/* ====== RESET & BASE ====== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1a1a2e;
    background: #ffffff;
    line-height: 1.7;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ====== COLORS ====== */
:root {
    --gold: #C9A84C;
    --gold-light: #E8D5A3;
    --gold-dark: #A8882E;
    --gold-gradient: linear-gradient(135deg, #C9A84C, #D4B96A);
    --blue: #1B3A5C;
    --blue-light: #2C5282;
    --blue-dark: #0F2440;
    --white: #FFFFFF;
    --off-white: #F8F6F2;
    --gray-50: #FAFAFA;
    --gray-100: #F5F3EF;
    --gray-200: #E8E4DC;
    --gray-300: #C8C2B5;
    --gray-600: #6B6258;
    --gray-800: #2D2A25;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 20px;
}

/* ====== UTILITY ====== */
.gold { background: var(--gold-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--gold-light);
    color: var(--gold-dark);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.section-title {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--blue-dark);
}
.section-desc {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}
.mobile-only { display: none; }
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}
.btn-primary {
    background: var(--gold-gradient);
    color: var(--white);
    border-color: var(--gold);
    box-shadow: 0 4px 16px rgba(201,168,76,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201,168,76,0.4);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}
.btn-lg { padding: 18px 48px; font-size: 1.1rem; }
.btn-full { width: 100%; }

/* ====== NAV ====== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}
.navbar.scrolled {
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    padding: 10px 0;
}
.navbar.scrolled .nav-logo { color: var(--blue-dark); }
.navbar.scrolled .nav-link { color: var(--gray-800); }
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    transition: color 0.3s;
}
.logo-icon { font-size: 1.8rem; color: var(--gold); }
.nav-menu { display: flex; align-items: center; gap: 36px; }
.nav-link {
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.3s;
}
.nav-link:hover::after { width: 100%; }
.nav-link:hover { color: var(--gold); }
.nav-cta {
    padding: 10px 24px;
    background: var(--gold-gradient);
    border-radius: 50px;
    color: var(--white) !important;
    font-weight: 600;
}
.nav-cta::after { display: none; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(201,168,76,0.3); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
    border-radius: 2px;
}
.navbar.scrolled .nav-toggle span { background: var(--blue-dark); }

/* ====== HERO ====== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--blue-dark);
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 50%, rgba(201,168,76,0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 30%, rgba(43,82,130,0.3) 0%, transparent 50%),
        radial-gradient(ellipse 100% 80% at 50% 100%, rgba(201,168,76,0.05) 0%, transparent 60%);
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 0 80px;
}
.hero-badge {
    display: inline-block;
    padding: 8px 24px;
    border: 1px solid rgba(201,168,76,0.3);
    border-radius: 50px;
    color: var(--gold-light);
    font-size: 0.85rem;
    letter-spacing: 2px;
    margin-bottom: 32px;
    backdrop-filter: blur(4px);
}
.hero-title {
    font-size: 4rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 80px; flex-wrap: wrap; }
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.5); }

/* ====== SERVICES ====== */
.services { background: var(--white); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--off-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gold-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gold-light);
}
.service-card:hover::before { transform: scaleX(1); }
.card-icon span { font-size: 2.4rem; display: block; margin-bottom: 20px; }
.service-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--blue-dark);
}
.service-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ====== POLICY BLOG ====== */
.blog { background: var(--gray-50); }
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
    position: relative;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--gold-light);
}
.blog-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gold-light);
    color: var(--gold-dark);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.blog-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--blue-dark);
    line-height: 1.5;
    margin-bottom: 12px;
}
.blog-card h3 a {
    color: var(--blue-dark);
    text-decoration: none;
    transition: color 0.3s;
}
.blog-card h3 a:hover {
    color: var(--gold-dark);
}
.blog-excerpt {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}
.blog-tag {
    font-size: 0.78rem;
    padding: 3px 10px;
    background: var(--blue);
    color: var(--white);
    border-radius: 4px;
}
.blog-date {
    font-size: 0.78rem;
    color: var(--gray-300);
}

