/* =========================================================
   青合作社 Tsingcoop — 高级 / 时尚 / 灵动 视觉样式
   品牌色取自 Logo：电光青 #00FFFF / 石墨灰 #545454 / 纯白 #FEFEFE
   ========================================================= */

:root {
    --bg:        #f8fbfb;
    --bg-2:      #eef4f4;
    --surface:   rgba(255, 255, 255, 0.86);
    --surface-2: #ffffff;
    --border:    rgba(84, 84, 84, 0.14);
    --border-2:  rgba(84, 84, 84, 0.24);
    --text:      #172023;
    --text-dim:  #4e6063;
    --text-mute: #768689;
    --graphite:  #545454;
    --accent:    #009da0;
    --accent-bright: #00ffff;
    --accent-2:  #00c9ca;
    --on-accent: #063536;
    --accent-glow: rgba(0, 255, 255, 0.30);
    --shadow:    rgba(84, 84, 84, 0.14);
    --radius:    18px;
    --radius-sm: 12px;
    --maxw:      1180px;
    --ease:      cubic-bezier(.16, 1, .3, 1);
    --font:      -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", "Hiragino Sans GB", Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 背景装饰光斑 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(60vw 60vw at 12% -10%, rgba(0, 255, 255, 0.16), transparent 62%),
        radial-gradient(50vw 50vw at 100% 0%, rgba(84, 84, 84, 0.07), transparent 58%),
        radial-gradient(42vw 42vw at 50% 120%, rgba(0, 201, 202, 0.08), transparent 62%);
    z-index: -2;
    pointer-events: none;
}
body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 157, 160, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 157, 160, 0.045) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 80%);
    z-index: -1;
    pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
::selection { background: var(--accent-bright); color: var(--on-accent); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===================== 导航 ===================== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 200;
    display: flex; align-items: center; justify-content: space-between;
    min-height: 76px;
    padding: 12px 32px;
    background: rgba(248, 251, 251, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(84, 84, 84, 0.08);
    transition: background .4s var(--ease), box-shadow .4s var(--ease);
}
.nav.scrolled {
    background: rgba(248, 251, 251, 0.96);
    border-bottom-color: var(--border);
    box-shadow: 0 12px 34px -28px var(--shadow);
}
.nav .brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .5px; position: relative; z-index: 2; flex: 0 0 auto; min-width: 0; }
.nav .brand img { height: 46px; width: auto; max-width: 132px; object-fit: contain; }
.nav .brand .name { font-size: 17px; line-height: 1.15; white-space: nowrap; }
.nav .brand .name small { display: block; font-size: 11px; color: var(--text-mute); font-weight: 500; letter-spacing: 2px; margin-top: 2px; }

.nav-links { display: flex; align-items: center; gap: 22px; min-width: 0; }
.nav-links a {
    font-size: 15px; color: var(--text-dim); position: relative; padding: 6px 0;
    transition: color .3s; white-space: nowrap;
}
.nav-links > a::after {
    content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    transition: width .3s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links > a:hover::after, .nav-links > a.active::after { width: 100%; }
.nav-links > a[target="_blank"]::before {
    content: ""; position: absolute; top: 8px; right: -9px; width: 5px; height: 5px;
    border-top: 1.5px solid var(--accent); border-right: 1.5px solid var(--accent);
}
.lang-switch a::after { display: none; }

.lang-switch { display: flex; align-items: center; gap: 4px; margin-left: 8px;
    border: 1px solid var(--border-2); border-radius: 999px; padding: 3px; }
.lang-switch a { font-size: 13px; padding: 4px 12px; border-radius: 999px; color: var(--text-dim); white-space: nowrap; }
.lang-switch a.active { background: linear-gradient(120deg, var(--accent-2), var(--accent-bright)); color: var(--on-accent); font-weight: 700; }

.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; cursor: pointer; padding: 10px; position: relative; z-index: 2; border: 0; background: transparent; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; display: block; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-backdrop {
    position: fixed; inset: 0; z-index: 150;
    background: rgba(23, 32, 35, 0.28);
    opacity: 0; pointer-events: none;
    transition: opacity .3s var(--ease);
}
body.nav-open .nav-backdrop { opacity: 1; pointer-events: auto; }
body.nav-open { overflow: hidden; }

/* ===================== 按钮 ===================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 15px 30px; border-radius: 999px; font-size: 15.5px; font-weight: 700;
    cursor: pointer; border: 1px solid transparent; transition: transform .25s var(--ease), box-shadow .3s, background .3s;
    letter-spacing: .3px;
}
.btn-primary {
    background: linear-gradient(120deg, var(--accent-2), var(--accent-bright));
    color: var(--on-accent); box-shadow: 0 18px 42px -20px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-4px); box-shadow: 0 26px 52px -20px var(--accent-glow); }
.btn-ghost { background: rgba(255,255,255,.74); border-color: var(--border-2); color: var(--text); box-shadow: 0 12px 32px -28px var(--shadow); }
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-3px); box-shadow: 0 20px 44px -32px var(--shadow); }

