/* ===========================
   灵点上新 - Design System
   Palette: Teal + Amber + Slate
   =========================== */
:root {
    --primary: #0d9488;          /* teal-600 */
    --primary-dark: #0f766e;     /* teal-700 */
    --primary-light: #14b8a6;    /* teal-500 */
    --primary-50: #f0fdfa;       /* teal-50 */
    --primary-100: #ccfbf1;      /* teal-100 */

    --accent: #f59e0b;           /* amber-500 */
    --accent-dark: #d97706;      /* amber-600 */

    --ink: #0f172a;              /* slate-900 */
    --ink-2: #334155;            /* slate-700 */
    --ink-3: #64748b;            /* slate-500 */
    --line: #e2e8f0;             /* slate-200 */
    --bg: #ffffff;
    --bg-soft: #f8fafc;          /* slate-50 */
    --bg-tint: #f1f5f9;          /* slate-100 */

    --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.04);
    --shadow-md: 0 4px 12px rgba(15,23,42,.06), 0 2px 4px rgba(15,23,42,.04);
    --shadow-lg: 0 20px 40px -12px rgba(15,23,42,.12), 0 8px 16px -8px rgba(15,23,42,.08);
    --shadow-glow: 0 10px 30px -10px rgba(13,148,136,.45);

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-pill: 999px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.65;
    color: var(--ink-2);
    background: var(--bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--primary-dark); }

::selection { background: var(--primary-100); color: var(--primary-dark); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: 0 0 8px 0;
    z-index: 9999;
}
.skip-link:focus { left: 0; }

/* ===========================
   Header
   =========================== */
header {
    background: rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.logo img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 50%;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 32px;
}

.nav-links > li { display: flex; align-items: center; }

.nav-links a {
    text-decoration: none;
    color: var(--ink-2);
    font-weight: 500;
    font-size: 15px;
    transition: color .2s ease;
    position: relative;
    line-height: 1;
}

.nav-links a:hover { color: var(--primary); }

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: width .25s ease;
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-links > li:last-child {
    margin-left: 8px;
    padding-left: 24px;
    border-left: 1px solid var(--line);
}

.nav-cta {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: var(--ink);
    color: #fff !important;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 14px;
    line-height: 1;
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.nav-cta i { font-size: 11px; transition: transform .25s ease; }
.nav-cta:hover {
    background: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}
.nav-cta:hover i { transform: translateX(3px); }
.nav-cta::after { display: none !important; }

/* ===========================
   Hero
   =========================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(1200px 600px at 50% -10%, var(--primary-50) 0%, transparent 60%),
        linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(15,23,42,0.06) 1px, transparent 0);
    background-size: 28px 28px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
            mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .55;
    pointer-events: none;
}
.hero-orb-1 {
    width: 380px; height: 380px;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    top: -80px; left: -80px;
}
.hero-orb-2 {
    width: 320px; height: 320px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    bottom: -60px; right: -60px;
    opacity: .35;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--ink);
    max-width: 860px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--primary-dark);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}
.hero-badge i { color: var(--accent); }

.hero h1 {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 24px;
    color: var(--ink);
}
.hero-accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: clamp(16px, 1.6vw, 19px);
    color: var(--ink-3);
    max-width: 640px;
    margin: 0 auto 44px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 32px;
    padding: 20px 36px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-item { text-align: center; }
.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1.1;
}
.stat-label {
    font-size: 13px;
    color: var(--ink-3);
    margin-top: 4px;
    display: block;
}
.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--line);
}

/* ===========================
   Section common
   =========================== */
.eyebrow {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-50);
    color: var(--primary-dark);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
}
.eyebrow-light {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.section-title {
    text-align: center;
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 800;
    margin-bottom: 14px;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    text-align: center;
    font-size: 17px;
    color: var(--ink-3);
    margin-bottom: 64px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

section .container > .eyebrow {
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

