/* ============================================================================
   九龙科技 - 前台官网 PC 端样式（site.css）
   ----------------------------------------------------------------------------
   设计：深色-浅色混合、大尺度首屏、Orb 光斑、网格底、弱磨砂玻璃、强动效。
   与 admin.css 独立，不相互覆盖。
   ============================================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.site {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Inter", Helvetica, Arial, sans-serif;
    color: #0f172a;
    background: #f6f8fc;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    font-size: 14.5px;
    overflow-x: hidden;
}
body.site a { color: inherit; text-decoration: none; }
body.site img { max-width: 100%; display: block; }
body.site h1, body.site h2, body.site h3, body.site h4 { margin: 0; line-height: 1.2; letter-spacing: 0.01em; }
body.site p { margin: 0; }
body.site ul { margin: 0; padding: 0; list-style: none; }

.site-wrap {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== 背景：网格 + 光斑 + 噪点 ===== */
.site-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}
.bg-grid {
    position: absolute;
    inset: -2px;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at 50% 0%, #000 35%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 35%, transparent 75%);
}
.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    mix-blend-mode: screen;
    will-change: transform;
}
.bg-orb--1 { width: 520px; height: 520px; top: -120px; left: -100px;  background: radial-gradient(circle at 30% 30%, #6ea8ff, transparent 60%); animation: jlsite-orb 18s ease-in-out infinite; }
.bg-orb--2 { width: 480px; height: 480px; top: 120px;  right: -140px; background: radial-gradient(circle at 50% 50%, #a37dff, transparent 60%); animation: jlsite-orb 22s ease-in-out -4s infinite reverse; }
.bg-orb--3 { width: 560px; height: 560px; top: 60%;    left: 40%;     background: radial-gradient(circle at 50% 50%, #7ce3c8, transparent 60%); animation: jlsite-orb 26s ease-in-out -8s infinite; opacity: 0.35; }
.bg-noise {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px);
    background-size: 3px 3px;
    opacity: 0.6;
    mix-blend-mode: multiply;
}

/* ===== 全局按钮 ===== */
.site-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
    white-space: nowrap;
    user-select: none;
}
.site-btn--lg { padding: 14px 26px; font-size: 15px; }
.site-btn--primary {
    background: linear-gradient(120deg, #6ea8ff 0%, #8f6dff 55%, #e178ff 110%);
    color: #fff;
    box-shadow: 0 12px 28px rgba(111, 118, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.site-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(111, 118, 255, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.45); }
.site-btn--ghost {
    background: rgba(255, 255, 255, 0.65);
    color: #1e293b;
    border: 1px solid rgba(148, 163, 184, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.site-btn--ghost:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08); }
.site-btn--light { background: #fff; color: #0f172a; }
.site-btn--light:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255, 255, 255, 0.25); }
.site-btn--outline { border: 1px solid rgba(255, 255, 255, 0.5); color: #fff; }
.site-btn--outline:hover { background: rgba(255, 255, 255, 0.12); }

/* ===== 链接 ===== */
.site-link { color: #5b6bff; font-weight: 500; }
.site-link--arrow { position: relative; }
.site-link--arrow:hover { color: #4056ea; }

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: saturate(160%) blur(16px);
    -webkit-backdrop-filter: saturate(160%) blur(16px);
    box-shadow: 0 1px 0 rgba(226, 232, 240, 0.9), 0 8px 28px rgba(15, 23, 42, 0.05);
}
.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 16px;
}
.site-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #0f172a;
}
.site-brand-logo {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    box-shadow: 0 6px 18px rgba(110, 168, 255, 0.28);
}
.site-brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.site-brand-text strong { font-size: 15px; font-weight: 700; letter-spacing: 0.02em; }
.site-brand-text em { font-size: 10px; font-style: normal; color: #94a3b8; letter-spacing: 0.22em; text-transform: uppercase; margin-top: 2px; }

.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(148, 163, 184, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 5px;
    border-radius: 999px;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}
.site-nav-link {
    padding: 8px 16px;
    font-size: 13.5px;
    font-weight: 500;
    color: #475569;
    border-radius: 999px;
    transition: background 0.2s ease, color 0.2s ease;
}
.site-nav-link:hover { background: rgba(255, 255, 255, 0.9); color: #0f172a; }
.site-nav-link.active {
    background: linear-gradient(120deg, #6ea8ff 0%, #8f6dff 100%);
    color: #fff;
    box-shadow: 0 6px 14px rgba(111, 118, 255, 0.35);
}