/* ===================== Hero / 产品化视觉 ===================== */
.hero {
    min-height: auto; overflow: hidden; position: relative;
    padding: 172px 0 58px;
}
.hero-inner { width: 100%; max-width: 980px; margin: 0 auto; text-align: center; }
.hero-split { display: grid; grid-template-columns: minmax(220px, .72fr) minmax(0, 1.15fr); gap: 12px 36px; align-items: center; text-align: left; }
.hero-art { position: relative; margin: 0; justify-self: start; width: min(100%, 420px); }
.hero-art img {
    position: relative; z-index: 1; width: 100%; height: auto; max-height: 540px;
    object-fit: contain; object-position: center bottom; display: block;
    filter:
        drop-shadow(0 0 1px rgba(0, 255, 255, .42))
        drop-shadow(0 0 6px rgba(0, 230, 232, .2))
        drop-shadow(0 0 14px rgba(0, 201, 202, .1))
        drop-shadow(0 22px 28px rgba(8, 40, 42, .16));
    animation: hero-rim 5.6s ease-in-out infinite;
}
.hero-aura {
    position: absolute; inset: 12% 8% 10%; z-index: 0; pointer-events: none;
    background: radial-gradient(circle at 55% 42%, rgba(0, 255, 255, .16), rgba(0, 201, 202, .03) 46%, transparent 72%);
    filter: blur(14px); opacity: .55;
}
/* 咨询 / 招募：人像约六成，半透明，轻轻压进右侧文字留白 */
.hero-editorial .hero-split {
    grid-template-columns: minmax(150px, 252px) minmax(0, 1fr);
    gap: 0; align-items: center;
}
.hero-editorial .hero-art {
    width: min(100%, 252px); justify-self: end; z-index: 1;
    margin: 0 -42px 0 0; min-width: 0;
}
.hero-editorial .hero-art img { max-height: 324px; opacity: .86; }
.hero-editorial .hero-copy { position: relative; z-index: 2; min-width: 0; padding-left: 58px; }
.hero-copy .kicker { margin-bottom: 18px; }
.hero-copy h1 { text-align: left; }
.hero-copy .desc { margin-left: 0; margin-right: 0; text-align: left; max-width: 38em; }
.hero-copy .sub, .hero-copy .actions { margin-left: 0; margin-right: 0; text-align: left; justify-content: flex-start; }
.theory-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 6px 0 22px; }
.theory-btn {
    display: inline-flex; align-items: center; padding: 12px 18px; border-radius: 999px;
    border: 1px solid var(--border-2); background: rgba(255,255,255,.9); color: var(--text);
    font-weight: 750; letter-spacing: .02em;
    box-shadow: 0 14px 30px -22px var(--shadow);
    transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.theory-btn:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 18px 36px -18px var(--accent-glow); }
@keyframes hero-rim {
    0%, 100% {
        filter:
            drop-shadow(0 0 1px rgba(0, 255, 255, .32))
            drop-shadow(0 0 5px rgba(0, 230, 232, .14))
            drop-shadow(0 0 12px rgba(0, 201, 202, .06))
            drop-shadow(0 22px 28px rgba(8, 40, 42, .16));
    }
    50% {
        filter:
            drop-shadow(0 0 2.5px rgba(0, 255, 255, .95))
            drop-shadow(0 0 11px rgba(0, 255, 255, .62))
            drop-shadow(0 0 24px rgba(0, 201, 202, .4))
            drop-shadow(0 22px 28px rgba(8, 40, 42, .16));
    }
}
@media (prefers-reduced-motion: reduce) {
    .hero-art img { animation: none; }
}
.hero .kicker {
    display: inline-flex; align-items: center; gap: 10px;
    border: 1px solid var(--border-2); border-radius: 999px; padding: 8px 18px;
    font-size: 13px; color: var(--accent); letter-spacing: 1.2px; margin-bottom: 30px;
    background: rgba(0, 255, 255, 0.12); box-shadow: 0 12px 30px -24px var(--accent-glow);
}
.hero .kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 16px var(--accent-bright); animation: pulse 2s infinite; }
.hero h1 {
    font-size: clamp(36px, 5.5vw, 68px); line-height: 1.12; font-weight: 800; letter-spacing: -1px;
    margin-bottom: 22px;
}
.hero h1 .hero-line {
    display: block; font-size: .4em; font-weight: 600; letter-spacing: .12em;
    line-height: 1.45; color: var(--text-dim); margin-bottom: .7em;
}
.hero h1 .grad {
    display: block; margin-top: 0;
    background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 55%, var(--accent-bright));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-theory {
    width: 100%; max-width: 820px; margin: 8px auto 32px;
    font-size: clamp(16px, 1.7vw, 20px); font-weight: 600; letter-spacing: .12em;
    line-height: 1.7; color: var(--text-dim);
}
.hero .sub {
    width: 100%; font-size: clamp(19px, 2.1vw, 25px); font-weight: 700; color: var(--text);
    line-height: 1.5; margin: 0 auto 24px; max-width: 900px; overflow-wrap: break-word;
}
.hero .desc { width: 100%; font-size: 18px; line-height: 1.8; color: var(--text-dim); max-width: 780px; margin: 0 auto 42px; overflow-wrap: break-word; }
.hero .desc.hero-biz { margin-bottom: 18px; color: var(--text); font-weight: 650; line-height: 1.65; }
.hero .actions { width: 100%; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-marks { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 0 auto 28px; max-width: 860px; }
.hero-mark {
    width: 108px; min-height: 108px; border-radius: 28px; border: 1px solid var(--border);
    background: rgba(255,255,255,.82); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
    box-shadow: 0 18px 40px -30px var(--shadow); transition: transform .35s var(--ease), border-color .35s;
}
.hero-mark i {
    width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
    background: linear-gradient(140deg, #e7ffff, #ffffff); color: var(--accent); font-style: normal; font-weight: 800;
    box-shadow: inset 0 0 0 1px rgba(0,201,202,.35);
}
.hero-mark b { font-size: 13px; font-weight: 700; letter-spacing: .02em; }
.hero-mark:hover { transform: translateY(-6px); border-color: var(--accent-2); }
.hero-mark.is-agent i { background: #102326; color: #7ef6f6; }
.hero-visual { width: 100%; max-width: 1080px; margin: 48px auto 0; position: relative; perspective: 1200px; }
.hero-visual::before {
    content: ""; position: absolute; inset: -12% -8% auto; height: 80%;
    background: radial-gradient(ellipse at 50% 50%, rgba(0,255,255,.18), transparent 64%);
    filter: blur(12px); pointer-events: none;
}
.demo-window {
    position: relative; overflow: hidden; width: 100%; max-width: 100%;
    background: rgba(255,255,255,.96);
    border: 1px solid var(--border); border-radius: 30px;
    box-shadow: 0 36px 95px -48px var(--shadow), 0 0 0 1px rgba(255,255,255,.55) inset;
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.demo-window::after {
    content: ""; position: absolute; top: 0; bottom: 0; width: 36%; left: -45%;
    background: linear-gradient(100deg, transparent, rgba(0,255,255,.13), transparent);
    transform: skewX(-14deg); pointer-events: none; animation: sweep 5.8s ease-in-out infinite;
}
.demo-header {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 18px 24px; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, #fbffff, #f5fbfb);
}
.demo-title { font-size: 14px; font-weight: 800; letter-spacing: .4px; }
.demo-live { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--accent); font-weight: 700; }
.demo-live i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 14px var(--accent-bright); animation: pulse 1.6s infinite; }
.demo-tabs { display: flex; gap: 8px; padding: 14px 24px; border-bottom: 1px solid var(--border); }
.demo-tabs span {
    padding: 9px 18px; border-radius: 999px; color: var(--text-dim); font-size: 13.5px; font-weight: 700;
    border: 1px solid var(--border); background: rgba(255,255,255,.7); cursor: pointer; transition: .3s var(--ease);
}
.demo-tabs span.active {
    color: var(--on-accent); border-color: transparent;
    background: linear-gradient(120deg, var(--accent-2), var(--accent-bright));
    box-shadow: 0 12px 28px -18px var(--accent-glow);
}
.demo-body { display: grid; grid-template-columns: 285px minmax(0, 1fr); min-height: 360px; }
.demo-body > * { min-width: 0; }
.demo-side { padding: 24px; border-right: 1px solid var(--border); background: #fbffff; }
.demo-side h4, .demo-flow h4 { font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-mute); margin-bottom: 16px; }
.demo-task {
    border: 1px solid var(--border); border-radius: 16px; padding: 16px; margin-bottom: 12px; background: #ffffff;
    transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.demo-task.active { border-color: var(--accent-2); box-shadow: 0 16px 35px -26px var(--accent-glow); }
.demo-task:hover { transform: translateY(-3px); border-color: var(--accent-2); }
.demo-task strong { display: block; color: var(--text); font-size: 14.5px; margin-bottom: 4px; }
.demo-task span { color: var(--text-mute); font-size: 12.5px; }
.demo-flow { padding: 28px; position: relative; }
.demo-flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 22px; }
.demo-flow-step {
    min-height: 116px; position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center;
    border: 1px solid var(--border); border-radius: 18px; background: linear-gradient(180deg, #ffffff, #f7fbfb);
}
.demo-flow-step:not(:last-child)::after {
    content: "→"; position: absolute; right: -14px; top: 50%; transform: translateY(-50%); z-index: 2;
    color: var(--accent); font-size: 18px; font-weight: 700;
}
.demo-flow-step em { font-style: normal; color: var(--accent-bright); font-size: 12px; font-weight: 800; letter-spacing: 2px; margin-bottom: 6px; }
.demo-flow-step span { color: var(--text); font-size: 14px; font-weight: 700; }
.demo-progress { height: 7px; overflow: hidden; border-radius: 999px; background: rgba(84,84,84,.08); margin-bottom: 14px; }
.demo-progress span { display: block; height: 100%; width: 72%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-bright)); box-shadow: 0 0 16px rgba(0,255,255,.45); }
.demo-status { display: flex; align-items: center; gap: 8px; color: var(--text-dim); font-size: 13.5px; font-weight: 600; margin-bottom: 20px; }
.demo-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 12px var(--accent-bright); animation: pulse 1.7s infinite; }
.demo-metrics { display: flex; gap: 10px; flex-wrap: wrap; }
.demo-metrics span {
    padding: 8px 13px; border-radius: 999px; color: var(--text-dim); font-size: 12.5px; font-weight: 700;
    border: 1px solid var(--border); background: #ffffff;
}