/* ===========================
   Features
   =========================== */
.features {
    padding: 110px 0;
    background: var(--bg);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-item {
    background: #fff;
    padding: 36px 28px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    text-align: left;
    position: relative;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 52px;
    height: 52px;
    margin-bottom: 22px;
    background: var(--primary-50);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .25s ease;
}
.feature-item:hover .feature-icon {
    background: var(--primary);
}
.feature-icon i {
    font-size: 22px;
    color: var(--primary);
    transition: color .25s ease;
}
.feature-item:hover .feature-icon i { color: #fff; }

.feature-item h3 {
    color: var(--ink);
    margin-bottom: 10px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.feature-item p {
    color: var(--ink-3);
    font-size: 15px;
    line-height: 1.7;
}

/* ===========================
   Download / Get Started
   =========================== */
.download-section {
    padding: 110px 0;
    background:
        linear-gradient(180deg, var(--bg-soft) 0%, #fff 100%);
    position: relative;
}

.start-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
    max-width: 980px;
    margin: 0 auto;
}

.start-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    text-align: center;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    position: relative;
    overflow: hidden;
}

.start-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    opacity: 0;
    transition: opacity .25s ease;
}

.start-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.start-card:hover::before { opacity: 1; }

.start-step {
    display: inline-block;
    padding: 5px 14px;
    background: var(--ink);
    color: #fff;
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 22px;
}

.start-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 22px;
    background: var(--primary-50);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-6deg);
    transition: transform .3s ease;
}
.start-card:hover .start-icon { transform: rotate(0deg); }
.start-icon i {
    font-size: 34px;
    color: var(--primary);
}

.start-card h3 {
    font-size: 21px;
    color: var(--ink);
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.start-card > p {
    color: var(--ink-3);
    margin-bottom: 26px;
    font-size: 15px;
}

.start-card .btn { margin-bottom: 18px; }

/* ===========================
   Install Guide (details)
   =========================== */
.install-guide {
    text-align: left;
    margin-top: 18px;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    overflow: hidden;
}

.install-guide summary {
    cursor: pointer;
    padding: 12px 18px;
    font-weight: 600;
    color: var(--primary-dark);
    list-style: none;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    transition: background .2s ease;
}
.install-guide summary:hover { background: var(--primary-50); }
.install-guide summary::-webkit-details-marker { display: none; }
.install-guide summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 11px;
    transition: transform .25s ease;
}
.install-guide[open] summary::after { transform: rotate(180deg); }

.install-guide ol {
    padding: 4px 22px 14px 38px;
    color: var(--ink-2);
    line-height: 1.85;
    font-size: 14px;
}
.install-guide ol li { margin-bottom: 4px; }

.install-guide code {
    background: #fff;
    border: 1px solid var(--line);
    padding: 1px 7px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--accent-dark);
}

.install-note {
    margin: 0 18px 14px;
    padding: 10px 14px;
    background: #fffbeb;
    border-left: 3px solid var(--accent);
    border-radius: 6px;
    font-size: 13px;
    color: #78350f;
}
.install-note i { margin-right: 6px; color: var(--accent); }

/* ===========================
   Hero Trust Line
   =========================== */
.hero-trust {
    margin-top: 28px;
    font-size: 14px;
    color: var(--ink-3);
}
.hero-trust strong { color: var(--ink); font-weight: 700; }
.hero-trust i { color: var(--primary); margin-right: 6px; }

/* ===========================
   Platforms Logo Wall
   =========================== */
.platforms {
    padding: 60px 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
}
.platforms-title {
    text-align: center;
    color: var(--ink-3);
    font-size: 14px;
    margin-bottom: 32px;
    letter-spacing: 0.05em;
}
.platforms-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 36px 48px;
}
.platform-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink-3);
    font-size: 17px;
    font-weight: 600;
    transition: color .2s ease, transform .2s ease;
    filter: grayscale(0.4);
    opacity: 0.85;
}
.platform-item:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
    filter: grayscale(0);
    opacity: 1;
}
.platform-item i { font-size: 22px; }
.platform-status {
    font-style: normal;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 999px;
    letter-spacing: 0.02em;
    margin-left: 2px;
}
.platform-status.status-on {
    background: var(--primary-100);
    color: var(--primary-dark);
}
.platform-status.status-soon {
    background: #fef3c7;          /* amber-100 */
    color: var(--accent-dark);
}
.platforms-note {
    text-align: center;
    margin-top: 32px;
    color: var(--ink-3);
    font-size: 14px;
}
.platforms-note strong { color: var(--ink); }

