/* roulang page: index */
:root {
    --bg-primary: #080D1A;
    --bg-secondary: #0D1528;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.10);
    --primary-blue: #2E7CF6;
    --primary-highlight: #57A0FF;
    --accent-red: #D62839;
    --accent-gold: #E8B054;
    --text-primary: #F0F4FA;
    --text-secondary: #9AA9BC;
    --text-muted: #5E6D82;
    --success: #2ED47A;
    --error: #F7685C;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 8px 32px rgba(0,0,0,0.35);
    --glow-blue: 0 0 20px rgba(46,124,246,0.4), 0 4px 20px rgba(46,124,246,0.25);
    --glow-blue-strong: 0 0 30px rgba(87,160,255,0.6);
    --max-width: 1280px;
    --spacing-lg: 96px;
    --spacing-md: 56px;
    --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

a {
    color: var(--primary-highlight);
    text-decoration: none;
    transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease, transform 0.2s ease;
}

a:hover {
    color: #fff;
}

a:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 3px;
    border-radius: 4px;
}

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

button {
    font-family: var(--font-family);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input {
    font-family: var(--font-family);
    font-size: 1rem;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ========== 导航栏 ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(10,15,30,0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
    background: rgba(8,12,24,0.92);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #2E7CF6, #57A0FF);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 16px rgba(46,124,246,0.4);
    font-size: 16px;
    color: #fff;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.logo-domain {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    display: block;
    line-height: 1;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.main-nav a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 8px 4px;
    position: relative;
    white-space: nowrap;
    transition: color 0.3s ease;
}

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

.main-nav a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-highlight));
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
    box-shadow: 0 0 8px rgba(46,124,246,0.5);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    transform: scaleX(1);
}

.main-nav a.active {
    color: var(--text-primary);
}

.nav-cta {
    margin-left: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 12px;
    transition: all 0.3s ease;
    min-height: 44px;
    white-space: nowrap;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-highlight));
    color: #fff;
    box-shadow: var(--glow-blue);
}

.btn-primary:hover {
    color: #fff;
    box-shadow: var(--glow-blue-strong);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 10px rgba(46,124,246,0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.4);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.btn-outline:active {
    transform: scale(0.98);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-gold {
    background: linear-gradient(135deg, #E8B054, #F5C97A);
    color: #0D1528;
    box-shadow: 0 0 20px rgba(232,176,84,0.3);
}

.btn-gold:hover {
    color: #0D1528;
    box-shadow: 0 0 30px rgba(232,176,84,0.5);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--text-primary);
    border-radius: 8px;
    transition: background 0.3s ease;
}

.mobile-toggle:hover {
    background: rgba(255,255,255,0.08);
    color: var(--text-primary);
}

/* 移动端导航抽屉 */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(8,12,24,0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    z-index: 999;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 40px 24px;
}

.mobile-drawer.open {
    display: flex;
}

.mobile-drawer a {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 16px 32px;
    text-align: center;
    width: 100%;
    max-width: 360px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.mobile-drawer a:hover,
.mobile-drawer a.active {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}

.mobile-drawer .btn {
    margin-top: 24px;
    width: 100%;
    max-width: 360px;
}

.mobile-drawer-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-secondary);
    border-radius: 8px;
}

.mobile-drawer-close:hover {
    background: rgba(255,255,255,0.08);
    color: var(--text-primary);
}

/* ========== Hero ========== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 720px;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: 80px;
    background: var(--bg-primary);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8,13,26,0.92) 0%, rgba(8,13,26,0.75) 50%, rgba(8,13,26,0.88) 100%);
}

.hero-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    z-index: 0;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(46,124,246,0.15);
    border: 1px solid rgba(46,124,246,0.3);
    color: var(--primary-highlight);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-badge i {
    font-size: 0.75rem;
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-highlight), #7BB4FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 460px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 56px;
}

.hero-stat {
    text-align: left;
}

.hero-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.hero-stat-value span {
    color: var(--primary-highlight);
}

.hero-stat-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ========== 登录面板 ========== */
.login-panel-wrap {
    position: relative;
}

.login-panel {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.login-panel::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(46,124,246,0.15), transparent 70%);
    pointer-events: none;
}

.login-panel-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-panel-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-panel-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.login-tabs {
    display: flex;
    background: rgba(255,255,255,0.06);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 24px;
    gap: 4px;
}

.login-tab {
    flex: 1;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    transition: all 0.3s ease;
    background: transparent;
}

.login-tab:hover {
    color: var(--text-primary);
}

.login-tab.active {
    background: rgba(46,124,246,0.25);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(46,124,246,0.2);
}

.login-tab-pane {
    display: none;
}

.login-tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input-wrap {
    position: relative;
}

.form-input {
    width: 100%;
    height: 46px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 10px;
    padding: 0 16px;
    color: var(--text-primary);
    transition: all 0.3s ease;
    font-size: 0.9375rem;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(46,124,246,0.15);
}

.form-input-wrap i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-input-wrap .form-input {
    padding-left: 42px;
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 0.8125rem;
}

.form-row a {
    color: var(--primary-highlight);
    font-size: 0.8125rem;
}

.form-row a:hover {
    color: #fff;
    text-decoration: underline;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    cursor: pointer;
}

.form-checkbox input {
    accent-color: var(--primary-blue);
}

.login-submit {
    width: 100%;
    height: 46px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-highlight));
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 600;
    box-shadow: var(--glow-blue);
    transition: all 0.3s ease;
}

.login-submit:hover {
    box-shadow: var(--glow-blue-strong);
    transform: translateY(-1px);
}

.login-submit:active {
    transform: scale(0.98);
}

.login-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.login-divider::before,
.login-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.08);
}

.login-register {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.login-register a {
    color: var(--primary-highlight);
    font-weight: 600;
}

.login-register a:hover {
    text-decoration: underline;
    color: #fff;
}

.login-security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.login-security i {
    color: var(--success);
}

