16px; }
.footer-social a { transition: transform .3s ease, opacity .3s ease; }
.footer-social a:hover { transform: translateY(-4px); opacity: 0.85; }
.footer-social img { width: 40px; height: 40px; }
.footer-col h4 { font-size: 20px; font-weight: 600; line-height: 28px; color: #fff; margin: 8px 0 24px; }
.footer-col ul { list-style: none; }
.footer-col li + li { margin-top: 12px; }
.footer-col a {
    display: block;
    font-size: 14px;
    line-height: 20px;
    color: #fff;
    max-width: 320px;
    transition: color .3s ease, transform .3s ease;
}
.footer-col a:hover { color: #6ea2ff; transform: translateY(-4px); }
.footer-copy {
    margin: 96px auto 0;
    padding-bottom: 26px;
    font-size: 14px;
    line-height: 19.6px;
    opacity: 0.6;
    color: #fff;
    font-family: var(--font-cn);
}

/* ---------- 动效初始态（JS 控制，noscript 安全） ---------- */
.js [data-reveal],
.js [data-stagger] > * {
    opacity: 0;
}
.js .section-pill { transform: scaleX(0); }

/* ---------- 响应式（基础降级） ---------- */
@media (max-width: 1280px) {
    .main-nav { margin-left: 60px; gap: 14px; }
    .header-inner { padding: 0 32px; }
    .value-bar { padding: 0 48px; }
    .section { padding-left: 48px; padding-right: 48px; }
    .footer-columns { grid-template-columns: 1fr 1fr; gap: 48px; }
    .footer-inner { padding: 120px 48px 0; }
}
@media (max-width: 1024px) {
    .problems-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-title { font-size: 52px; line-height: 64px; }
    .t-ai { font-size: 58px; }
}
/* ============================================================
   移动端（≤768px）
   ============================================================ */
@media (max-width: 768px) {

    /* ---- 光晕：按页面百分比定位，适配移动端页高 ---- */
    .glow-hero-right    { left: auto; right: -60vw; top: -30px; width: 150vw; }
    .glow-problems-left { left: -70vw; top: 16%;  width: 150vw; }
    .glow-services-right{ left: auto; right: -70vw; top: 36%; width: 150vw; }
    .glow-services-left { left: -75vw; top: 54%;  width: 160vw; }
    .glow-why-left      { left: -70vw; top: 72%;  width: 160vw; }

    /* ---- Header：logo + 汉堡 ---- */
    .header-inner { padding: 0 16px; }
    .brand-mark { width: 28px; height: 28px; margin-right: 9px; }
    .brand-name { font-size: 20px; }
    .brand-suffix { font-size: 19px; }
    .main-nav { display: none; }
    .header-cta { display: none; }
    .menu-btn { display: flex; }

    /* ---- Hero 文案 ---- */
    .hero { padding-top: 118px; }
    .hero-badge { padding: 5px 14px; }
    .hero-badge span { font-size: 12px; }
    .hero-title {
        margin-top: 20px;
        padding: 0 16px;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0 12px;
        font-size: clamp(30px, 9vw, 40px);
        line-height: 1.4;
        letter-spacing: 0;
    }
    .t-ai { font-size: clamp(36px, 10.5vw, 46px); line-height: 1; }
    .hero-sub { margin-top: 12px; padding: 0 28px; font-size: 15px; line-height: 24px; }
    .hero-actions {
        margin-top: 22px;
        width: 100%;
        padding: 0 24px;
        justify-content: center;
        gap: 12px;
    }
    .btn { width: auto; flex: 1 1 0; max-width: 173px; height: 48px; font-size: 15px; }
    .drawer-cta { flex: 0 0 auto; width: 100%; max-width: none; height: 50px; }

    /* ---- Hero 拼贴：改为竖向堆叠 ---- */
    .hero-collage {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 18px;
        width: 100%;
        height: auto;
        margin-top: 38px;
        padding: 0 16px;
        transform: none !important;
        margin-bottom: 0 !important;
    }
    .collage-wires { display: none; }
    .hero-card { width: 100%; max-width: 430px; }

    .card-workflow { height: auto; padding: 22px 18px 20px; }
    .wf-steps { margin-top: 16px; justify-content: space-between; }
    .wf-step { width: auto; }
    .wf-icon { width: 42px; height: 42px; border-radius: 12px; }
    .wf-icon .wf-svg { width: 20px; height: 20px; }
    .wf-step p { margin-top: 6px; font-size: 11px; line-height: 16px; }
    .wf-dash { width: auto; flex: 1 1 10px; min-width: 8px; height: 5px; margin: 19px 2px 0; }