.site-actions { display: flex; align-items: center; gap: 10px; }
.site-actions .site-link { padding: 8px 12px; font-size: 13.5px; color: #475569; }
.site-actions .site-link:hover { color: #0f172a; }

.site-burger { display: none; width: 40px; height: 40px; background: transparent; border: 0; cursor: pointer; flex-direction: column; justify-content: center; align-items: center; gap: 4px; }
.site-burger span { width: 20px; height: 2px; background: #0f172a; border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }
.site-burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-burger.is-open span:nth-child(2) { opacity: 0; }
.site-burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.site-mobile-nav { display: none; }

/* ===== MAIN ===== */
.site-main { position: relative; z-index: 1; }

/* ===== HERO ===== */
.hero { padding: 80px 0 120px; position: relative; overflow: visible; }
.hero-wrap { text-align: center; position: relative; }

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 999px;
    font-size: 12px;
    color: #475569;
    letter-spacing: 0.06em;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}
.hero-eyebrow-dot {
    width: 7px;
    height: 7px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15);
    animation: jlsite-pulse 2s ease-in-out infinite;
}

.hero-title {
    margin-top: 22px;
    font-size: clamp(36px, 5.2vw, 64px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: #0f172a;
}
.hero-title-grad {
    background: linear-gradient(110deg, #6ea8ff 0%, #8f6dff 40%, #e178ff 70%, #ff9b7c 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: jlsite-grad 7s ease-in-out infinite;
}
.hero-sub {
    margin-top: 22px;
    font-size: clamp(15px, 1.2vw, 17px);
    color: #475569;
    line-height: 1.7;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin: 56px auto 0;
    max-width: 820px;
    padding: 18px 22px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(226, 232, 240, 0.7);
    border-radius: 20px;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.hero-stat { display: flex; flex-direction: column; align-items: center; gap: 4px; position: relative; }
.hero-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -9px;
    top: 15%;
    bottom: 15%;
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.4), transparent);
}
.hero-stat strong {
    font-size: clamp(22px, 2vw, 28px);
    font-weight: 800;
    color: #0f172a;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
}
.hero-stat span { font-size: 12px; color: #64748b; letter-spacing: 0.06em; }

/* HERO 控制台 Mock */
.hero-mock {
    position: relative;
    margin: 72px auto 0;
    width: 100%;
    max-width: 980px;
    padding: 12px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(110, 168, 255, 0.25), rgba(163, 125, 255, 0.25));
    box-shadow: 0 40px 100px rgba(15, 23, 42, 0.18);
}
.hero-mock-glow {
    position: absolute;
    inset: -20px -40px auto -40px;
    height: 280px;
    background: radial-gradient(ellipse at 50% 0%, rgba(111, 118, 255, 0.35), transparent 70%);
    filter: blur(40px);
    z-index: -1;
}
.hero-mock-frame {
    background: #0f172a;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.4);
}
.hmf-top {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(180deg, #1e293b, #0f172a);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.hmf-dot { width: 10px; height: 10px; border-radius: 50%; }
.hmf-dot--r { background: #ef4444; }
.hmf-dot--y { background: #f59e0b; }
.hmf-dot--g { background: #22c55e; }
.hmf-addr {
    flex: 1;
    text-align: center;
    font-size: 11px;
    color: #94a3b8;
    background: rgba(255, 255, 255, 0.04);
    padding: 4px 10px;
    border-radius: 6px;
    font-family: ui-monospace, 'SFMono-Regular', Menlo, monospace;
    margin-right: 36px;
}
.hmf-body { display: flex; min-height: 340px; }
.hmf-side {
    width: 180px;
    background: #0b1220;
    padding: 16px 12px;
    border-right: 1px solid rgba(255, 255, 255, 0.04);
}
.hmf-logo {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, #6ea8ff, #a37dff);
    margin-bottom: 16px;
}
.hmf-side ul { display: flex; flex-direction: column; gap: 4px; }
.hmf-side-item {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px;
    color: #64748b;
    font-size: 12px;
    border-radius: 8px;
    font-weight: 500;
}
.hmf-side-item i { width: 14px; height: 14px; background: #334155; border-radius: 3px; }
.hmf-side-item.active { background: rgba(110, 168, 255, 0.12); color: #cbd5e1; }
.hmf-side-item.active i { background: linear-gradient(135deg, #6ea8ff, #a37dff); }