/* ========== 时间线 ========== */
.section {
    padding: var(--spacing-lg) 0;
}

.section-alt {
    background: var(--bg-secondary);
    position: relative;
}

.section-header {
    margin-bottom: 48px;
    max-width: 680px;
}

.section-header .section-kicker {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--primary-highlight);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    display: block;
}

.section-header h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    position: relative;
    padding-left: 20px;
}

.section-header h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, var(--primary-blue), var(--primary-highlight));
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(46,124,246,0.5);
}

.section-header p {
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--primary-blue), var(--primary-highlight), transparent);
    transform: translateX(-50%);
    box-shadow: 0 0 12px rgba(46,124,246,0.3);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 24px 48px;
    transition: background 0.3s ease;
    border-radius: 16px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-item:hover {
    background: rgba(255,255,255,0.03);
}

.timeline-dot {
    position: absolute;
    top: 40px;
    width: 16px;
    height: 16px;
    background: var(--bg-primary);
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(46,124,246,0.6);
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -9px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-step {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 8px;
}

.timeline-item:nth-child(odd) .timeline-step {
    color: var(--primary-highlight);
}

.timeline-target h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.timeline-target p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========== 亮点卡片 ========== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
    transition: left 0.6s ease;
}

.feature-card:hover::after {
    left: 100%;
}

.feature-card:hover {
    border-color: rgba(255,255,255,0.18);
    box-shadow: 0 12px 40px rgba(0,0,0,0.45);
    transform: translateY(-4px);
}

.feature-card.featured-large {
    grid-column: span 2;
}

.feature-card.featured-third {
    grid-column: span 1;
}

.feature-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(46,124,246,0.2), rgba(46,124,246,0.05));
    border: 1px solid rgba(46,124,246,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary-highlight);
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(46,124,246,0.15);
}

.feature-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.feature-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-card-image {
    margin-top: 20px;
    border-radius: 12px;
    overflow: hidden;
    height: 140px;
    width: 100%;
    object-fit: cover;
}

.feature-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-card-image img {
    transform: scale(1.05);
}

/* ========== 对比表 ========== */
.compare-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.compare-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(46,124,246,0.08), transparent 70%);
    pointer-events: none;
}

.compare-table-wrap {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

.compare-table th,
.compare-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 0.9375rem;
}

.compare-table thead th {
    background: rgba(255,255,255,0.08);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    position: relative;
}

.compare-table thead th:last-child {
    background: rgba(232,176,84,0.08);
    border-top: 3px solid var(--accent-gold);
    box-shadow: 0 -2px 12px rgba(232,176,84,0.15) inset;
}

.compare-table thead th:last-child .badge-recommend {
    position: absolute;
    top: 10px;
    right: 12px;
}

.compare-table tbody tr:last-child td {
    border-bottom: none;
}

.compare-table tbody tr:hover td {
    background: rgba(255,255,255,0.03);
}

.compare-table td:last-child {
    background: rgba(232,176,84,0.03);
}

.badge-recommend {
    display: inline-block;
    background: var(--accent-red);
    color: #fff;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.check-yes {
    color: var(--success);
    font-size: 1rem;
}

.check-no {
    color: var(--text-muted);
    font-size: 1rem;
}

.feature-name {
    font-weight: 600;
    color: var(--text-primary);
}

.compare-note {
    margin-top: 16px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-align: center;
}

/* ========== CTA横幅 ========== */
.cta-banner {
    background: linear-gradient(135deg, #0D1528 0%, #141E3C 50%, #1A2344 100%);
    border-radius: 20px;
    padding: 64px 48px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin: 0 24px;
}

.cta-banner::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -20%;
    width: 300px;
    height: 400px;
    background: radial-gradient(circle, rgba(232,176,84,0.12), transparent 70%);
    pointer-events: none;
}

.cta-banner::after {
    content: "";
    position: absolute;
    bottom: -60%;
    left: -10%;
    width: 200px;
    height: 300px;
    background: radial-gradient(circle, rgba(46,124,246,0.1), transparent 70%);
    pointer-events: none;
}

.cta-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-banner h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-banner p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.cta-banner-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ========== 资讯列表 ========== */
.news-section {
    background: var(--bg-primary);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.news-item {
    display: flex;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    gap: 20px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: all 0.35s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.news-item:hover {
    border-color: rgba(255,255,255,0.18);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}

.news-thumb {
    flex-shrink: 0;
    width: 96px;
    height: 96px;
    border-radius: 12px;
    overflow: hidden;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-item:hover .news-thumb img {
    transform: scale(1.08);
}

.news-body {
    flex: 1;
    min-width: 0;
}

.news-title {
    font-size: 0.9375rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 6px;
}

.news-title a {
    color: var(--text-primary);
}

.news-title a:hover {
    color: var(--primary-highlight);
}

.news-summary {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.news-category {
    display: inline-block;
    background: rgba(46,124,246,0.15);
    color: var(--primary-highlight);
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 600;
}

.news-empty {
    grid-column: 1/-1;
    text-align: center;
    padding: 60px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}

.news-empty i {
    font-size: 2.4rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.news-empty p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ========== FAQ ========== */
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255,255,255,0.15);
}

.faq-item.open {
    border-color: rgba(46,124,246,0.3);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    background: transparent;
    transition: color 0.3s ease;
    min-height: 56px;
    gap: 16px;
}

.faq-question:hover {
    color: var(--primary-highlight);
}

.faq-icon {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.faq-icon::before {
    width: 14px;
    height: 2px;
}

.faq-icon::after {
    width: 2px;
    height: 14px;
}

.faq-item.open .faq-icon::after {
    transform: rotate(90deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 页脚 ========== */
.site-footer {
    background: #0A0F1E;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 64px;
    padding-bottom: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    padding-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-highlight));
    border-radius: 2px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-col ul a:hover {
    color: var(--primary-highlight);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.footer-contact i {
    color: var(--primary-highlight);
    margin-top: 4px;
    font-size: 0.875rem;
    width: 16px;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 24px 0;
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding-left: 24px;
    padding-right: 24px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer-bottom-links a:hover {
    color: var(--primary-highlight);
}