/* ===================== 通用 section ===================== */
section { padding: 100px 0; position: relative; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.section-head .eyebrow { color: var(--accent); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px; display: block; }
.section-head h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: -.5px; margin-bottom: 14px; }
.section-head p { color: var(--text-dim); font-size: 17px; }

/* ===================== 卡片 / 网格 ===================== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 34px 30px; position: relative; overflow: hidden;
    box-shadow: 0 18px 45px -32px var(--shadow);
    transition: transform .4s var(--ease), border-color .4s, background .4s, box-shadow .4s;
}
.card::before {
    content: ""; position: absolute; inset: 0; border-radius: inherit;
    background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), rgba(0, 255, 255, 0.10), transparent 60%);
    opacity: 0; transition: opacity .4s;
}
.card:hover { transform: translateY(-6px); border-color: var(--accent-2); background: var(--surface-2); box-shadow: 0 26px 60px -34px var(--shadow); }
.card:hover::before { opacity: 1; }
.card .card-no {
    position: absolute; right: 24px; top: 14px; color: rgba(84,84,84,.10);
    font-size: 52px; line-height: 1; font-weight: 800; letter-spacing: -2px;
}
.card .ico {
    width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
    background: linear-gradient(135deg, rgba(0,255,255,.22), rgba(84,84,84,.08));
    border: 1px solid var(--border-2); margin-bottom: 24px;
    color: var(--accent); font-size: 14px; font-weight: 800; letter-spacing: 1px;
}
.card h3 { font-size: 22px; margin-bottom: 13px; font-weight: 800; }
.card p { color: var(--text-dim); font-size: 15.5px; }

/* ===================== 案例 ===================== */
.case-card {
    background: linear-gradient(160deg, #ffffff, #f4fafa);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 30px;
    position: relative; overflow: hidden;
    box-shadow: 0 18px 45px -34px var(--shadow);
    transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
    display: flex; flex-direction: column;
}
.case-card::after {
    content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent-bright), var(--accent-2));
}
.case-card:hover { transform: translateY(-6px); border-color: var(--accent-2); box-shadow: 0 28px 65px -36px var(--shadow); }
.case-card .case-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.case-card .case-tag {
    display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: 1px;
    padding: 5px 13px; border-radius: 999px;
    background: rgba(0, 255, 255, 0.14); color: var(--accent);
    border: 1px solid rgba(0, 157, 160, 0.28);
}
.case-card .case-no { font-size: 15px; color: var(--accent); font-weight: 700; letter-spacing: 2px; }
.case-card h3 { font-size: 23px; font-weight: 800; margin-bottom: 14px; }
.case-card p { color: var(--text-dim); font-size: 15.5px; margin-bottom: 24px; flex: 1; }
.case-card .case-link {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--accent); font-weight: 600; font-size: 15px; transition: gap .3s var(--ease);
}
.case-card .case-link:hover { gap: 12px; }

/* ===================== 咨询引导 ===================== */
.guide-wrap { display: grid; grid-template-columns: .95fr 1.05fr; gap: 24px; max-width: 1020px; margin: 0 auto; }
.guide-mail {
    background: linear-gradient(150deg, #ffffff, #eafafa);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 38px 34px;
    position: relative; overflow: hidden;
    box-shadow: 0 18px 45px -34px var(--shadow);
    display: flex; flex-direction: column; align-items: flex-start;
}
.guide-mail::after {
    content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent-bright), var(--accent-2));
}
.guide-mail h3 { font-size: 24px; font-weight: 800; margin-bottom: 14px; }
.guide-mail .mail { font-size: 18px; font-weight: 700; color: var(--accent); margin-bottom: 22px; word-break: break-all; }
.guide-mail .mail:hover { text-decoration: underline; }
.guide-mail .tip { color: var(--text-mute); font-size: 13.5px; margin-top: 14px; }
.guide-types { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.guide-types .type-label { width: 100%; font-size: 13px; color: var(--text-mute); }
.type-chip {
    display: inline-block;
    font-size: 13px; font-weight: 600; padding: 8px 16px; border-radius: 999px;
    background: #fff; color: var(--text-dim);
    border: 1px solid var(--border-2);
    cursor: pointer;
    font-family: inherit;
}
.type-chip.is-on {
    background: rgba(0, 255, 255, 0.14); color: var(--accent);
    border-color: rgba(0, 157, 160, 0.45);
}
.guide-card {
    background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px 34px; box-shadow: 0 18px 45px -34px var(--shadow);
}
.guide-item { display: flex; gap: 18px; padding: 15px 0; border-bottom: 1px dashed var(--border); }
.guide-item:last-child { border-bottom: none; }
.guide-item .no { color: var(--accent); font-weight: 800; font-size: 15px; letter-spacing: 2px; padding-top: 2px; }
.guide-item strong { display: block; font-size: 16.5px; margin-bottom: 3px; }
.guide-item p { color: var(--text-dim); font-size: 14.5px; }
@media (max-width: 900px) { .guide-wrap { grid-template-columns: 1fr; } }