.hmf-main { flex: 1; padding: 18px; display: flex; flex-direction: column; gap: 16px; }
.hmf-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.hmf-card { padding: 12px; border-radius: 10px; background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(255, 255, 255, 0.05); position: relative; overflow: hidden; }
.hmf-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.hmf-card--blue::before    { background: linear-gradient(90deg, #5b8def, #6366f1); }
.hmf-card--violet::before  { background: linear-gradient(90deg, #8b5cf6, #a855f7); }
.hmf-card--emerald::before { background: linear-gradient(90deg, #10b981, #22c55e); }
.hmf-card--amber::before   { background: linear-gradient(90deg, #f59e0b, #f97316); }
.hmf-card-tag { font-size: 10px; color: #64748b; letter-spacing: 0.08em; text-transform: uppercase; }
.hmf-card b { display: block; margin: 6px 0 2px; font-size: 18px; color: #f1f5f9; font-weight: 700; font-variant-numeric: tabular-nums; }
.hmf-card em { font-size: 10px; color: #64748b; font-style: normal; }

.hmf-chart { flex: 1; background: linear-gradient(180deg, rgba(91, 141, 239, 0.04), transparent); border-radius: 10px; padding: 8px; border: 1px solid rgba(255, 255, 255, 0.04); }
.hmf-chart svg { width: 100%; height: 100%; display: block; }

.hero-mock-badge {
    position: absolute;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #1e293b;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
    white-space: nowrap;
    animation: jlsite-float 6s ease-in-out infinite;
}
.hero-mock-badge--1 { top: 30%; left: -30px; animation-delay: -1s; }
.hero-mock-badge--2 { top: 10%; right: -40px; animation-delay: -3s; }
.hero-mock-badge--3 { bottom: 15%; right: -20px; animation-delay: -5s; }

/* ===== Logos (跑马灯) ===== */
.logos {
    padding: 32px 0 48px;
    position: relative;
    overflow: hidden;
}
.logos-track {
    display: flex;
    gap: 48px;
    mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}
.logos-row {
    display: flex;
    gap: 48px;
    animation: jlsite-marquee 28s linear infinite;
    flex-shrink: 0;
}
.logos-row span {
    font-size: 13px;
    color: #64748b;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(226, 232, 240, 0.7);
    border-radius: 999px;
    white-space: nowrap;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

/* ===== Section 通用 ===== */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-head--row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    max-width: none;
    text-align: left;
    margin-bottom: 40px;
    gap: 20px;
}
.section-eyebrow {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(120deg, rgba(110, 168, 255, 0.15), rgba(163, 125, 255, 0.15));
    border: 1px solid rgba(110, 168, 255, 0.3);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: #5b6bff;
    margin-bottom: 18px;
}
.section-eyebrow--light { background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.section-title {
    font-size: clamp(28px, 3.2vw, 42px);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0f172a;
}
.section-title em {
    font-style: normal;
    background: linear-gradient(120deg, #6ea8ff, #a37dff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.section-sub {
    margin-top: 14px;
    font-size: 15px;
    color: #64748b;
    line-height: 1.75;
}

/* ===== Features ===== */
.features { padding: 80px 0; position: relative; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}
.feature-card {
    position: relative;
    padding: 26px 26px 24px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(226, 232, 240, 0.75);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    overflow: hidden;
    isolation: isolate;
}
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(260px 140px at var(--x, 50%) var(--y, 0%), rgba(110, 168, 255, 0.14), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 24px 48px rgba(15, 23, 42, 0.1); border-color: rgba(148, 163, 184, 0.5); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px; height: 48px;
    border-radius: 14px;
    color: #fff;
    margin-bottom: 18px;
    box-shadow: 0 10px 24px rgba(110, 168, 255, 0.3);
}
.feature-card--blue    .feature-icon { background: linear-gradient(135deg, #5b8def, #6366f1); }
.feature-card--violet  .feature-icon { background: linear-gradient(135deg, #8b5cf6, #a855f7); }
.feature-card--emerald .feature-icon { background: linear-gradient(135deg, #10b981, #22c55e); }
.feature-card--amber   .feature-icon { background: linear-gradient(135deg, #f59e0b, #f97316); }
.feature-card--cyan    .feature-icon { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.feature-card--rose    .feature-icon { background: linear-gradient(135deg, #f43f5e, #ec4899); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: #0f172a; }
.feature-card p { color: #64748b; font-size: 14px; line-height: 1.7; }
.feature-corner {
    position: absolute;
    width: 120px; height: 120px;
    right: -40px; bottom: -40px;
    background: radial-gradient(circle, rgba(110, 168, 255, 0.12), transparent 65%);
    border-radius: 50%;
    pointer-events: none;
}