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
    .feature-card.featured-large {
        grid-column: span 2;
    }
    .feature-card.featured-third {
        grid-column: span 1;
    }
}

@media (max-width: 991px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
        padding-top: 40px;
    }

    .hero-content {
        max-width: none;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .login-panel-wrap {
        max-width: 480px;
        margin: 0 auto;
        width: 100%;
    }

    .main-nav {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .timeline::before {
        left: 24px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 72px;
        padding-right: 24px;
        margin-bottom: 16px;
    }

    .timeline-item:nth-child(odd) {
        left: 0;
        text-align: left;
    }

    .timeline-item:nth-child(even) {
        left: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-dot {
        right: auto;
        left: 16px;
    }

    .timeline-item:nth-child(even) .timeline-dot {
        left: 16px;
    }

    .feature-grid {
        grid-template-columns: 1fr 1fr;
    }

    .feature-card.featured-large {
        grid-column: span 2;
    }

    .feature-card.featured-third {
        grid-column: span 1;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .section {
        padding: var(--spacing-md) 0;
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .header-inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero {
        padding-top: 100px;
        padding-bottom: 56px;
        min-height: auto;
    }

    .hero-inner {
        padding-left: 16px;
        padding-right: 16px;
        gap: 32px;
    }

    .hero-title {
        font-size: clamp(1.8rem, 6vw, 2.2rem);
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 32px;
    }

    .hero-stat {
        text-align: center;
        flex: 1;
        min-width: 100px;
    }

    .login-panel {
        padding: 28px 20px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .feature-card.featured-large,
    .feature-card.featured-third {
        grid-column: span 1;
    }

    .compare-table-wrap {
        overflow-x: auto;
    }

    .compare-table {
        min-width: 640px;
    }

    .cta-banner {
        padding: 40px 24px;
        margin: 0 16px;
    }

    .cta-banner-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-banner-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .news-item {
        flex-direction: column;
        padding: 16px;
    }

    .news-thumb {
        width: 100%;
        height: 140px;
        margin-bottom: 12px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding-left: 16px;
        padding-right: 16px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 0.9375rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 520px) {
    .logo-text {
        font-size: 1.05rem;
    }

    .logo-domain {
        font-size: 0.6875rem;
    }

    .section-header h2 {
        font-size: 1.4rem;
        padding-left: 16px;
    }

    .section-header h2::before {
        width: 3px;
        height: 18px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .timeline-item {
        padding-left: 64px;
        padding-right: 16px;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
    }

    .timeline::before {
        left: 20px;
    }

    .faq-question {
        font-size: 0.9375rem;
        padding: 18px 16px;
    }

    .faq-answer-inner {
        padding: 0 16px 18px;
    }
}

@media (max-width: 380px) {
    .timeline-item {
        padding-left: 56px;
        padding-right: 8px;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 8px;
    }

    .timeline::before {
        left: 16px;
    }
}

/* roulang page: category1 */
:root {
    --bg-primary: #080D1A;
    --bg-secondary: #0D1528;
    --bg-tertiary: #111B30;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.10);
    --glass-border-hover: rgba(255, 255, 255, 0.18);
    --primary: #2E7CF6;
    --primary-light: #57A0FF;
    --primary-glow: rgba(46, 124, 246, 0.4);
    --accent-red: #D62839;
    --accent-gold: #E8B054;
    --text-primary: #F0F4FA;
    --text-secondary: #9AA9BC;
    --text-muted: #5E6D82;
    --success: #2ED47A;
    --error: #F7685C;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.45);
    --shadow-btn: 0 0 20px rgba(46, 124, 246, 0.4), 0 4px 20px rgba(46, 124, 246, 0.25);
    --container-max: 1280px;
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 96px 0;
    position: relative;
}
.section-head {
    margin-bottom: 48px;
    max-width: 720px;
}
.section-head .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-light);
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    padding: 4px 12px;
    background: rgba(46, 124, 246, 0.1);
    border-radius: 100px;
    border: 1px solid rgba(46, 124, 246, 0.25);
}
.section-head h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    position: relative;
    padding-left: 16px;
}
.section-head h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 26px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    box-shadow: 0 0 12px rgba(46, 124, 246, 0.6);
}
.section-head p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    transition: var(--transition);
    min-height: 44px;
    min-width: 44px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
    box-shadow: 0 0 30px rgba(87, 160, 255, 0.6);
    transform: translateY(-2px) scale(1.02);
    color: #fff;
}
.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 15px rgba(46, 124, 246, 0.3);
}
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.65);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}
.btn-lg {
    padding: 15px 36px;
    font-size: 1.0625rem;
    border-radius: 14px;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(10, 15, 30, 0.55);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}
.site-header.scrolled {
    background: rgba(8, 12, 24, 0.93);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
    border-bottom-color: rgba(255, 255, 255, 0.08);
}
.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    height: 100%;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.9375rem;
    box-shadow: 0 0 16px rgba(46, 124, 246, 0.45);
    transition: var(--transition);
}
.logo:hover .logo-mark {
    box-shadow: 0 0 24px rgba(87, 160, 255, 0.65);
    transform: rotate(-5deg) scale(1.05);
}
.logo-text-wrap { line-height: 1.2; }
.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    display: block;
}
.logo-domain {
    font-size: 0.6875rem;
    color: var(--text-muted);
    display: block;
    letter-spacing: 0.02em;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}
.main-nav a {
    position: relative;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 2px;
    transition: var(--transition);
}
.main-nav a:hover {
    color: var(--text-primary);
}
.main-nav a.active {
    color: var(--text-primary);
}
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    box-shadow: 0 0 10px rgba(46, 124, 246, 0.6);
}
.nav-login-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 0 14px rgba(46, 124, 246, 0.35);
    transition: var(--transition);
    border: 1px solid transparent;
}
.nav-login-btn:hover {
    box-shadow: 0 0 24px rgba(87, 160, 255, 0.55);
    transform: translateY(-1px);
    color: #fff;
}
.nav-login-btn:active {
    transform: scale(0.97);
}
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1.125rem;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
}