/* ===================== 关于 / 数字 ===================== */
.about-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.about-wrap .lead { font-size: 21px; color: var(--text); margin-bottom: 20px; font-weight: 700; }
.about-wrap p.body { color: var(--text-dim); margin-bottom: 24px; }
.about-model { color: var(--text); font-size: 15px; font-weight: 600; border-left: 2px solid var(--accent); padding-left: 12px; margin-bottom: 12px; }
.about-points { display: grid; gap: 4px; }
.about-point { display: flex; gap: 14px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); }
.about-point > span { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 1px; padding-top: 4px; }
.about-point strong { display: block; color: var(--text); font-size: 15.5px; margin-bottom: 3px; }
.about-point p { color: var(--text-dim); font-size: 14px; line-height: 1.6; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.stat {
    background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 24px 18px; text-align: center; box-shadow: 0 16px 40px -30px var(--shadow);
}
.stat .num { font-size: 38px; font-weight: 800;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .lbl { font-size: 13.5px; color: var(--text-dim); margin-top: 6px; }

/* ===================== 招募角色 ===================== */
.role-card {
    background: linear-gradient(160deg, #ffffff, #f4fafa);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 32px;
    position: relative; box-shadow: 0 18px 45px -34px var(--shadow);
    transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.role-card:hover { transform: translateY(-6px); border-color: var(--accent-2); box-shadow: 0 28px 65px -36px var(--shadow); }
.role-card .idx { font-size: 15px; color: var(--accent); font-weight: 700; letter-spacing: 2px; }
.role-card h3 { font-size: 23px; margin: 12px 0 16px; font-weight: 700; }
.role-card p { color: var(--text-dim); font-size: 15.5px; margin-bottom: 24px; }
.role-card .apply {
    display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; font-size: 15px;
}
.role-card .apply:hover { gap: 12px; }

/* ===================== 动态 ===================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
    background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
    box-shadow: 0 18px 45px -34px var(--shadow);
    transition: transform .4s var(--ease), border-color .4s, box-shadow .4s; display: flex; flex-direction: column;
    min-height: 100%;
}
.news-card:hover { transform: translateY(-6px); border-color: var(--accent-2); box-shadow: 0 28px 65px -38px var(--shadow); }
.news-card .cover {
    aspect-ratio: 16 / 9; height: auto; background: linear-gradient(145deg, #e7fbfb, #ffffff 55%, #f3f6f6);
    display: block; color: var(--accent); position: relative; overflow: hidden;
}
.news-card .cover img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; object-position: center; z-index: 1; display: block;
}
.news-card .cover > span { display: none; }
.news-card .cover.cover-fallback { display: grid; place-items: center; min-height: 140px; }
.news-card .cover.cover-fallback > span {
    display: inline-block;
    font-size: 22px; font-weight: 800; letter-spacing: 1px; color: var(--on-accent);
    background: linear-gradient(120deg, var(--accent-2), var(--accent-bright));
    border-radius: 999px; padding: 10px 16px; position: relative; z-index: 1;
}
.news-card .cover::after {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(circle at 70% 20%, rgba(0,255,255,.22), transparent 60%);
}
.news-card .body { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.news-card .date { font-size: 12px; color: var(--text-mute); margin-bottom: 8px; letter-spacing: .3px; }
.news-card h3 {
    font-size: 17px; margin-bottom: 10px; font-weight: 700; line-height: 1.4;
    height: 2.8em; overflow: hidden;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.news-card p {
    color: var(--text-dim); font-size: 14px; line-height: 1.55; flex: 1;
    height: 3.1em; overflow: hidden;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.news-card .more { margin-top: 14px; color: var(--accent); font-size: 14px; font-weight: 600; }
.news-pager { display: flex; justify-content: center; gap: 8px; margin-top: 36px; flex-wrap: wrap; }
.news-pager a, .news-pager span {
    min-width: 40px; height: 40px; padding: 0 12px; border-radius: 999px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-2); background: #fff; font-size: 14px; font-weight: 700;
}
.news-pager .is-on { background: linear-gradient(120deg, var(--accent-2), var(--accent-bright)); color: var(--on-accent); border-color: transparent; }
.source-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 0 auto 32px; max-width: 980px; }
.source-pair { display: inline-flex; align-items: stretch; }
.source-chip {
    display: inline-flex; align-items: center;
    border: 1px solid var(--border-2); background: #fff; color: var(--text-dim);
    border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 600;
    cursor: pointer; font-family: inherit;
}
.source-pair .source-chip { border-radius: 999px 0 0 999px; }
.source-chip.is-on { border-color: var(--accent); color: var(--accent); background: rgba(0, 255, 255, 0.14); }
.source-chip:disabled { opacity: 0.45; cursor: default; }
.source-home {
    display: inline-flex; align-items: center; padding: 0 10px;
    border: 1px solid var(--border-2); border-left: 0; border-radius: 0 999px 999px 0;
    background: #fff; color: var(--accent); font-size: 13px;
}

/* 详情页 */
.news-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.article { max-width: 780px; margin: 0 auto; }
.article-cover { margin: 0 0 28px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: 0 18px 45px -34px var(--shadow); }
.article-cover img { width: 100%; display: block; }
.article .date { color: var(--text-mute); margin-bottom: 12px; }
.article h1 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 24px; line-height: 1.2; }
.article .content { font-size: 17px; color: var(--text-dim); }
.article .content p { margin-bottom: 18px; }