/* ====== ABOUT ====== */
.about { background: var(--off-white); }
.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image-placeholder {
    background: var(--blue-dark);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.about-image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 40%, rgba(201,168,76,0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(43,82,130,0.2) 0%, transparent 50%);
}
.placeholder-logo {
    font-size: 4rem;
    font-weight: 900;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}
.placeholder-tagline {
    font-size: 1rem;
    color: rgba(255,255,255,0.5);
    letter-spacing: 4px;
    margin-top: 12px;
    position: relative;
    z-index: 1;
}
.about-content .section-title { font-size: 2rem; }
.about-text {
    color: var(--gray-600);
    margin-bottom: 16px;
    font-size: 1rem;
}
.about-features { margin-top: 24px; }
.about-feature { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; font-size: 0.95rem; color: var(--gray-800); }
.feature-check {
    display: inline-flex;
    width: 24px;
    height: 24px;
    background: var(--gold-gradient);
    color: white;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* ====== ADVANTAGES ====== */
.advantages { background: var(--white); }
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.advantage-card {
    text-align: center;
    padding: 40px 24px;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    background: var(--off-white);
}
.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.adv-num {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}
.advantage-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--blue-dark);
}
.advantage-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ====== CTA BANNER ====== */
.cta-banner {
    background: var(--blue-dark);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(201,168,76,0.08) 0%, transparent 60%);
}
.cta-content { position: relative; z-index: 1; }
.cta-content h2 {
    font-size: 2.4rem;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
}
.cta-content p {
    color: rgba(255,255,255,0.6);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

/* ====== CONTACT ====== */
.contact { background: var(--off-white); }
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item h4 { font-size: 0.9rem; color: var(--gray-600); font-weight: 500; margin-bottom: 4px; }
.contact-link {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--blue-dark);
    transition: color 0.3s;
}
.contact-link:hover { color: var(--gold-dark); }
.contact-tip { font-size: 0.8rem; color: var(--gray-300); display: block; }
.contact-wechat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gold-light);
}
.wechat-qr {
    width: 180px;
    height: 180px;
    margin: 0 auto 20px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--gold-light);
    background: var(--white);
}
.wechat-qr img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.wechat-id {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.wechat-id .label { font-size: 0.85rem; color: var(--gray-600); }
.wechat-id .value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--blue-dark);
    letter-spacing: 1px;
}
.copy-btn {
    padding: 4px 14px;
    background: var(--gold-gradient);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s;
}
.copy-btn:hover { transform: scale(1.05); }

.contact-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}
.contact-form h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--blue-dark);
    margin-bottom: 24px;
}
.form-group { margin-bottom: 16px; }
.form-input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.3s;
    background: var(--off-white);
    color: var(--gray-800);
}
.form-input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-note { font-size: 0.85rem; color: var(--gray-300); margin-top: 12px; text-align: center; }

/* ====== FOOTER ====== */
.footer { background: var(--blue-dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-logo { font-size: 1.3rem; font-weight: 800; color: var(--white); }
.footer-desc { margin-top: 12px; font-size: 0.9rem; line-height: 1.7; }
.footer-content h4 { color: var(--white); font-size: 1rem; margin-bottom: 16px; }
.footer-content ul li { margin-bottom: 10px; }
.footer-content ul li a { font-size: 0.9rem; transition: color 0.3s; }
.footer-content ul li a:hover { color: var(--gold); }
.footer-contact p { font-size: 0.9rem; margin-bottom: 8px; }
.footer-contact a { color: rgba(255,255,255,0.7); }
.footer-contact a:hover { color: var(--gold); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.3);
}

/* ====== ANIMATIONS ====== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.service-card, .advantage-card { animation: fadeInUp 0.6s ease forwards; }
.service-card:nth-child(2) { animation-delay: 0.1s; }
.service-card:nth-child(3) { animation-delay: 0.2s; }
.service-card:nth-child(4) { animation-delay: 0.3s; }
.service-card:nth-child(5) { animation-delay: 0.4s; }
.service-card:nth-child(6) { animation-delay: 0.5s; }

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .mobile-only { display: inline; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--blue-dark);
        flex-direction: column;
        padding: 80px 40px;
        gap: 24px;
        transition: right 0.3s ease;
        z-index: 999;
    }
    .nav-menu.active { right: 0; }
    .nav-link { color: rgba(255,255,255,0.85); font-size: 1.1rem; }
    .nav-toggle { display: flex; z-index: 1001; position: relative; }

    .hero-title { font-size: 2.4rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-stats { gap: 32px; }

    .section-title { font-size: 1.8rem; }

    .services-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: 1fr; }

    .about-wrapper { grid-template-columns: 1fr; gap: 32px; }
    .about-image-placeholder { min-height: 250px; padding: 40px; }

    .contact-wrapper { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }

    .cta-content h2 { font-size: 1.6rem; }
    .btn-lg { padding: 14px 32px; font-size: 1rem; }

    .footer-content { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .stat-num { font-size: 1.8rem; }
}