    .card-kb { height: 330px; padding: 20px 20px 24px; }
    .kb-bars i { width: auto; flex: 1; }

    .card-agents { height: auto; padding: 20px; }
    .agent-name { font-size: 16px; }

    .card-dash { height: auto; padding: 20px 16px 16px; }
    .dash-panels { grid-template-columns: 1fr; gap: 8px; margin-top: 14px; }
    /* 紧凑横排：左侧 标签+数值，右侧 图表 */
    .dash-panel {
        height: auto;
        padding: 12px 14px;
        display: grid;
        grid-template: "label chart" "value chart" / 1fr auto;
        align-items: center;
        column-gap: 12px;
        row-gap: 2px;
    }
    .dash-label { grid-area: label; font-size: 13px; line-height: 18px; }
    .dash-value { grid-area: value; margin-top: 0; font-size: 24px; line-height: 30px; }
    .dash-line, .dash-bars, .dash-donut { grid-area: chart; margin: 0; }
    .dash-bars i { width: 16px; }
    .dash-bars { gap: 3px; }
    .dash-donut { width: 48px; height: 48px; }
    .dash-donut .donut-arc { width: 24.8px; height: 24.8px; margin: 3px 0 0 3.6px; }

    /* ---- 价值条 ---- */
    .value-bar { margin-top: 64px; padding: 0 16px; }
    .value-grid { grid-template-columns: 1fr; gap: 26px; padding: 26px 20px; }
    .value-item { height: auto; }
    .value-item-mid {
        border-left: none;
        border-right: none;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 26px 0;
    }

    /* ---- 通用 Section ---- */
    .section { padding-left: 16px; padding-right: 16px; }
    .section-mark { width: 40px; height: 38px; margin-bottom: 16px; }
    .section-head h2 { font-size: 30px; line-height: 38px; letter-spacing: -0.5px; }
    .section-head p { margin-top: 10px; padding: 0 12px; font-size: 15px; line-height: 24px; }
    .section-pill { margin-top: 16px; width: 64px; height: 5px; }

    .section-problems { padding-top: 64px; }
    /* 轮播：横向滚动 + snap 居中，左右露出相邻卡片 */
    .problems-grid {
        display: flex;
        margin: 32px -16px 0;
        gap: 12px;
        padding: 4px 16px 8px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .problems-grid::-webkit-scrollbar { display: none; }
    .problem-card { flex: 0 0 78%; scroll-snap-align: center; padding: 24px; }
    .problem-card h3 { font-size: 20px; white-space: normal; }
    .problem-card p { max-width: none; }
    .carousel-scrollbar { display: block; }

    .section-services { padding-top: 80px; }
    .services-grid { margin-top: 36px; grid-template-columns: 1fr; gap: 16px; }
    .service-inner { padding: 24px; }
    .service-inner h3 { font-size: 21px; }

    .section-why { padding-top: 88px; }
    .why-grid { margin-top: 32px; grid-template-columns: 1fr; gap: 16px; }
    .why-card { padding: 26px; }
    .why-num { font-size: 40px; line-height: 56px; }
    .why-desc { max-width: none; }

    /* ---- CTA ---- */
    .section-cta { padding-top: 120px; padding-bottom: 72px; }
    .cta-title { margin-top: 18px; padding: 0 8px; font-size: clamp(26px, 7.6vw, 34px); line-height: 1.45; }
    .cta-sub { margin-top: 10px; padding: 0 20px; font-size: 15px; line-height: 24px; }
    .cta-actions { margin-top: 24px; }

    /* ---- Footer ---- */
    .site-footer { min-height: auto; }
    .footer-inner { padding: 72px 20px 0; }
    .footer-logo { gap: 18px; height: auto; }
    .footer-bird { width: 46px; height: 47px; }
    .bird-fill-1 { width: 46px; height: 37px; }
    .bird-fill-3 { width: 29px; height: 21px; margin: -11px 0 0 8.5px; }
    .footer-wordmark { width: 118px; height: 34px; }
    .footer-divider { margin-top: 30px; }
    .footer-columns { margin-top: 32px; grid-template-columns: 1fr; gap: 32px; }
    .footer-col h4 { margin: 0 0 14px; }
    .footer-col li + li { margin-top: 10px; }
    .footer-social { margin-top: 22px; }
    .footer-map { height: 180px; }
    .footer-copy { margin-top: 56px; padding-bottom: 20px; font-size: 12px; text-align: center; }
}