/* ===================== 咨询 ===================== */
.consult-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }
.consult-box {
    background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 40px; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center;
    box-shadow: 0 18px 45px -34px var(--shadow);
}
.consult-box h3 { font-size: 20px; margin-bottom: 18px; }
.consult-box .qr { width: 200px; height: 200px; border-radius: 16px; border: 1px solid var(--border-2); object-fit: cover; margin-bottom: 18px; }
.consult-box .tip { color: var(--text-dim); font-size: 14.5px; }
.consult-box .mail { font-size: 19px; font-weight: 700; color: var(--accent); word-break: break-all; }

/* ===================== CTA ===================== */
.cta {
    background: linear-gradient(120deg, rgba(255,255,255,.92), rgba(0,255,255,.13));
    border: 1px solid var(--border-2); border-radius: 28px; padding: 70px 40px; text-align: center;
    box-shadow: 0 26px 70px -42px var(--shadow);
}
.cta h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; margin-bottom: 16px; }
.cta p { color: var(--text-dim); font-size: 18px; margin-bottom: 30px; }

/* ===================== 页脚 ===================== */
.footer { border-top: 1px solid var(--border); padding: 60px 0 36px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer .brand img { height: 42px; margin-bottom: 16px; }
.footer p { color: var(--text-dim); font-size: 14.5px; max-width: 320px; }
.footer h4 { font-size: 14px; letter-spacing: 1px; color: var(--text-mute); text-transform: uppercase; margin-bottom: 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { color: var(--text-dim); font-size: 15px; transition: color .3s; }
.footer ul li a:hover { color: var(--accent); }
.footer-address span { display: block; margin-bottom: 4px; font-size: 12px; letter-spacing: .08em; color: var(--text-mute); }
.footer-address a { display: inline-block; max-width: 280px; line-height: 1.55; }
.consult-address { margin-top: 22px; }
.consult-address span { display: block; margin-bottom: 6px; font-size: 13px; letter-spacing: .08em; color: var(--text-mute); }
.consult-address a { color: var(--text); font-size: 15.5px; line-height: 1.6; }
.footer .bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--text-mute); font-size: 13.5px; }

/* ===================== 后台 ===================== */
.admin-body { background: var(--bg-2); min-height: 100vh; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: 100%; max-width: 400px; background: var(--surface-2); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 40px; box-shadow: 0 24px 65px -38px var(--shadow); }
.login-card h1 { font-size: 24px; margin-bottom: 6px; }
.login-card .sub { color: var(--text-dim); margin-bottom: 26px; font-size: 14.5px; }
.form-card {
    max-width: 680px; margin: 0 auto; background: var(--surface-2);
    border: 1px solid var(--border); border-radius: 26px; padding: 44px;
    box-shadow: 0 30px 75px -48px var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; color: var(--text-dim); margin-bottom: 8px; }
.field input, .field textarea, .field select {
    width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border-2);
    background: #ffffff; color: var(--text); font-size: 15px; font-family: inherit; transition: border-color .3s, box-shadow .3s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0,255,255,.14); }
.field textarea { min-height: 140px; resize: vertical; }
.choice-group { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.choice-card { position: relative; display: block; cursor: pointer; }
.choice-card input { position: absolute; opacity: 0; pointer-events: none; }
.choice-card .choice-body {
    display: block; height: 100%; padding: 15px 16px; border: 1px solid var(--border-2); border-radius: 14px;
    background: var(--surface); transition: border-color .3s, background .3s, box-shadow .3s, transform .3s var(--ease);
}
.choice-card strong { display: block; color: var(--text); font-size: 14.5px; line-height: 1.45; margin-bottom: 5px; }
.choice-card small { display: block; color: var(--text-mute); font-size: 12.5px; line-height: 1.45; }
.choice-card:hover .choice-body { transform: translateY(-2px); border-color: var(--accent); }
.choice-card input:checked + .choice-body {
    border-color: var(--accent); background: rgba(0,255,255,.09); box-shadow: 0 12px 28px -18px var(--accent-glow);
}
.alert { background: rgba(214, 69, 69, .08); border: 1px solid rgba(214,69,69,.28); color: #a93636; padding: 12px 14px; border-radius: 10px; margin-bottom: 18px; font-size: 14px; }

.admin-bar { display: flex; align-items: center; justify-content: space-between; padding: 16px 28px; border-bottom: 1px solid var(--border); background: rgba(248,251,251,.88); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 50; }
.admin-bar .brand { font-weight: 700; display: flex; align-items: center; gap: 10px; }
.admin-bar .brand img { height: 28px; }
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 65px); }
.admin-side { border-right: 1px solid var(--border); padding: 24px 14px; }
.admin-side a { display: block; padding: 11px 16px; border-radius: 10px; color: var(--text-dim); margin-bottom: 6px; font-size: 15px; transition: .3s; }
.admin-side a:hover, .admin-side a.active { background: var(--surface-2); color: var(--text); }
.admin-main { padding: 32px 36px; }
.admin-main h1 { font-size: 26px; margin-bottom: 24px; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--border); font-size: 14.5px; }
.admin-table th { color: var(--text-mute); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .5px; }
.admin-table tr:hover td { background: var(--surface); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-on { background: rgba(0,255,255,.16); color: var(--accent); }
.badge-off { background: rgba(84,84,84,.08); color: var(--text-mute); }
.table-actions a { margin-right: 12px; color: var(--accent); font-size: 14px; }
.table-actions a.danger { color: #c43d3d; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; gap: 14px; flex-wrap: wrap; }
.thumb { width: 64px; height: 44px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border-2); }
.lang-tabs { display: flex; gap: 10px; margin-bottom: 22px; }
.lang-tab { padding: 8px 18px; border-radius: 999px; border: 1px solid var(--border-2); font-size: 14px; cursor: pointer; color: var(--text-dim); }
.lang-tab.active { background: linear-gradient(120deg, var(--accent-2), var(--accent-bright)); color: var(--on-accent); font-weight: 700; border-color: transparent; }
.lang-pane { display: none; }
.lang-pane.active { display: block; }

/* ===================== 动画 ===================== */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
@keyframes sweep {
    0%, 18% { left: -45%; opacity: 0; }
    30% { opacity: 1; }
    68% { left: 112%; opacity: 1; }
    84%, 100% { left: 112%; opacity: 0; }
}
@keyframes grow { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