/* ===========================
   Comparison
   =========================== */
.comparison {
    padding: 110px 0;
    background: var(--bg-soft);
}
.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}
.compare-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    position: relative;
}
.compare-good {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}
.compare-badge {
    position: absolute;
    top: 16px; right: 16px;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.05em;
}
.compare-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}
.compare-head i { font-size: 26px; }
.compare-bad .compare-head i { color: #ef4444; }
.compare-good .compare-head i { color: var(--primary); }
.compare-head h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--ink);
}
.compare-card ul {
    list-style: none;
    margin-bottom: 26px;
}
.compare-card li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 9px 0;
    color: var(--ink-2);
    font-size: 15px;
}
.compare-card li i {
    flex-shrink: 0;
    margin-top: 5px;
    font-size: 13px;
}
.compare-bad li i { color: #ef4444; opacity: 0.7; }
.compare-good li i { color: var(--primary); }
.compare-bad li { color: var(--ink-3); }
.compare-metric {
    background: var(--bg-soft);
    border-radius: var(--radius);
    padding: 18px;
    text-align: center;
}
.compare-good .compare-metric {
    background: var(--primary-50);
}
.metric-num {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1;
}
.compare-good .metric-num { color: var(--primary-dark); }
.metric-num small {
    font-size: 16px;
    font-weight: 600;
    margin-left: 4px;
    color: var(--ink-3);
}
.compare-good .metric-num small { color: var(--primary); }
.metric-label {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--ink-3);
}

/* ===========================
   Feature points (extra list inside card)
   =========================== */
.feature-points {
    list-style: none;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}
.feature-points li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink-2);
    font-size: 14px;
    padding: 4px 0;
}
.feature-points li i {
    color: var(--primary);
    font-size: 11px;
}

/* ===========================
   Workflow
   =========================== */
.workflow {
    padding: 110px 0;
    background: var(--bg-soft);
}
.workflow-list {
    list-style: none;
    max-width: 820px;
    margin: 0 auto;
    position: relative;
    padding-left: 24px;
}
.workflow-list::before {
    content: '';
    position: absolute;
    left: 47px;
    top: 30px;
    bottom: 30px;
    width: 2px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 50%, transparent 100%);
}
.workflow-step {
    display: flex;
    gap: 24px;
    padding: 18px 0;
    position: relative;
}
.workflow-num {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--primary);
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    box-shadow: 0 0 0 6px var(--bg-soft);
}
.workflow-body {
    flex: 1;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 26px;
    transition: transform .2s ease, box-shadow .2s ease;
}
.workflow-body:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-100);
}
.workflow-body h3 {
    color: var(--ink);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.workflow-body h3 i { color: var(--primary); font-size: 16px; }
.workflow-body p {
    color: var(--ink-3);
    font-size: 15px;
    line-height: 1.7;
}

/* ===========================
   Pricing
   =========================== */
.pricing {
    padding: 110px 0;
    background: var(--bg);
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1080px;
    margin: 0 auto;
    align-items: stretch;
}
.pricing-grid-4 {
    max-width: 1240px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}
@media (max-width: 1100px) {
    .pricing-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
    .pricing-grid-4 { grid-template-columns: 1fr; }
}
.pricing-note {
    text-align: center;
    color: var(--ink-3);
    font-size: 13px;
    margin-top: 32px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.pricing-grid-4 .pricing-card { padding: 32px 24px; }
.pricing-grid-4 .pricing-features { font-size: 14px; }
.pricing-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform .25s ease, box-shadow .25s ease;
}
.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.pricing-featured {
    border-color: var(--primary);
    border-width: 2px;
    box-shadow: var(--shadow-glow);
    transform: translateY(-8px);
}
.pricing-featured:hover { transform: translateY(-12px); }
.pricing-tag {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.05em;
}
.pricing-head {
    padding-bottom: 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--line);
}
.pricing-head h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}
.pricing-desc {
    font-size: 14px;
    color: var(--ink-3);
    margin-bottom: 18px;
}
.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.price-num {
    font-size: 38px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1;
}
.pricing-featured .price-num { color: var(--primary-dark); }
.price-unit {
    font-size: 14px;
    color: var(--ink-3);
}
.pricing-features {
    list-style: none;
    flex: 1;
    margin-bottom: 28px;
}
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    color: var(--ink-2);
    font-size: 14.5px;
}
.pricing-features li i {
    color: var(--primary);
    font-size: 12px;
    flex-shrink: 0;
}
.btn-block {
    width: 100%;
}