/* ===== Showcase Apps ===== */
.showcase { padding: 80px 0; position: relative; }
.showcase--list { padding-top: 40px; }
.app-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}
.app-card {
    position: relative;
    padding: 22px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(226, 232, 240, 0.9);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.app-card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px rgba(15, 23, 42, 0.12); border-color: rgba(110, 168, 255, 0.5); }
.app-card--clickable { cursor: pointer; }
.app-card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.app-card-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 22px;
    box-shadow: 0 10px 24px rgba(110, 168, 255, 0.28);
    overflow: hidden;
}
.app-card-icon img { width: 100%; height: 100%; object-fit: cover; }
.app-card-icon--0 { background: linear-gradient(135deg, #6ea8ff, #8f6dff); }
.app-card-icon--1 { background: linear-gradient(135deg, #f472b6, #c084fc); }
.app-card-icon--2 { background: linear-gradient(135deg, #34d399, #60a5fa); }
.app-card-icon--3 { background: linear-gradient(135deg, #fbbf24, #f97316); }
.app-card-icon--4 { background: linear-gradient(135deg, #22d3ee, #6366f1); }
.app-card-icon--5 { background: linear-gradient(135deg, #fb7185, #f97316); }
.app-card-cat {
    font-size: 11px;
    padding: 5px 10px;
    background: #f1f5f9;
    color: #64748b;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.06em;
}
.app-card-title { font-size: 17px; font-weight: 700; color: #0f172a; margin-bottom: 6px; }
.app-card-desc { color: #64748b; font-size: 13.5px; line-height: 1.7; min-height: 48px; }
.app-card-foot {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed rgba(148, 163, 184, 0.3);
    font-size: 12.5px;
}
.app-card-actions {
    margin-top: 10px;
    font-size: 13px;
}
.app-card-ver { color: #94a3b8; font-family: ui-monospace, Menlo, monospace; }
.app-card-price.free { color: #16a34a; font-weight: 700; }
.app-card-price.paid { color: #d97706; font-weight: 700; }
.app-card-shine {
    position: absolute;
    top: -100px;
    right: -80px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(110, 168, 255, 0.18), transparent 70%);
    border-radius: 50%;
    transition: transform 0.6s ease;
    pointer-events: none;
}
.app-card:hover .app-card-shine { transform: translate(-40px, 40px) scale(1.2); }
.app-empty {
    grid-column: 1 / -1;
    padding: 48px;
    text-align: center;
    color: #94a3b8;
    background: rgba(255, 255, 255, 0.6);
    border: 1px dashed rgba(148, 163, 184, 0.4);
    border-radius: 16px;
}
.app-empty a { color: #5b6bff; font-weight: 600; }

/* ===== Flow ===== */
.flow { padding: 80px 0; position: relative; }
.flow-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    counter-reset: jl-flow;
}
.flow-item {
    position: relative;
    padding: 26px 22px 22px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.75) 100%);
    border: 1px solid rgba(226, 232, 240, 0.8);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.flow-item:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08); }
.flow-num {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #6ea8ff, #a37dff 60%, transparent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: block;
    margin-bottom: 10px;
    line-height: 1;
}
.flow-item h3 { font-size: 16px; font-weight: 700; color: #0f172a; margin-bottom: 6px; }
.flow-item p { color: #64748b; font-size: 13.5px; line-height: 1.7; }
.flow-item::before {
    content: '';
    position: absolute;
    top: 24px; right: -1px;
    width: 20px; height: 2px;
    background: linear-gradient(90deg, rgba(110, 168, 255, 0.6), transparent);
}
.flow-item:last-child::before { display: none; }

/* ===== CTA ===== */
.cta { padding: 64px 0 96px; position: relative; }
.cta-box {
    position: relative;
    border-radius: 28px;
    padding: 56px 56px;
    color: #fff;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    background: #0f172a;
    box-shadow: 0 40px 80px rgba(15, 23, 42, 0.3);
}
.cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(600px 300px at 10% 0%, rgba(111, 118, 255, 0.55), transparent 65%),
        radial-gradient(500px 300px at 90% 100%, rgba(225, 120, 255, 0.45), transparent 65%),
        linear-gradient(135deg, #0f172a, #1e1b4b);
    z-index: -1;
}
.cta-text { max-width: 560px; }
.cta-text h2 { color: #fff; font-size: clamp(24px, 2.4vw, 32px); margin-bottom: 10px; }
.cta-text h2 em { background: linear-gradient(120deg, #c4b5fd, #fbcfe8); -webkit-background-clip: text; background-clip: text; color: transparent; font-style: normal; }
.cta-text p { color: rgba(226, 232, 240, 0.75); font-size: 15px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== 内页 Hero ===== */
.page-hero-site { padding: 80px 0 40px; text-align: center; }
.page-hero-site-inner { max-width: 720px; margin: 0 auto; }
.page-hero-site-inner .section-title { font-size: clamp(30px, 3.5vw, 44px); }