@media (prefers-reduced-motion: reduce) {
    .js .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ===================== 响应式 ===================== */
@media (max-width: 1180px) {
    .nav { padding: 8px 20px; min-height: 68px; }
    .nav .brand img { height: 40px; max-width: 108px; }
    .nav .brand .name { font-size: 15px; }
    .nav-links {
        position: fixed; top: 76px; right: 16px; left: 16px; z-index: 201;
        flex-direction: column; align-items: stretch; gap: 4px;
        background: #ffffff;
        border: 1px solid rgba(84, 84, 84, 0.12);
        border-radius: 20px; padding: 10px;
        box-shadow: 0 28px 60px -24px rgba(23, 32, 35, 0.35);
        transform: translateY(-8px); opacity: 0; pointer-events: none;
        transition: .28s var(--ease);
        max-height: calc(100vh - 96px); max-height: calc(100dvh - 96px); overflow: auto;
    }
    .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
    .nav-links > a {
        padding: 14px 16px; border-radius: 12px; font-size: 16px; font-weight: 600;
    }
    .nav-links > a::after { display: none; }
    .nav-links > a.active { background: rgba(0, 255, 255, 0.18); color: var(--text); }
    .lang-switch { margin: 8px 4px 4px; align-self: flex-start; flex-shrink: 0; }
    .nav-toggle { display: flex; }
    .hero h1 { font-size: clamp(28px, 4.2vw, 46px); line-height: 1.24; letter-spacing: -.5px; margin-bottom: 18px; }
    .hero h1 .hero-line { font-size: .46em; letter-spacing: .08em; margin-bottom: .85em; line-height: 1.55; }
    .hero-split { grid-template-columns: minmax(150px, .62fr) minmax(0, 1.2fr); gap: 10px 22px; }
    .hero-art { width: min(100%, 280px); justify-self: start; }
    .hero-art img { max-height: 430px; }
    .theory-links { gap: 8px; margin-bottom: 16px; }
    .theory-btn { padding: 10px 14px; font-size: 14px; }
    .hero-copy .desc, .hero-copy .sub { line-height: 1.75; }
    .hero h1 .grad { margin-top: 0; }
    .hero-theory { margin-top: 14px; margin-bottom: 36px; line-height: 1.85; letter-spacing: .08em; }
    .hero .sub { margin-bottom: 28px; line-height: 1.6; }
    .hero .desc { line-height: 1.9; }
    .hero .desc.hero-biz { margin-bottom: 22px; }
    .hero-editorial .hero-split { grid-template-columns: minmax(108px, 168px) minmax(0, 1fr); }
    .hero-editorial .hero-art { width: min(100%, 168px); margin-right: -28px; }
    .hero-editorial .hero-art img { max-height: 258px; }
    .hero-editorial .hero-copy { padding-left: 42px; }
}
@media (max-width: 900px) {
    .grid-3, .news-grid { grid-template-columns: 1fr 1fr; }
    .about-wrap, .consult-wrap { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .admin-layout { grid-template-columns: 1fr; }
    .admin-side { display: flex; gap: 8px; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); }
    .hero-visual { margin-top: 58px; }
    .demo-body { grid-template-columns: 1fr; min-height: auto; }
    .demo-side { border-right: none; border-bottom: 1px solid var(--border); }
    .demo-flow-grid { grid-template-columns: repeat(2, 1fr); }
    .demo-flow-step:not(:last-child)::after { content: none; }
}
@media (max-width: 680px) {
    .nav { padding: 8px 16px; }
    .grid-3, .news-grid, .grid-2, .stats, .footer-grid, .choice-group, .form-grid { grid-template-columns: 1fr; }
    section { padding: 76px 0; }
    .container { padding: 0 18px; }
    .hero { padding: 148px 0 42px; }
    .hero-split { grid-template-columns: 1fr; text-align: center; }
    .hero-art { max-width: 280px; width: 100%; margin: 8px auto 0; justify-self: center; order: -1; }
    .hero-editorial .hero-split { grid-template-columns: 1fr; }
    .hero-editorial .hero-art { max-width: 168px; width: min(100%, 168px); margin: 8px auto 0; justify-self: center; }
    .hero-editorial .hero-art img { max-height: 258px; }
    .hero-editorial .hero-copy { padding-left: 0; }
    .hero-copy h1, .hero-copy .desc, .hero-copy .sub, .hero-copy .actions, .theory-links { text-align: center; justify-content: center; margin-left: auto; margin-right: auto; }
    .hero h1 { font-size: 28px; line-height: 1.2; letter-spacing: 0; overflow-wrap: break-word; }
    .hero h1 .hero-line { font-size: .55em; letter-spacing: .04em; margin-bottom: .45em; }
    .hero h1 .grad { margin-top: 0; }
    .hero-theory { margin-bottom: 28px; letter-spacing: .04em; }
    .hero .sub { font-size: 16px; line-height: 1.65; margin-bottom: 22px; }
    .hero .actions { align-items: center; }
    .hero .actions .btn { flex: 1 1 145px; padding: 14px 18px; font-size: 14px; }
    .hero .desc { font-size: 15.5px; margin-bottom: 30px; }
    .demo-window { border-radius: 22px; }
    .demo-header, .demo-tabs { padding-left: 16px; padding-right: 16px; }
    .demo-tabs { overflow-x: auto; }
    .demo-side, .demo-flow { padding: 20px 16px; }
    .demo-flow-grid { grid-template-columns: 1fr; }
    .demo-flow-step { min-height: 76px; }
    .form-card { padding: 26px 20px; border-radius: 20px; }
}

/* ===== 新闻引用块（真实来源标注）===== */
.cite-box {
    margin-top: 34px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-bright);
    border-radius: var(--radius);
    padding: 22px 26px;
    box-shadow: 0 18px 45px -34px var(--shadow);
}
.cite-box .cite-line {
    color: var(--text-mute);
    font-size: 14px;
    line-height: 1.8;
}
.cite-box .cite-line a { color: var(--accent); }

