:root {
        --bg: #04140e;
        --surface: #0a2420;
        --surface-light: #113a33;
        --accent: #34d399;
        --accent2: #fbbf24;
        --text: #effdf5;
        --muted: #8fb3a3;
        --font-display: 'Montserrat', sans-serif;
        --font-body: 'Lora', serif;
        --container: 1200px;
        --radius: 12px;
        --transition: all 0.3s ease;
    }

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

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

    /* TYPOGRAPHY */
    h1, h2, h3, .font-display {
        font-family: var(--font-display);
        line-height: 1.3;
    }

    h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; color: var(--text); margin-bottom: 1rem; }
    h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; color: var(--accent); margin-bottom: 1.5rem; }
    h3 { font-size: 1.25rem; font-weight: 700; color: var(--text); }

    a { color: var(--accent); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent2); }
    p { margin-bottom: 1.25rem; }

    .container {
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 1.5rem;
    }

    /* BUTTONS */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.75rem 1.5rem;
        border-radius: 8px;
        font-family: var(--font-display);
        font-weight: 700;
        text-align: center;
        cursor: pointer;
        transition: var(--transition);
        min-height: 44px;
        border: none;
    }
    .btn-primary { background-color: var(--accent); color: var(--bg); }
    .btn-primary:hover { background-color: #2bb582; transform: translateY(-2px); }
    .btn-secondary { background-color: transparent; color: var(--accent); border: 1px solid var(--accent); }
    .btn-secondary:hover { background-color: rgba(52, 211, 153, 0.1); }
    .btn-large { padding: 1rem 2.5rem; font-size: 1.125rem; border-radius: 50px; }

    /* HEADER */
    header {
        background-color: rgba(4, 20, 14, 0.95);
        backdrop-filter: blur(10px);
        position: sticky;
        top: 0;
        z-index: 100;
        border-bottom: 1px solid rgba(52, 211, 153, 0.1);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 80px;
    }
    .logo img { display: block; }
    .nav-links { display: none; gap: 2rem; }
    .nav-links a { font-family: var(--font-display); font-size: 0.875rem; font-weight: 600; color: var(--text); }
    .nav-links a:hover { color: var(--accent); }
    .header-ctas { display: none; gap: 1rem; }
    .mobile-toggle {
        background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer;
        min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center;
    }

    @media (min-width: 1024px) {
        .nav-links { display: flex; }
        .header-ctas { display: flex; }
        .mobile-toggle { display: none; }
    }

    /* Mobile Menu Active State */
    .header-inner.menu-open .nav-links {
        display: flex; flex-direction: column; position: absolute; top: 80px; left: 0; width: 100%;
        background-color: var(--surface); padding: 2rem; gap: 1.5rem; border-bottom: 1px solid var(--accent);
    }
    .header-inner.menu-open .header-ctas {
        display: flex; flex-direction: column; position: absolute; top: calc(80px + 280px); left: 0; width: 100%;
        background-color: var(--surface); padding: 0 2rem 2rem; gap: 1rem; border-bottom: 1px solid var(--accent);
    }

    /* HERO BANNER - LOGIN SPECIFIC */
    .hero-login {
        padding: 4rem 0 6rem;
        background: radial-gradient(circle at 50% 0%, var(--surface-light) 0%, var(--bg) 70%);
        position: relative;
        text-align: center;
        border-bottom: 1px solid rgba(52, 211, 153, 0.1);
    }

    /* Abstract table motif background */
    .hero-login::before {
        content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
        background-image: linear-gradient(rgba(52, 211, 153, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(52, 211, 153, 0.03) 1px, transparent 1px);
        background-size: 40px 40px; pointer-events: none; opacity: 0.5;
    }

    .breadcrumb {
        font-family: var(--font-display); font-size: 0.875rem; color: var(--muted); margin-bottom: 2rem;
        display: inline-block; padding: 0.5rem 1rem; background: rgba(10, 36, 32, 0.5); border-radius: 50px;
    }