.page-hero {
    position: relative;
    padding: 160px 0 100px;
    background: var(--bg-secondary);
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.4;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8, 13, 26, 0.92) 0%, rgba(8, 13, 26, 0.75) 50%, rgba(8, 13, 26, 0.85) 100%);
}
.hero-cnt {
    position: relative;
    z-index: 2;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: var(--text-secondary);
    transition: var(--transition);
}
.breadcrumb a:hover {
    color: var(--primary-light);
}
.breadcrumb i {
    font-size: 0.625rem;
    color: var(--text-muted);
}
.breadcrumb .current {
    color: var(--text-primary);
}
.hero-cnt h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 640px;
}
.hero-cnt h1 .highlight {
    color: var(--primary-light);
    position: relative;
}
.hero-cnt .hero-sub {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 36px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.hero-badge-row {
    display: flex;
    gap: 12px;
    margin-top: 36px;
    flex-wrap: wrap;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.hero-badge i {
    color: var(--primary-light);
}

.methods-section {
    background: var(--bg-primary);
}
.methods-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}
.methods-text .method-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    margin-bottom: 16px;
    transition: var(--transition);
}
.methods-text .method-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--glass-border-hover);
    transform: translateX(4px);
    box-shadow: var(--shadow-card);
}
.method-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(46, 124, 246, 0.15);
    border: 1px solid rgba(46, 124, 246, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    color: var(--primary-light);
    flex-shrink: 0;
}
.method-item h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.method-item p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.methods-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
}
.methods-visual img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    transition: var(--transition);
}
.methods-visual:hover img {
    transform: scale(1.03);
}
.methods-visual .visual-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(8, 13, 26, 0.85));
    display: flex;
    align-items: flex-end;
    padding: 24px;
}
.visual-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 100px;
    background: rgba(8, 13, 26, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.8125rem;
    color: var(--text-primary);
    backdrop-filter: blur(8px);
}
.visual-badge i {
    color: var(--success);
}

.steps-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
.steps-section::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(46, 124, 246, 0.12), transparent 70%);
    border-radius: 50%;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}
.step-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}
.step-card:hover {
    transform: translateY(-6px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-card-hover);
    background: rgba(255, 255, 255, 0.08);
}
.step-num {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 0 20px rgba(46, 124, 246, 0.4);
}
.step-card:nth-child(n+2) .step-num {
    background: linear-gradient(135deg, var(--bg-tertiary), #1c2a45);
    box-shadow: 0 0 16px rgba(46, 124, 246, 0.2);
}
.step-card h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.step-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.65;
}
.step-connector {
    position: absolute;
    top: 42px;
    right: -24px;
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, rgba(46, 124, 246, 0.5), transparent);
}
.step-card:last-child .step-connector { display: none; }

.security-section { background: var(--bg-primary); }
.sec-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.sec-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.sec-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
    opacity: 0;
    transition: var(--transition);
}
.sec-card:hover::before {
    opacity: 1;
}
.sec-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--glass-border-hover);
}
.sec-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(46, 124, 246, 0.12);
    border: 1px solid rgba(46, 124, 246, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    transition: var(--transition);
}
.sec-card:hover .sec-icon {
    background: rgba(46, 124, 246, 0.2);
    box-shadow: 0 0 20px rgba(46, 124, 246, 0.3);
}
.sec-card h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.sec-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.prep-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
.prep-section::after {
    content: '';
    position: absolute;
    bottom: -160px;
    left: -120px;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(214, 40, 57, 0.08), transparent 70%);
    border-radius: 50%;
}
.prep-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.prep-visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
    position: relative;
}
.prep-visual img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition);
}
.prep-visual:hover img {
    transform: scale(1.04);
}
.prep-visual .prep-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    border-radius: 100px;
    background: rgba(8, 13, 26, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.75rem;
    color: var(--text-primary);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 6px;
}
.prep-tag i { color: var(--accent-gold); }
.prep-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.prep-item {
    display: flex;
    gap: 16px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}
.prep-item:hover {
    border-color: var(--glass-border-hover);
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(4px);
}
.prep-item-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(46, 124, 246, 0.12);
    border: 1px solid rgba(46, 124, 246, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: var(--primary-light);
    flex-shrink: 0;
}
.prep-item h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.prep-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-section { background: var(--bg-primary); }
.faq-wrap {
    max-width: 760px;
    margin: 0 auto;
}
.faq-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: var(--glass-border-hover);
}
.faq-item.open {
    border-color: rgba(46, 124, 246, 0.35);
    background: rgba(255, 255, 255, 0.06);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition);
}
.faq-question:hover {
    color: var(--primary-light);
}
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-answer {
    max-height: 300px;
}
.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.75;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 16px;
}

.cta-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
.cta-band {
    position: relative;
    border-radius: 24px;
    padding: 72px 56px;
    background: linear-gradient(135deg, rgba(46, 124, 246, 0.15), rgba(214, 40, 57, 0.1));
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    text-align: center;
}
.cta-band::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(46, 124, 246, 0.3), transparent 70%);
    border-radius: 50%;
}
.cta-band::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -60px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(214, 40, 57, 0.2), transparent 70%);
    border-radius: 50%;
}
.cta-band h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}
.cta-band p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}
.cta-band .btn {
    position: relative;
    z-index: 1;
}

.site-footer {
    background: #0A0F1E;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 64px 0 0;
}
.footer-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
}
.footer-col h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: var(--transition);
}
.footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.footer-contact i {
    color: var(--text-muted);
    width: 16px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
}
.footer-bottom-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.footer-bottom-links {
    display: flex;
    gap: 24px;
}
.footer-bottom-links a {
    font-size: 0.8125rem;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-bottom-links a:hover {
    color: var(--text-secondary);
}