/* ===== TSING-AI-TOOLS 工具详情 ===== */
.tool-detail {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 34px;
    align-items: stretch;
    margin-bottom: 34px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 44px;
    box-shadow: 0 18px 45px -34px var(--shadow);
    position: relative;
    overflow: hidden;
}
.tool-detail::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-bright), var(--accent-2));
}
.tool-detail.flip { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); }
.tool-detail.flip .tool-info { order: 2; }
.tool-detail.flip .tool-effects { order: 1; }
.tool-code {
    display: inline-block;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .14em;
    color: var(--accent);
    background: rgba(0, 255, 255, .10);
    border: 1px solid rgba(0, 255, 255, .35);
    border-radius: 8px;
    padding: 5px 12px;
    margin-right: 10px;
}
.tool-tagline { font-size: 13.5px; color: var(--text-mute); letter-spacing: .06em; }
.tool-info h3 { font-size: 27px; font-weight: 800; margin: 16px 0 4px; }
.tool-en { color: var(--text-mute); font-size: 14.5px; margin-bottom: 22px; }
.tool-block { margin-bottom: 18px; }
.tool-block strong {
    display: inline-block;
    font-size: 13px;
    letter-spacing: .1em;
    color: var(--accent);
    margin-bottom: 8px;
}
.tool-block p { color: var(--text-dim); line-height: 1.85; font-size: 15px; }
.tool-block ul { list-style: none; padding: 0; margin: 0; }
.tool-block li {
    position: relative;
    padding-left: 20px;
    color: var(--text-dim);
    line-height: 1.85;
    font-size: 15px;
    margin-bottom: 6px;
}
.tool-block li::before {
    content: "";
    position: absolute;
    left: 2px; top: .72em;
    width: 7px; height: 7px;
    border-radius: 2px;
    background: linear-gradient(120deg, var(--accent-2), var(--accent-bright));
    transform: rotate(45deg);
}
.tool-effects {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    background: rgba(255, 255, 255, .72);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px 32px;
}
.tool-effects-label {
    font-size: 12.5px;
    letter-spacing: .16em;
    color: var(--text-mute);
    margin-bottom: 4px;
}
.tool-metric { display: flex; align-items: baseline; gap: 12px; border-bottom: 1px dashed var(--border-2); padding-bottom: 12px; }
.tool-metric:last-child { border-bottom: 0; padding-bottom: 0; }
.tool-metric em {
    font-style: normal;
    font-size: 26px;
    font-weight: 800;
    min-width: 130px;
    background: linear-gradient(100deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tool-metric span { color: var(--text-mute); font-size: 14px; }
@media (max-width: 900px) {
    .tool-detail, .tool-detail.flip { grid-template-columns: 1fr; padding: 28px 24px; }
    .tool-detail.flip .tool-info { order: 1; }
    .tool-detail.flip .tool-effects { order: 2; }
}

/* ===== 首页演示面板：真实工具运行效果 ===== */
.demo-pane { display: none; }
.demo-pane.active { display: contents; }
#pane-agent.active { display: block; grid-column: 1 / -1; }
#pane-agent .demo-flow { min-height: 320px; }
.demo-tabs span { user-select: none; }
.fx-tool { cursor: pointer; }
.demo-flow-step { transition: border-color .4s, box-shadow .4s, transform .4s var(--ease); }
.demo-flow-step.lit { border-color: rgba(0, 255, 255, .65); box-shadow: 0 10px 26px -18px var(--accent-glow); transform: translateY(-3px); }
.demo-progress span.run { animation: fx-progress 4.8s var(--ease) forwards; }
@keyframes fx-progress { from { width: 5%; } to { width: 96%; } }
.fx-tools { display: flex; flex-direction: column; gap: 10px; }
.fx-run { display: flex; flex-direction: column; height: 100%; }
.fx-terminal {
    flex: 1;
    background: #0d1f22;
    border: 1px solid rgba(0, 255, 255, .18);
    border-radius: 14px;
    padding: 18px 20px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 12.8px;
    line-height: 2.05;
    color: #b9e8ec;
    min-height: 190px;
    overflow: hidden;
    position: relative;
}
.fx-terminal::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 62%, rgba(13, 31, 34, .55));
    pointer-events: none;
}
.fx-line { display: block; white-space: nowrap; opacity: 0; transform: translateY(5px); transition: opacity .35s, transform .35s; }
.fx-line.show { opacity: 1; transform: none; }
.fx-line .fx-prompt { color: var(--accent-bright); margin-right: 8px; }
.fx-line.fx-ok { color: #7ef0c1; }
.fx-result { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 14px; }
.fx-chip {
    font-size: 12.8px;
    font-weight: 700;
    color: var(--text);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 7px 15px;
    box-shadow: 0 8px 20px -16px var(--shadow);
    opacity: 0;
    transform: translateY(7px) scale(.94);
    transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.fx-chip.show { opacity: 1; transform: none; }
.fx-chip b { color: var(--accent); font-weight: 800; margin-right: 5px; }
.fx-agent-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
@media (max-width: 640px) { .fx-agent-steps { grid-template-columns: repeat(2, 1fr); } }

/* ===================== 社区成员 / 生态企业 ===================== */
.eco-section { padding-bottom: 72px; }
.eco-org-head { margin-top: 72px; }
.people-stage { position: relative; }
.people-viewport {
    overflow: hidden;
    cursor: grab;
    padding: 36px 0 8px;
    outline: none;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.people-viewport.is-drag { cursor: grabbing; }
.people-track {
    display: flex;
    align-items: center;
    width: max-content;
    will-change: transform;
}
.people-set { display: flex; align-items: center; gap: 18px; padding-right: 18px; }
.person {
    appearance: none;
    border: 0;
    background: transparent;
    padding: 10px 4px;
    cursor: pointer;
    flex: none;
    --near: 0;
}
.person .avatar {
    width: 104px;
    height: 104px;
    border-radius: 50%;
    overflow: hidden;
    display: grid;
    place-items: center;
    background: #fff;
    border: 2px solid rgba(84, 84, 84, 0.12);
    box-shadow: 0 10px 24px -18px rgba(23, 32, 35, 0.5);
    transform: scale(calc(0.72 + var(--near) * 0.46));
    opacity: calc(0.5 + var(--near) * 0.5);
    transition: transform .35s var(--ease), opacity .35s var(--ease), border-color .35s, box-shadow .35s;
}
.person.is-on .avatar {
    border-color: var(--accent-2);
    box-shadow: 0 18px 40px -16px rgba(0, 157, 160, 0.75);
}
.person .avatar img,
.person .avatar svg { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; }
.people-hint {
    text-align: center;
    color: var(--text-mute);
    font-size: 13px;
    letter-spacing: 1px;
    margin: 8px 0 18px;
}
.person-detail { text-align: center; min-height: 78px; }
.person-detail h3 { font-size: 26px; font-weight: 800; letter-spacing: -0.3px; }
.person-detail p { color: var(--text-dim); font-size: 16px; margin-top: 4px; }
.eco-arrow {
    position: absolute;
    top: 78px;
    z-index: 2;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border-2);
    background: rgba(255,255,255,.92);
    color: var(--text);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 10px 24px -16px var(--shadow);
}
.eco-arrow.prev { left: 0; }
.eco-arrow.next { right: 0; }
.eco-arrow:hover { border-color: var(--accent); color: var(--accent); }