    .meta-chips {
        display: flex; justify-content: center; gap: 1rem; margin-bottom: 3rem; flex-wrap: wrap;
    }
    .chip {
        font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
        letter-spacing: 1px; padding: 0.4rem 1rem; border-radius: 4px; background: rgba(52, 211, 153, 0.1); color: var(--accent);
    }

    .intro-card {
        background: var(--surface); padding: 2.5rem; border-radius: var(--radius);
        max-width: 900px; margin: 0 auto; box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        border-top: 4px solid var(--accent); text-align: left; position: relative; z-index: 2;
    }
    .intro-card p { font-size: 1.125rem; margin-bottom: 0; color: var(--text); }

    /* MAIN CONTENT */
    .main-content { padding: 5rem 0; }

    .content-module {
        margin-bottom: 5rem;
    }

    /* MODULE 1: Access (List Focus) */
    .module-access {
        display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: center;
    }
    .access-text { padding-right: 1rem; }
    .access-list {
        background: var(--surface); padding: 2.5rem; border-radius: var(--radius); border: 1px solid rgba(52, 211, 153, 0.2);
    }
    .custom-list { list-style: none; }
    .custom-list li {
        position: relative; padding-left: 2.5rem; margin-bottom: 1.25rem; font-size: 1.05rem;
    }
    .custom-list li::before {
        content: '✓'; position: absolute; left: 0; top: 2px; width: 24px; height: 24px;
        background: rgba(52, 211, 153, 0.2); color: var(--accent); border-radius: 50%;
        display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 800; font-size: 0.8rem;
    }

    @media (min-width: 1024px) {
        .module-access { grid-template-columns: 1fr 1fr; }
    }

    /* MODULE 2 & 3: Standard Flow */
    .module-flow {
        background: linear-gradient(180deg, transparent, rgba(10, 36, 32, 0.4), transparent);
        padding: 3rem 0; border-left: 2px solid var(--surface-light); margin-left: 1rem; padding-left: 2rem;
    }
    .module-flow h2 { display: flex; align-items: center; }
    .module-flow h2::before {
        content: ''; display: block; width: 12px; height: 12px; background: var(--accent);
        border-radius: 50%; margin-right: 1rem; margin-left: -2.4rem; box-shadow: 0 0 10px var(--accent);
    }

    /* MODULE 4: Forgot Password (Warning Style) */
    .module-alert {
        background: rgba(251, 191, 36, 0.05); border: 1px solid rgba(251, 191, 36, 0.2);
        padding: 3rem; border-radius: var(--radius); border-left: 6px solid var(--accent2);
    }
    .module-alert h2 { color: var(--accent2); }

    /* MODULE 5: Guide (Banner Style) */
    .module-guide {
        background: var(--surface); padding: 4rem 3rem; border-radius: var(--radius); text-align: center;
        background-image: radial-gradient(circle at 100% 100%, rgba(52, 211, 153, 0.1) 0%, transparent 50%);
    }
    .module-guide h2 { justify-content: center; margin-bottom: 2rem; }
    .module-guide p { max-width: 800px; margin-left: auto; margin-right: auto; }

    /* FAQ SECTION */
    .faq-section { margin-bottom: 5rem; }
    .faq-section h2 { text-align: center; margin-bottom: 3rem; }
    .faq-wrapper { max-width: 800px; margin: 0 auto; }
    details {
        background: var(--surface); margin-bottom: 1rem; border-radius: 8px;
        border: 1px solid rgba(52, 211, 153, 0.1); transition: var(--transition);
    }
    details:hover { border-color: rgba(52, 211, 153, 0.3); }
    summary {
        padding: 1.5rem; font-family: var(--font-display); font-weight: 700; cursor: pointer;
        display: flex; justify-content: space-between; align-items: center; list-style: none;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after {
        content: '+'; color: var(--accent); font-size: 1.5rem; font-weight: 400; transition: transform 0.3s;
    }
    details[open] summary::after { transform: rotate(45deg); }
    details p { padding: 0 1.5rem 1.5rem; color: var(--muted); margin: 0; }