@media (max-width: 1199px) {
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .sec-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991px) {
    .methods-grid { grid-template-columns: 1fr; gap: 40px; }
    .methods-visual img { height: 340px; }
    .prep-grid { grid-template-columns: 1fr; gap: 40px; }
    .prep-visual img { height: 320px; }
    .hero-cnt h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
    .header-actions .btn-login {
        display: none;
    }
}
@media (max-width: 767px) {
    .section { padding: 56px 0; }
    .container { padding: 0 16px; }
    .header-inner { padding: 0 16px; }
    .nav-toggle { display: flex; }
    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(8, 12, 24, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        z-index: 999;
    }
    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .main-nav a {
        display: block;
        width: 100%;
        padding: 14px 16px;
        border-radius: var(--radius-sm);
        font-size: 1rem;
        color: var(--text-primary);
    }
    .main-nav a:hover {
        background: rgba(255, 255, 255, 0.06);
        color: var(--text-primary);
    }
    .main-nav a.active::after {
        display: none;
    }
    .main-nav a.active {
        background: rgba(46, 124, 246, 0.12);
        color: var(--primary-light);
    }
    .page-hero { padding: 130px 0 64px; }
    .hero-cnt h1 { font-size: clamp(1.75rem, 6vw, 2.4rem); }
    .hero-cnt .hero-sub { font-size: 0.9375rem; }
    .hero-actions .btn { width: 100%; }
    .hero-badge-row { flex-wrap: wrap; }
    .steps-grid { grid-template-columns: 1fr; gap: 16px; }
    .sec-grid { grid-template-columns: 1fr; gap: 16px; }
    .step-connector { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom-inner { flex-direction: column; text-align: center; justify-content: center; }
    .cta-band { padding: 48px 24px; }
    .cta-band .btn { width: 100%; }
    .section-head { margin-bottom: 32px; }
    .method-item { padding: 18px; }
    .prep-item { padding: 16px; }
}
@media (max-width: 480px) {
    .methods-visual img { height: 240px; }
    .prep-visual img { height: 220px; }
    .logo-text { font-size: 1.0625rem; }
    .logo-domain { font-size: 0.625rem; }
    .header-inner { gap: 12px; }
    .faq-question { padding: 16px; font-size: 0.9375rem; }
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root {
    --bg-primary: #080D1A;
    --bg-secondary: #0D1528;
    --bg-deep: #0A0F1E;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-bg-hover: rgba(255,255,255,0.08);
    --glass-border: rgba(255,255,255,0.10);
    --glass-border-hover: rgba(255,255,255,0.18);
    --accent-blue: #2E7CF6;
    --accent-blue-light: #57A0FF;
    --accent-red: #D62839;
    --accent-gold: #E8B054;
    --text-primary: #F0F4FA;
    --text-secondary: #9AA9BC;
    --text-muted: #5E6D82;
    --success: #2ED47A;
    --error: #F7685C;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 4px 16px rgba(0,0,0,0.25);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.45);
    --glow-blue: 0 0 20px rgba(46,124,246,0.4), 0 4px 20px rgba(46,124,246,0.25);
    --transition: 0.3s ease;
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* ============ Reset / Base ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    font-size: 16px;
}
body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
a {
    color: var(--accent-blue-light);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--text-primary);
}
img {
    max-width: 100%;
    display: block;
}
button {
    font-family: var(--font-family);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}
input {
    font-family: var(--font-family);
}
:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 3px;
    border-radius: 4px;
}
::selection {
    background: rgba(46,124,246,0.4);
    color: #fff;
}

/* ============ 容器 ============ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.article-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 28px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    white-space: nowrap;
    min-width: 44px;
    line-height: 1;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-light));
    color: #fff;
    box-shadow: var(--glow-blue);
}
.btn-primary:hover {
    color: #fff;
    transform: scale(1.02);
    box-shadow: 0 0 30px rgba(87,160,255,0.6), 0 4px 24px rgba(46,124,246,0.35);
}
.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 12px rgba(46,124,246,0.3);
}
.btn-secondary {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.35);
    color: var(--text-primary);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.10);
    border-color: rgba(255,255,255,0.6);
    color: #fff;
    transform: translateY(-1px);
}
.btn-sm {
    height: 38px;
    padding: 0 20px;
    font-size: 0.875rem;
    border-radius: 10px;
}
.btn-lg {
    height: 54px;
    padding: 0 42px;
    font-size: 1.05rem;
    border-radius: 14px;
}
.btn-block {
    width: 100%;
}

/* ============ 导航 ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(10,15,30,0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.site-header.scrolled {
    background: rgba(8,12,24,0.92);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    border-bottom-color: rgba(255,255,255,0.04);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-light));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    box-shadow: 0 0 14px rgba(46,124,246,0.5);
}
.logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}
.main-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 72px;
    padding: 0 16px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition);
}
.main-nav a:hover {
    color: var(--text-primary);
}
.main-nav a.active {
    color: var(--text-primary);
}
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light));
    box-shadow: 0 0 12px rgba(46,124,246,0.7);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 1.1rem;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.nav-toggle:hover {
    border-color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.10);
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(8,12,24,0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 16px 24px 24px;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.mobile-menu.open {
    display: flex;
}
.mobile-menu a:not(.btn) {
    display: block;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition);
}
.mobile-menu a:not(.btn):hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}
.mobile-menu a.active {
    color: var(--text-primary);
    background: rgba(46,124,246,0.12);
}
.mobile-menu .btn {
    margin-top: 12px;
}

/* ============ 文章页主体 ============ */
.article-page {
    padding-top: 72px;
    min-height: 100vh;
    background: var(--bg-primary);
    position: relative;
}
.article-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 300px;
    background: radial-gradient(ellipse at 30% 0%, rgba(46,124,246,0.12), transparent 70%),
                radial-gradient(ellipse at 80% 0%, rgba(214,40,57,0.05), transparent 60%);
    pointer-events: none;
    z-index: 0;
}
.article-page .article-container {
    position: relative;
    z-index: 1;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 48px 0 24px;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition);
}
.breadcrumb a:hover {
    color: var(--accent-blue-light);
}
.breadcrumb-sep {
    color: var(--text-muted);
    font-size: 0.85rem;
}
.breadcrumb-current {
    color: var(--text-secondary);
    max-width: 340px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 文章头部 */
.article-header {
    padding: 16px 0 32px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    margin-bottom: 32px;
}
.article-category-badge {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 14px;
    border-radius: 6px;
    background: rgba(46,124,246,0.15);
    border: 1px solid rgba(46,124,246,0.3);
    color: var(--accent-blue-light);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.article-header h1 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 20px;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta i {
    color: var(--accent-blue);
    font-size: 0.85rem;
}