/* ===========================
   Testimonials
   =========================== */
.testimonials {
    padding: 110px 0;
    background: var(--bg-soft);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}
.testimonial-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 28px;
    transition: transform .25s ease, box-shadow .25s ease;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.testimonial-stars {
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 14px;
    display: flex;
    gap: 2px;
}
.testimonial-card blockquote {
    color: var(--ink-2);
    font-size: 15.5px;
    line-height: 1.75;
    margin-bottom: 22px;
    quotes: none;
}
.testimonial-card figcaption {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}
.testimonial-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.testimonial-card figcaption strong {
    display: block;
    color: var(--ink);
    font-size: 14.5px;
    font-weight: 700;
}
.testimonial-card figcaption span {
    display: block;
    color: var(--ink-3);
    font-size: 13px;
    margin-top: 2px;
}

/* ===========================
   FAQ
   =========================== */
.faq {
    padding: 110px 0;
    background: var(--bg);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open] {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}
.faq-item summary {
    cursor: pointer;
    padding: 20px 24px;
    font-weight: 600;
    color: var(--ink);
    list-style: none;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '\2b';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 16px;
    color: var(--primary);
    flex-shrink: 0;
    transition: transform .25s ease;
}
.faq-item[open] summary::after {
    content: '\f068';
}
.faq-item p {
    padding: 0 24px 22px;
    color: var(--ink-2);
    font-size: 15px;
    line-height: 1.8;
}
.faq-item p a {
    color: var(--primary-dark);
    text-decoration: underline;
    text-decoration-color: var(--primary-100);
    text-underline-offset: 3px;
}

/* ===========================
   CTA Banner
   =========================== */
.cta-banner {
    padding: 80px 0;
    background:
        radial-gradient(800px 400px at 100% 50%, rgba(245,158,11,0.08) 0%, transparent 60%),
        radial-gradient(800px 400px at 0% 50%, rgba(13,148,136,0.10) 0%, transparent 60%),
        var(--bg-soft);
}
.cta-inner {
    background: var(--ink);
    border-radius: var(--radius-lg);
    padding: 56px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-inner::before {
    content: '';
    position: absolute;
    top: -100px; right: -100px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: .35;
    pointer-events: none;
}
.cta-text { position: relative; z-index: 1; flex: 1; }
.cta-text h2 {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    color: #fff;
}
.cta-text p { color: rgba(255,255,255,0.7); font-size: 16px; }
.cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}
.cta-actions .btn-ghost {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.18);
}
.cta-actions .btn-ghost:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.3);
    color: #fff;
}

/* ===========================
   About
   =========================== */
.about {
    padding: 110px 0;
    background: var(--bg);
}

.about-content {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 17px;
    color: var(--ink-2);
    line-height: 1.9;
}

/* ===========================
   Contact
   =========================== */
.contact {
    padding: 110px 0;
    background: var(--ink);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(600px 300px at 20% 0%, rgba(13,148,136,0.25) 0%, transparent 60%),
        radial-gradient(500px 250px at 90% 100%, rgba(245,158,11,0.18) 0%, transparent 60%);
    pointer-events: none;
}
.contact > .container { position: relative; z-index: 1; }

.contact .section-title { color: #fff; }
.contact .section-subtitle { color: rgba(255,255,255,0.7); }