    /* RELATED LINKS */
    .related-links { margin-bottom: 5rem; text-align: center; }
    .related-links h2 { font-size: 1.5rem; margin-bottom: 2rem; color: var(--text); }
    .link-grid {
        display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem;
    }
    .link-grid a {
        display: inline-block; padding: 0.75rem 1.5rem; background: var(--surface);
        border-radius: 50px; font-family: var(--font-display); font-size: 0.875rem; font-weight: 600;
        border: 1px solid rgba(52, 211, 153, 0.2);
    }
    .link-grid a:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }

    /* FINAL CTA */
    .final-cta {
        background: linear-gradient(135deg, var(--surface), #082a22);
        padding: 5rem 2rem; border-radius: 24px; text-align: center; margin-bottom: 5rem;
        border: 1px solid rgba(52, 211, 153, 0.2); box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    }
    .final-cta h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; color: var(--text); }
    .final-cta p { font-size: 1.25rem; color: var(--muted); margin-bottom: 2.5rem; max-width: 600px; margin-left: auto; margin-right: auto; }
    .cta-buttons { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; }

    /* FOOTER */
    footer {
        background-color: #020a07; border-top: 1px solid rgba(52, 211, 153, 0.1); padding: 4rem 0 2rem;
    }
    .footer-top { margin-bottom: 3rem; text-align: center; }
    .footer-brand {
        font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--accent); margin-bottom: 1rem;
    }
    .footer-tagline { color: var(--muted); max-width: 600px; margin: 0 auto; }
    .footer-links {
        display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 2rem; margin-bottom: 3rem;
    }
    .footer-links a { color: var(--muted); font-size: 0.875rem; }
    .footer-links a:hover { color: var(--accent); }
    .footer-bottom {
        text-align: center; color: rgba(143, 179, 163, 0.5); font-size: 0.875rem; border-top: 1px solid rgba(255,255,255,0.05); padding-top: 2rem;
    }

    @media (max-width: 768px) {
        .intro-card, .module-access, .module-flow, .module-alert, .module-guide { padding: 1.5rem; margin-left: 0; border-left: none; }
        .module-flow h2::before { display: none; }
        .cta-buttons { flex-direction: column; width: 100%; }
        .cta-buttons .btn { width: 100%; }
    }


/* pipeline image & layout guards */
html, body { overflow-x: clip; }
img { max-width: 100%; height: auto; }
img.site-logo { height: 40px; width: auto; max-width: 240px; object-fit: contain; flex: none; }
header .logo a { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
img.hero-visual { width: 100%; max-width: 560px; height: auto; object-fit: cover; border-radius: 16px; display: block; margin-inline: auto; }
img[class^="strip-"], img[class*=" strip-"] { width: 100%; height: auto; display: block; border-radius: 12px; object-fit: cover; }
/* 合规声明块（zb-disclaimer，全站 footer） */
.zb-disclaimer { margin-top: 18px !important; padding: 14px 0 0 0 !important; border-top: 1px solid rgba(128,128,128,.25) !important; font-size: .72rem !important; line-height: 1.7 !important; opacity: .85 !important; display: block !important; text-align: left !important; width: 100% !important; clear: both !important; }
.zb-disclaimer .zb-18 { display: inline-block !important; padding: 2px 10px !important; border: 1.5px solid currentColor !important; border-radius: 6px !important; font-weight: 800 !important; letter-spacing: 1px !important; margin: 0 0 10px 0 !important; font-size: .78rem !important; }
.zb-disclaimer p { display: block !important; margin: 5px 0 !important; padding: 0 !important; color: inherit !important; font-size: .72rem !important; line-height: 1.7 !important; }
.zb-disclaimer p:last-child { margin-bottom: 0 !important; }