/* 正文 */
.article-content {
    padding-bottom: 40px;
}
.article-content p {
    margin-bottom: 1.5em;
    color: var(--text-primary);
    font-size: 1.0625rem;
    line-height: 1.8;
}
.article-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 2.2em 0 0.8em;
    color: var(--text-primary);
    position: relative;
    padding-left: 16px;
}
.article-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 4px;
    height: 22px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-blue-light));
    box-shadow: 0 0 10px rgba(46,124,246,0.5);
}
.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 1.8em 0 0.6em;
    color: var(--text-primary);
}
.article-content ul {
    margin: 1em 0 1.5em;
    padding-left: 1.4em;
    list-style: none;
}
.article-content ul li {
    margin-bottom: 0.6em;
    padding-left: 0.5em;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}
.article-content ul li::before {
    content: '';
    position: absolute;
    left: -1.1em;
    top: 0.7em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-blue);
    box-shadow: 0 0 8px rgba(46,124,246,0.5);
}
.article-content ol {
    margin: 1em 0 1.5em;
    padding-left: 1.6em;
    color: var(--text-secondary);
}
.article-content ol li {
    margin-bottom: 0.6em;
    line-height: 1.7;
}
.article-content blockquote {
    margin: 1.5em 0;
    padding: 1em 1.5em;
    border-left: 3px solid var(--accent-blue);
    background: rgba(46,124,246,0.08);
    border-radius: 0 12px 12px 0;
    color: var(--text-secondary);
    font-style: italic;
}
.article-content blockquote p:last-child {
    margin-bottom: 0;
}
.article-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 1.5em 0;
    box-shadow: var(--shadow-sm);
}
.article-content figure {
    margin: 1.5em 0;
}
.article-content figure img {
    margin: 0 0 8px;
}
.article-content figcaption {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    padding: 4px 0;
}
.article-content pre {
    background: var(--bg-deep);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: var(--radius-md);
    padding: 1.25em 1.5em;
    overflow-x: auto;
    margin: 1.5em 0;
}
.article-content code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.9em;
    background: rgba(255,255,255,0.10);
    padding: 3px 8px;
    border-radius: 6px;
    color: var(--accent-blue-light);
}
.article-content pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    color: var(--text-primary);
    font-size: 0.95em;
    line-height: 1.7;
}

/* 内容未找到 */
.article-not-found {
    text-align: center;
    padding: 100px 24px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.article-not-found i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.article-not-found h2 {
    font-size: 1.6rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}
.article-not-found p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* 上一篇/下一篇 */
.article-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 32px 0 48px;
    border-top: 1px solid rgba(255,255,255,0.06);
    margin-top: 8px;
}
.pager-link {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: all var(--transition);
}
.pager-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}
.pager-link.pager-next {
    text-align: right;
    align-items: flex-end;
}
.pager-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--accent-blue-light);
    font-weight: 600;
}
.pager-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============ 相关阅读 ============ */
.related-section {
    padding: 96px 0;
    background: var(--bg-secondary);
    position: relative;
}
.section-head {
    margin-bottom: 40px;
}
.section-bar {
    display: inline-block;
    width: 4px;
    height: 20px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-blue-light));
    box-shadow: 0 0 12px rgba(46,124,246,0.6);
    margin-bottom: 14px;
}
.section-head h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.section-head p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
}
.related-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg);
}
.related-thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
    transform: scale(1.05);
}
.related-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(8,13,26,0.6));
}
.related-info {
    padding: 20px 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.related-info h3 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}
.related-card:hover .related-info h3 {
    color: var(--accent-blue-light);
}
.related-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============ FAQ ============ */
.faq-section {
    padding: 96px 0;
    background: var(--bg-primary);
}
.faq-container {
    max-width: 860px;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    overflow: hidden;
    transition: all var(--transition);
}
.faq-item:hover {
    border-color: rgba(255,255,255,0.18);
}
.faq-item.active {
    border-color: rgba(46,124,246,0.4);
    box-shadow: 0 0 20px rgba(46,124,246,0.1);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: color var(--transition);
    min-height: 56px;
}
.faq-question i {
    font-size: 0.85rem;
    color: var(--accent-blue-light);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
.faq-item.active .faq-question i {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 24px;
}
.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}
.faq-answer p {
    color: var(--text-secondary);
    font-size: 0.925rem;
    line-height: 1.7;
}

/* ============ CTA 横幅 ============ */
.cta-banner {
    position: relative;
    padding: 96px 0;
    background: linear-gradient(135deg, rgba(46,124,246,0.15), rgba(214,40,57,0.08)),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    background-attachment: fixed;
    text-align: center;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(8,13,26,0.7);
}
.cta-inner {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 24px;
}
.cta-inner h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
    letter-spacing: -0.01em;
}
.cta-inner p {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

/* ============ 页脚 ============ */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 72px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 320px;
}
.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 28px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light));
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition);
}
.footer-col ul a:hover {
    color: var(--accent-blue-light);
    padding-left: 4px;
}
.footer-contact li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-contact i {
    color: var(--accent-blue);
    width: 16px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.825rem;
}
.footer-bottom-links {
    display: flex;
    gap: 20px;
}
.footer-bottom-links a {
    color: var(--text-muted);
    font-size: 0.825rem;
    transition: color var(--transition);
}
.footer-bottom-links a:hover {
    color: var(--text-secondary);
}