.logo-viewport {
    overflow: hidden;
    cursor: grab;
    margin: 0 0 14px;
    padding: 6px 0;
}
.logo-viewport.is-drag { cursor: grabbing; }
.logo-track { display: flex; width: max-content; will-change: transform; }
.logo-set { display: flex; gap: 14px; padding-right: 14px; }
.logo-tile {
    width: 176px;
    height: 84px;
    flex: none;
    border-radius: 16px;
    background: rgba(255,255,255,.92);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px 12px;
    user-select: none;
}
.logo-tile img { height: 34px; width: auto; max-width: 128px; object-fit: contain; }
.person.is-on .avatar { animation: avatarPulse 2.4s ease-in-out infinite; }
@keyframes avatarPulse {
    0%, 100% { box-shadow: 0 18px 40px -18px rgba(0, 157, 160, 0.65); }
    50% { box-shadow: 0 18px 46px -12px rgba(0, 255, 255, 0.85); }
}
.logo-tile .mark {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--accent);
}
.logo-tile .nm {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    text-align: center;
    line-height: 1.3;
}
.logo-tile.is-named {
    border-color: rgba(0, 157, 160, 0.45);
    box-shadow: 0 14px 30px -22px rgba(0, 157, 160, 0.85);
    background: linear-gradient(180deg, #ffffff, #f3fefe);
}

@media (max-width: 680px) {
    .person .avatar { width: 74px; height: 74px; }
    .eco-arrow { display: none; }
    .logo-tile { width: 148px; height: 74px; }
    .person-detail h3 { font-size: 22px; }
    .people-track { padding-inline: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .person .avatar { transition: none; }
}

/* ===== 工业 Agent 数字孪生 ===== */
.twin-hero { padding: 148px 0 36px; }
.twin-hero h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.18; letter-spacing: -1.5px; margin-bottom: 18px; }
.twin-stage {
    margin-top: 42px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .7fr);
    gap: 18px; align-items: stretch;
}
.twin-floor {
    position: relative; min-height: 420px; border-radius: 28px; overflow: hidden;
    background:
        radial-gradient(circle at 20% 20%, rgba(0,255,255,.18), transparent 36%),
        linear-gradient(165deg, #102326 0%, #173033 55%, #0d1c1e 100%);
    box-shadow: 0 30px 70px -40px rgba(8, 40, 42, .55);
}
.twin-svg { width: 100%; height: 100%; display: block; }
.twin-grid line { stroke: rgba(0,255,255,.12); stroke-width: 1; }
.twin-ghost {
    fill: none; stroke: rgba(0,255,255,.28); stroke-width: 10; stroke-linecap: round;
    transform: translate(10px, -8px); filter: blur(.4px);
}
.twin-line {
    fill: none; stroke: #7ef6f6; stroke-width: 3; stroke-linecap: round;
    stroke-dasharray: 14 16; animation: twin-dash 8s linear infinite;
}
.twin-packet { fill: #ffffff; filter: drop-shadow(0 0 8px #00ffff); offset-path: path("M110 292 C 210 292, 230 162, 330 162 S 450 282, 510 262 S 630 142, 690 142"); animation: twin-run 7s linear infinite; }
.twin-scan {
    position: absolute; left: 0; right: 0; height: 28%; top: -30%;
    background: linear-gradient(180deg, transparent, rgba(0,255,255,.16), transparent);
    animation: twin-scan 5.5s ease-in-out infinite; pointer-events: none;
}
.twin-node {
    position: absolute; transform: translate(-50%, -50%);
    width: 54px; height: 54px; border-radius: 50%; border: 1px solid rgba(0,255,255,.7);
    background: rgba(8, 28, 30, .72); color: #e8ffff; cursor: pointer;
    display: grid; place-items: center; font-weight: 800; letter-spacing: .04em;
}
.twin-node i {
    position: absolute; inset: -8px; border-radius: 50%; border: 1px solid rgba(0,255,255,.35);
    animation: pulse 2.4s infinite;
}
.twin-node.is-on { background: #00ffff; color: #063536; box-shadow: 0 0 28px rgba(0,255,255,.55); }
.twin-readout {
    border-radius: 28px; padding: 28px 26px; background: #ffffff;
    border: 1px solid var(--border); box-shadow: 0 24px 50px -36px var(--shadow);
    display: flex; flex-direction: column; justify-content: center;
}
.twin-live { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-size: 13px; font-weight: 700; }
.twin-live i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 12px var(--accent-bright); animation: pulse 1.6s infinite; }
.twin-kicker { margin-top: 18px; color: var(--text-mute); letter-spacing: .16em; font-size: 12px; font-weight: 700; }
.twin-readout h2 { font-size: 28px; line-height: 1.25; margin: 8px 0 12px; }
.twin-readout p { color: var(--text-dim); }
.twin-meters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 26px; }
.twin-meters span { background: #f4fbfb; border-radius: 14px; padding: 12px 8px; text-align: center; }
.twin-meters b { display: block; font-size: 18px; }
.twin-meters small { color: var(--text-mute); }
.twin-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.twin-step {
    background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 22px 18px;
    min-height: 180px; transition: transform .35s var(--ease), border-color .35s;
}
.twin-step:hover { transform: translateY(-6px); border-color: var(--accent-2); }
.twin-step span { color: var(--accent); font-weight: 800; letter-spacing: .08em; }
.twin-step h3 { margin: 10px 0 8px; font-size: 18px; }
.twin-step p { color: var(--text-dim); font-size: 14.5px; }
.twin-scenes { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.twin-scenes span {
    padding: 12px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--border);
    animation: twin-float 4.8s ease-in-out infinite;
}
.twin-scenes span:nth-child(2) { animation-delay: .4s; }
.twin-scenes span:nth-child(3) { animation-delay: .8s; }
.twin-scenes span:nth-child(4) { animation-delay: 1.2s; }
@keyframes twin-dash { to { stroke-dashoffset: -240; } }
@keyframes twin-run { to { offset-distance: 100%; } }
@keyframes twin-scan { 50% { top: 78%; } }
@keyframes twin-float { 50% { transform: translateY(-6px); } }
@media (max-width: 900px) {
    .twin-stage, .twin-steps { grid-template-columns: 1fr; }
    .twin-floor { min-height: 340px; }
    .twin-hero h1 { font-size: 36px; }
}
@media (prefers-reduced-motion: reduce) {
    .twin-line, .twin-packet, .twin-scan, .twin-node i, .twin-scenes span { animation: none; }
}

/* ===== 鼠标代码粒子画布 ===== */
#codeFx {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}
.nav, .footer, section, .hero { position: relative; z-index: 1; }
.nav { position: fixed; z-index: 200; }
@media (prefers-reduced-motion: reduce) {
    #codeFx { display: none; }
}