:root {
    --ink-900: #0f172a;
    --ink-800: #1e293b;
    --ink-700: #334155;
    --ink-600: #475569;
    --ink-500: #64748b;
    --ink-300: #cbd5f5;
    --brand-700: #0f766e;
    --brand-600: #0d9488;
    --brand-500: #14b8a6;
    --brand-300: #5eead4;
    --sun-500: #f59e0b;
    --sky-500: #38bdf8;
    --paper: #f8fafc;
    --white: #ffffff;
    --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.15);
    --shadow-md: 0 20px 40px rgba(15, 23, 42, 0.12);
    --shadow-sm: 0 8px 18px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink-800);
    background: radial-gradient(circle at top left, rgba(94, 234, 212, 0.18), transparent 45%),
        radial-gradient(circle at 30% 10%, rgba(56, 189, 248, 0.15), transparent 40%),
        radial-gradient(circle at 70% 0%, rgba(245, 158, 11, 0.12), transparent 40%),
        var(--paper);
    min-height: 100vh;
    line-height: 1.7;
}

.hidden {
    display: none;
}

.error-banner {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid rgba(239, 68, 68, 0.3);
    background: rgba(248, 113, 113, 0.12);
    color: #b91c1c;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.text-center {
    text-align: center;
}

.muted {
    color: var(--ink-600);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.12);
    color: var(--brand-700);
    font-size: 0.85rem;
    font-weight: 600;
}

.section-header {
    display: grid;
    gap: 8px;
    margin-bottom: 24px;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.site-header {
    padding: 28px 0 10px;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.3px;
    color: var(--ink-900);
}

.brand span {
    background: linear-gradient(135deg, var(--brand-600), var(--sky-500));
    color: var(--white);
    padding: 6px 10px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 18px;
    font-size: 0.95rem;
    color: var(--ink-600);
}

.nav-links a {
    padding: 6px 10px;
    border-radius: 999px;
    transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus {
    background: rgba(13, 148, 136, 0.12);
    color: var(--brand-700);
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    align-items: center;
    padding: 48px 0 32px;
}

.hero h1 {
    font-size: clamp(2.2rem, 2.2rem + 1vw, 3.4rem);
    line-height: 1.15;
    margin: 0 0 18px;
    color: var(--ink-900);
}

.hero p {
    margin: 0 0 18px;
    color: var(--ink-600);
    font-size: 1.05rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.12);
    color: var(--brand-700);
    font-size: 0.9rem;
    font-weight: 600;
}

.hero-visual {
    background: linear-gradient(140deg, rgba(15, 118, 110, 0.12), rgba(56, 189, 248, 0.12));
    border-radius: 24px;
    padding: 22px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.hero-visual::after {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.25);
    filter: blur(0px);
}

.glass-card {
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 20px;
    padding: 26px;
    box-shadow: var(--shadow-sm);
}

.form-grid {
    display: grid;
    gap: 16px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ink-700);
}

input,
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(148, 163, 184, 0.5);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--white);
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--brand-500);
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.2);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: 14px;
    border: none;
    background: linear-gradient(120deg, var(--brand-600), var(--sky-500));
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.section {
    padding: 40px 0;
}

.section-tight-top {
    padding-top: 18px;
}

.section h2 {
    font-size: clamp(1.6rem, 1.2rem + 1vw, 2.3rem);
    margin-bottom: 18px;
    color: var(--ink-900);
}

.section p.lead {
    max-width: 720px;
    color: var(--ink-600);
    margin-bottom: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 18px;
}

.card {
    background: var(--white);
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.2);
    min-height: 190px;
}

.card h3 {
    margin: 0 0 10px;
    font-size: 1.15rem;
    color: var(--ink-900);
}

.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}

.kpi {
    padding: 18px;
    border-radius: 16px;
    background: rgba(15, 118, 110, 0.08);
    color: var(--ink-800);
    font-weight: 600;
}

.kpi strong {
    display: block;
    font-size: 1.6rem;
    color: var(--brand-700);
}

.table-wrap {
    overflow-x: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: var(--white);
}

.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 680px;
}

.table th,
.table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.table th {
    background: rgba(15, 118, 110, 0.08);
    color: var(--ink-900);
    font-weight: 700;
}

.notice {
    margin-top: 18px;
    padding: 14px 16px;
    border-left: 4px solid var(--sun-500);
    background: rgba(245, 158, 11, 0.12);
    border-radius: 12px;
    font-weight: 600;
}

.faq {
    display: grid;
    gap: 14px;
}

.faq-item {
    background: var(--white);
    border-radius: 16px;
    padding: 16px 18px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: var(--shadow-sm);
}

.faq-item h4 {
    margin: 0 0 6px;
    font-size: 1.05rem;
    color: var(--ink-900);
}

.cta {
    padding: 28px;
    border-radius: 22px;
    background: linear-gradient(120deg, rgba(15, 118, 110, 0.15), rgba(56, 189, 248, 0.2));
    border: 1px solid rgba(148, 163, 184, 0.2);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.footer {
    padding: 28px 0 40px;
    color: var(--ink-600);
    font-size: 0.95rem;
}

.footer .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer a:hover {
    color: var(--brand-700);
}

.content-shell {
    background: var(--white);
    padding: 28px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.content-shell h1 {
    margin-top: 0;
    color: var(--ink-900);
}

.content-shell h2 {
    margin-top: 28px;
    color: var(--ink-900);
}

.content-shell p {
    color: var(--ink-600);
}

.blog-card {
    display: grid;
    gap: 8px;
    padding: 20px;
    border-radius: 18px;
    background: var(--white);
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.blog-article h1 {
    font-size: clamp(2rem, 1.6rem + 1vw, 2.6rem);
    margin-bottom: 16px;
}

.blog-article h2 {
    font-size: 1.6rem;
    margin-top: 28px;
    margin-bottom: 12px;
    color: var(--ink-900);
    border-left: 4px solid var(--brand-500);
    padding-left: 12px;
}

.blog-article h3 {
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 8px;
    color: var(--ink-900);
}

.blog-article p {
    color: var(--ink-600);
    margin-bottom: 14px;
}

.blog-article ul {
    padding-left: 20px;
    color: var(--ink-600);
    margin-bottom: 14px;
}

.blog-article li {
    margin-bottom: 8px;
}

.tip-box {
    background: rgba(245, 158, 11, 0.12);
    border-left: 4px solid var(--sun-500);
    padding: 16px;
    border-radius: 12px;
    margin: 16px 0;
}

.fade-up {
    animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 760px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    .hero {
        padding-top: 24px;
    }

    .cta {
        text-align: left;
    }
}