/* ============ 响应式 ============ */
@media (max-width: 1199px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1023px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .container {
        padding: 0 16px;
    }
    .article-container {
        padding: 0 16px;
    }
    .main-nav {
        display: none;
    }
    .nav-actions .btn {
        display: none;
    }
    .nav-toggle {
        display: inline-flex;
    }
    .mobile-menu {
        display: none;
    }
    .mobile-menu.open {
        display: flex;
    }
    .breadcrumb {
        padding-top: 32px;
    }
    .article-header h1 {
        font-size: 1.7rem;
    }
    .article-meta {
        gap: 12px;
        flex-direction: column;
        align-items: flex-start;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .related-section,
    .faq-section {
        padding: 56px 0;
    }
    .article-pager {
        grid-template-columns: 1fr;
    }
    .pager-link.pager-next {
        text-align: left;
        align-items: flex-start;
    }
    .cta-banner {
        padding: 56px 0;
        background-attachment: scroll;
    }
    .cta-inner .btn {
        width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-bottom: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .footer-bottom-links {
        gap: 16px;
    }
}

@media (max-width: 520px) {
    html {
        font-size: 15px;
    }
    .logo-text {
        font-size: 1.15rem;
    }
    .article-content p {
        font-size: 1rem;
    }
    .article-content h2 {
        font-size: 1.35rem;
    }
    .faq-question {
        padding: 16px 16px;
        font-size: 0.925rem;
    }
    .faq-answer {
        padding: 0 16px;
    }
    .faq-item.active .faq-answer {
        padding: 0 16px 16px;
    }
    .btn-lg {
        height: 48px;
        padding: 0 32px;
        font-size: 1rem;
    }
}

/* roulang page: category2 */
:root{
  --bg-primary:#080D1A;
  --bg-secondary:#0D1528;
  --bg-elevated:#111B30;
  --card-fill:rgba(255,255,255,0.05);
  --card-border:rgba(255,255,255,0.10);
  --card-border-hover:rgba(255,255,255,0.18);
  --accent-blue:#2E7CF6;
  --accent-blue-light:#57A0FF;
  --accent-red:#D62839;
  --accent-gold:#E8B054;
  --text-primary:#F0F4FA;
  --text-secondary:#9AA9BC;
  --text-muted:#5E6D82;
  --success:#2ED47A;
  --error:#F7685C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.35);
  --shadow-hover:0 12px 40px rgba(0,0,0,0.45);
  --transition:all 0.3s ease;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-family);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none;transition:var(--transition);}
img{max-width:100%;display:block;}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;color:inherit;}
ul,ol{list-style:none;}
.container{max-width:1280px;margin:0 auto;padding:0 24px;position:relative;}
.section-pad{padding:96px 0;}
@media(max-width:767px){.section-pad{padding:56px 0;}}
::selection{background:rgba(46,124,246,0.35);color:#fff;}
:focus-visible{outline:2px solid var(--accent-blue-light);outline-offset:3px;border-radius:4px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  background:rgba(10,15,30,0.55);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:var(--transition);
}
.site-header.scrolled{
  background:rgba(8,12,24,0.94);
  box-shadow:0 4px 20px rgba(0,0,0,0.4);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:20px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.25rem;letter-spacing:-0.01em;
  min-width:0;flex-shrink:0;
}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent-blue),var(--accent-blue-light));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1rem;
  box-shadow:0 0 14px rgba(46,124,246,0.45);
}
.logo-text{
  white-space:nowrap;
  background:linear-gradient(120deg,#fff,var(--accent-blue-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{
  padding:8px 18px;border-radius:24px;
  font-size:0.9375rem;font-weight:500;
  color:var(--text-secondary);
  position:relative;line-height:1.4;
}
.main-nav a:hover{color:var(--text-primary);background:rgba(255,255,255,0.06);}
.main-nav a.active{color:var(--accent-blue-light);font-weight:600;}
.main-nav a.active::after{
  content:'';position:absolute;left:20%;right:20%;bottom:2px;height:2px;
  background:var(--accent-blue);
  border-radius:2px;box-shadow:0 0 8px rgba(46,124,246,0.7);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 24px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent-blue),var(--accent-blue-light));
  color:#fff !important;font-weight:600;font-size:0.9375rem;
  box-shadow:0 0 20px rgba(46,124,246,0.35),0 4px 18px rgba(46,124,246,0.22);
  transition:var(--transition);
}
.nav-cta:hover{
  box-shadow:0 0 30px rgba(87,160,255,0.55),0 6px 24px rgba(46,124,246,0.3);
  transform:translateY(-1px) scale(1.02);
  color:#fff !important;
}
.nav-cta:active{transform:scale(0.98);box-shadow:0 0 12px rgba(46,124,246,0.3);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.06);
  color:#fff;font-size:1.1rem;cursor:pointer;
  align-items:center;justify-content:center;
  transition:var(--transition);
}
.menu-toggle:hover{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.25);}
.mobile-menu{
  display:none;
  position:fixed;top:72px;left:0;width:100%;z-index:999;
  background:rgba(8,12,24,0.97);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  padding:20px 24px 28px;
  flex-direction:column;gap:6px;
}
.mobile-menu.open{display:flex;}
.mobile-menu a{
  display:block;padding:14px 16px;border-radius:12px;
  color:var(--text-secondary);font-size:1rem;font-weight:500;
  transition:var(--transition);
}
.mobile-menu a:hover{color:#fff;background:rgba(255,255,255,0.07);}
.mobile-menu a.active{color:var(--accent-blue-light);background:rgba(46,124,246,0.12);font-weight:600;}
.mobile-menu .nav-cta{
  margin-top:10px;justify-content:center;
  padding:14px;font-size:1rem;
}
@media(max-width:1023px){
  .main-nav{display:none;}
  .nav-cta.desktop-cta{display:none;}
  .menu-toggle{display:flex;}
}
@media(min-width:1024px){
  .mobile-menu{display:none !important;}
}