.contact-info {
    display: flex;
    justify-content: center;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 17px;
    padding: 16px 28px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-pill);
    color: #fff;
    text-decoration: none;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.contact-item:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.25);
    transform: translateY(-2px);
}
.contact-item i { font-size: 20px; color: var(--primary-light); }

/* ===========================
   Footer
   =========================== */
footer {
    background: #020617;
    color: rgba(255,255,255,0.55);
    padding: 64px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    text-align: center;
    justify-items: center;
}
.footer-brand {
    max-width: 360px;
    text-align: center;
}
.logo-light {
    color: #fff;
    margin-bottom: 14px;
    justify-content: center;
}
.footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    line-height: 1.75;
    margin-bottom: 18px;
}
.footer-social {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.footer-social a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
}
.footer-col h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}
.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.footer-col ul li,
.footer-col ul a {
    color: rgba(255,255,255,0.55);
    font-size: 14px;
    text-decoration: none;
    transition: color .2s ease;
}
.footer-col ul a:hover { color: var(--primary-light); }
.footer-bottom {
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 12px;
}
.footer-bottom p { font-size: 13px; margin: 0; }
.footer-beian {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}
.footer-beian a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 13px;
    transition: color .2s;
    display: inline-flex;
    align-items: center;
}
.footer-beian a:hover { color: rgba(255,255,255,0.85); }
.beian-icon {
    display: inline;
    vertical-align: middle;
    margin-right: 5px;
    height: 14px;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
    cursor: pointer;
    border: none;
    white-space: nowrap;
    line-height: 1;
}
.btn i { font-size: 14px; }

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 14px 32px -8px rgba(13,148,136,.55);
}

.btn-ghost {
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--line);
}
.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 15px 36px;
    font-size: 16px;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    header nav { padding: 12px 20px; }

    .hero { padding: 100px 0 60px; min-height: auto; }
    .hero-cta { flex-direction: column; align-items: stretch; padding: 0 20px; }
    .hero-cta .btn { width: 100%; }

    .hero-stats {
        gap: 16px;
        padding: 16px 20px;
    }
    .stat-number { font-size: 24px; }
    .stat-divider { height: 28px; }

    .features, .download-section, .about, .contact,
    .comparison, .workflow, .pricing, .testimonials, .faq { padding: 80px 0; }
    .platforms { padding: 40px 0; }
    .platforms-grid { gap: 22px 28px; }
    .platform-item { font-size: 15px; }
    .platform-item i { font-size: 18px; }
    .section-subtitle { margin-bottom: 44px; }

    .start-grid { grid-template-columns: 1fr; }
    .start-card { padding: 32px 24px; }

    .feature-item { padding: 28px 22px; }

    .compare-grid { grid-template-columns: 1fr; }
    .compare-card { padding: 28px 22px; }

    .workflow-list { padding-left: 0; }
    .workflow-list::before { left: 23px; }
    .workflow-step { gap: 16px; }
    .workflow-num { width: 40px; height: 40px; font-size: 14px; box-shadow: 0 0 0 4px var(--bg-soft); }
    .workflow-body { padding: 18px 20px; }

    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-featured { transform: none; }
    .pricing-featured:hover { transform: translateY(-4px); }
    .pricing-card { padding: 30px 26px; }

    .cta-banner { padding: 60px 0; }
    .cta-inner {
        flex-direction: column;
        text-align: center;
        padding: 40px 28px;
        gap: 24px;
    }
    .cta-actions { width: 100%; justify-content: center; }
    .cta-actions .btn { flex: 1; min-width: 140px; }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px 24px;
    }
    .footer-brand { grid-column: 1 / -1; max-width: none; text-align: center; }
    .footer-brand .logo-light { justify-content: center; }
    .footer-brand .footer-social { justify-content: center; }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .footer-beian { justify-content: center; }
}

@media (max-width: 420px) {
    .hero-stats {
        flex-direction: column;
        gap: 14px;
    }
    .stat-divider { width: 40px; height: 1px; }
}

/* ===========================
   Reduced motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}