.app-search {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 520px;
    margin: 28px auto 18px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 999px;
    padding: 6px 6px 6px 18px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}
.app-search-input { flex: 1; display: flex; align-items: center; gap: 10px; color: #94a3b8; }
.app-search-input input {
    border: 0; outline: none; background: transparent;
    width: 100%; font-size: 14.5px; color: #0f172a; padding: 10px 0;
    font-family: inherit;
}
.app-cats {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 18px;
}
.app-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 500;
    color: #475569;
    transition: all 0.2s ease;
}
.app-cat:hover { background: #fff; color: #0f172a; border-color: rgba(148, 163, 184, 0.6); }
.app-cat.active {
    background: linear-gradient(120deg, #6ea8ff, #8f6dff);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(111, 118, 255, 0.3);
}
.app-cat-count {
    padding: 1px 7px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    font-size: 10.5px;
}
.app-cat:not(.active) .app-cat-count { background: #e2e8f0; color: #94a3b8; }

/* ===== 应用详情页 ===== */
.app-detail-hero { padding-bottom: 28px; }
.app-detail-head {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    text-align: left;
    background: rgba(255,255,255,0.8);
    border: 1px solid rgba(226,232,240,0.9);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 16px 40px rgba(15,23,42,0.08);
}
.app-detail-logo { flex-shrink: 0; width: 68px; height: 68px; font-size: 26px; }
.app-detail-main { flex: 1; min-width: 0; }
.app-detail-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}
.app-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}
.app-detail-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 18px;
}
.app-detail-card {
    background: rgba(255,255,255,0.82);
    border: 1px solid rgba(226,232,240,0.9);
    border-radius: 18px;
    padding: 22px;
}
.app-detail-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #0f172a;
}
.app-detail-card p {
    color: #64748b;
    line-height: 1.8;
}
.app-feature-list li {
    position: relative;
    padding-left: 18px;
    margin: 10px 0;
    color: #334155;
}
.app-feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6ea8ff, #8f6dff);
}
.app-detail-kv {
    margin-top: 12px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px dashed rgba(148,163,184,0.35);
    padding-top: 10px;
    font-size: 13px;
}
.app-detail-kv span { color: #94a3b8; }
.app-detail-kv strong { color: #0f172a; font-weight: 600; }
.app-trial-note {
    margin-top: 12px;
    padding: 10px 12px;
    background: rgba(110,168,255,0.08);
    border: 1px solid rgba(110,168,255,0.22);
    border-radius: 10px;
    color: #334155;
    font-size: 13px;
    line-height: 1.7;
}
.app-shot-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.app-shot {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(226,232,240,0.9);
    background: #fff;
    box-shadow: 0 10px 26px rgba(15,23,42,0.08);
    min-height: 180px;
}
.app-shot img { width: 100%; height: 100%; object-fit: cover; }

/* ===== 演示中心 ===== */
.demo-center {
    max-width: 880px;
    margin: 0 auto;
    padding: 26px;
    border-radius: 22px;
    background: rgba(255,255,255,0.84);
    border: 1px solid rgba(226,232,240,0.9);
    box-shadow: 0 16px 40px rgba(15,23,42,0.08);
}
.demo-switch {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.demo-box {
    margin-top: 22px;
    border: 1px dashed rgba(148,163,184,0.45);
    border-radius: 16px;
    background: #fff;
    padding: 20px;
    text-align: center;
}
.demo-box-meta {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 18px;
    color: #64748b;
    font-size: 12px;
}
.demo-box-links {
    margin-top: 12px;
    display: flex;
    justify-content: center;
    gap: 14px;
    font-size: 13px;
}
.demo-box-links a { color: #5b6bff; }

/* ===== About ===== */
.about-grid-wrap { padding: 40px 0 80px; }
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}
.about-card {
    padding: 32px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.about-card:hover { transform: translateY(-3px); box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08); }
.about-num {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #6ea8ff, #a37dff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.02em;
    line-height: 1;
    display: block;
    margin-bottom: 12px;
}
.about-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: #0f172a; }
.about-card p { color: #64748b; font-size: 14px; line-height: 1.75; }

/* ===== Footer ===== */
.site-footer {
    position: relative;
    z-index: 1;
    margin-top: 40px;
    color: #cbd5e1;
    background: linear-gradient(180deg, #0b1220 0%, #070b17 100%);
}
.site-footer-top {
    padding: 56px 32px;
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 48px;
}
.site-footer .site-brand-text strong { color: #f1f5f9; }
.site-footer .site-brand-text em { color: #64748b; }
.site-footer-desc { margin-top: 14px; color: #94a3b8; font-size: 13.5px; line-height: 1.75; max-width: 420px; }
.site-footer-cols {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}
.site-footer-col h4 { color: #f1f5f9; font-size: 14px; margin-bottom: 14px; font-weight: 600; letter-spacing: 0.04em; }
.site-footer-col a {
    display: block;
    color: #94a3b8;
    font-size: 13.5px;
    padding: 5px 0;
    transition: color 0.2s ease;
}
.site-footer-col a:hover { color: #f1f5f9; }
.site-footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); }
.site-footer-bottom-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 32px;
    font-size: 12px;
    color: #64748b;
}
.site-footer-bottom-inner a { color: inherit; }
.site-footer-bottom-inner a:hover { color: #cbd5e1; }

/* ===== 动画：滚动入场 ===== */
[data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--d, 0ms);
}
[data-reveal].is-in {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Keyframes ===== */
@keyframes jlsite-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -30px) scale(1.08); }
}
@keyframes jlsite-grad {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
@keyframes jlsite-pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15); }
    50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.08); }
}
@keyframes jlsite-marquee {
    from { transform: translateX(0); }
    to { transform: translateX(calc(-100% - 48px)); }
}
@keyframes jlsite-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===== 响应式：在 PC 端浏览器窗口较窄时做温和降级（不影响手机独立样式） ===== */
@media (max-width: 1080px) {
    .feature-grid, .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .flow-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .flow-item:nth-child(2)::before { display: none; }
    .app-shot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .app-detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-stat:nth-child(2)::after { display: none; }
    .site-footer-top { grid-template-columns: 1fr; }
    .cta-box { padding: 40px 28px; }
    .section-head--row { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 760px) {
    body.site-client-pc .site-nav { display: none; }
    body.site-client-pc .site-burger { display: flex; }
    body.site-client-pc .site-actions .site-link,
    body.site-client-pc .site-actions .site-btn { display: none; }
    body.site-client-pc .site-mobile-nav {
        display: block;
        position: fixed;
        top: 68px; left: 0; right: 0;
        z-index: 45;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: saturate(160%) blur(18px);
        -webkit-backdrop-filter: saturate(160%) blur(18px);
        border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    }
    body.site-client-pc .site-mobile-nav.is-open { max-height: 640px; }
    body.site-client-pc .site-mobile-nav-inner { padding: 8px 18px 18px; display: flex; flex-direction: column; }
    body.site-client-pc .site-mobile-nav a {
        display: flex; align-items: center; justify-content: space-between;
        padding: 14px 4px;
        border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        color: #1e293b; font-weight: 500;
    }
    body.site-client-pc .site-mobile-nav a.active { color: #5b6bff; }
    body.site-client-pc .site-mobile-nav a svg { color: #94a3b8; }
    body.site-client-pc .site-mobile-actions { display: flex; gap: 10px; margin-top: 14px; }
    body.site-client-pc .site-mobile-actions .site-btn { flex: 1; justify-content: center; }
    body.site-client-pc .site-mobile-switch { margin-top: 14px; text-align: center; font-size: 12px; color: #94a3b8; }
    body.site-client-pc .site-mobile-switch a { color: #5b6bff; font-weight: 600; margin: 0 4px; }
    .feature-grid, .app-grid, .about-grid { grid-template-columns: 1fr; }
    .app-shot-grid { grid-template-columns: 1fr; }
    .flow-list { grid-template-columns: 1fr; }
    .flow-item::before { display: none; }
    .hero-mock-badge { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .bg-orb, .hero-title-grad, .hero-eyebrow-dot, .logos-row, .hero-mock-badge { animation: none !important; }
    [data-reveal] { opacity: 1; transform: none; transition: none; }
}