/* ============ Hero 区 ============ */
.category-hero{
  position:relative;
  min-height:620px;
  padding:170px 0 90px;
  display:flex;align-items:center;
  background:linear-gradient(135deg,rgba(8,13,26,0.94) 0%,rgba(13,21,40,0.88) 55%,rgba(13,21,40,0.75) 100%),
    url('/assets/images/backpic/back-1.webp') center 30%/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,0.06);
  overflow:hidden;
}
.category-hero::after{
  content:'';position:absolute;top:-80px;right:-80px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(46,124,246,0.18) 0%,transparent 70%);
  pointer-events:none;
}
.category-hero .hero-inner{
  display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(46,124,246,0.15);
  border:1px solid rgba(87,160,255,0.3);
  color:var(--accent-blue-light);
  font-size:0.8125rem;font-weight:600;
  padding:6px 16px;border-radius:30px;
  margin-bottom:22px;
  letter-spacing:0.02em;
}
.hero-badge i{font-size:0.75rem;}
.hero-title{
  font-size:clamp(2.1rem,5vw,3.6rem);
  font-weight:800;line-height:1.18;letter-spacing:-0.02em;
  margin-bottom:18px;
}
.hero-title span{
  background:linear-gradient(120deg,var(--accent-gold),#f5c78c);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-subtitle{
  font-size:1.0625rem;color:var(--text-secondary);
  max-width:540px;margin-bottom:30px;line-height:1.8;
}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 32px;border-radius:12px;
  font-size:1rem;font-weight:600;
  cursor:pointer;min-height:48px;
  transition:var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent-blue),var(--accent-blue-light));
  color:#fff;
  box-shadow:0 0 20px rgba(46,124,246,0.4),0 4px 20px rgba(46,124,246,0.25);
}
.btn-primary:hover{
  box-shadow:0 0 32px rgba(87,160,255,0.6),0 6px 26px rgba(46,124,246,0.35);
  transform:translateY(-1px) scale(1.02);
}
.btn-primary:active{transform:scale(0.98);box-shadow:0 0 12px rgba(46,124,246,0.3);}
.btn-secondary{
  background:rgba(255,255,255,0.06);
  color:var(--text-primary);
  border:1px solid rgba(255,255,255,0.18);
}
.btn-secondary:hover{
  background:rgba(255,255,255,0.12);
  border-color:rgba(255,255,255,0.35);
  color:#fff;
}
.btn-secondary:active{transform:scale(0.98);}
.btn-block{width:100%;}
.hero-panel{
  background:var(--card-fill);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:30px;
  position:relative;
  overflow:hidden;
}
.hero-panel::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent-gold),var(--accent-red),var(--accent-blue));
}
.panel-title{
  font-size:1.1875rem;font-weight:700;
  display:flex;align-items:center;gap:10px;margin-bottom:6px;
}
.panel-title i{color:var(--accent-gold);font-size:1.1rem;}
.panel-desc{font-size:0.875rem;color:var(--text-secondary);margin-bottom:20px;}
.brief-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  margin-bottom:20px;
}
.brief-stat{
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-md);
  padding:16px;
  text-align:center;
  transition:var(--transition);
}
.brief-stat:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.18);}
.brief-stat strong{
  display:block;font-size:1.5rem;font-weight:800;color:var(--accent-gold);
  line-height:1.3;
}
.brief-stat span{font-size:0.8125rem;color:var(--text-secondary);}
.hero-panel-list{display:flex;flex-direction:column;gap:10px;}
.hero-panel-list li{
  display:flex;align-items:center;gap:10px;
  font-size:0.9375rem;color:var(--text-secondary);
  padding:10px 14px;
  background:rgba(255,255,255,0.03);
  border-radius:var(--radius-sm);
  border-left:3px solid rgba(46,124,246,0.6);
}
.hero-panel-list li i{color:var(--success);font-size:0.8125rem;}
@media(max-width:1023px){
  .category-hero{padding:140px 0 60px;min-height:auto;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-panel{max-width:480px;}
}
@media(max-width:767px){
  .category-hero{padding:120px 0 44px;}
  .hero-title{font-size:clamp(1.8rem,7vw,2.4rem);}
  .hero-subtitle{font-size:0.9375rem;}
  .hero-btns{flex-direction:column;width:100%;}
  .hero-btns .btn{width:100%;}
  .brief-stats{grid-template-columns:1fr;}
}

/* ============ 区块标题 ============ */
.section-head{margin-bottom:40px;display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;}
.section-head-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;flex-shrink:0;
}
.section-head-icon.blue{
  background:rgba(46,124,246,0.15);
  color:var(--accent-blue-light);
  box-shadow:0 0 16px rgba(46,124,246,0.18);
}
.section-head-icon.gold{
  background:rgba(232,176,84,0.15);
  color:var(--accent-gold);
  box-shadow:0 0 16px rgba(232,176,84,0.18);
}
.section-head-icon.red{
  background:rgba(214,40,57,0.15);
  color:var(--accent-red);
  box-shadow:0 0 16px rgba(214,40,57,0.18);
}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:700;line-height:1.2;
  letter-spacing:-0.01em;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:24px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent-blue),var(--accent-blue-light));
  box-shadow:0 0 10px rgba(46,124,246,0.5);
}
.section-head.gold h2::before{
  background:linear-gradient(180deg,var(--accent-gold),#f0c588);
  box-shadow:0 0 10px rgba(232,176,84,0.5);
}
.section-head p{
  color:var(--text-secondary);font-size:0.9375rem;
  width:100%;margin-top:8px;
}

/* ============ 权益亮点卡片 ============ */
.benefit-cards{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:20px;}
.benefit-card{
  background:var(--card-fill);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  position:relative;
  overflow:hidden;
  transition:var(--transition);
  min-height:220px;
}
.benefit-card:nth-child(1){grid-column:span 1;}
.benefit-card:nth-child(2){grid-column:span 1;margin-top:24px;}
.benefit-card:nth-child(3){grid-column:span 1;margin-top:-8px;}
.benefit-card:nth-child(4){grid-column:span 1;margin-top:16px;}
.benefit-card::after{
  content:'';position:absolute;top:-60px;right:-60px;width:140px;height:140px;
  background:radial-gradient(circle,rgba(46,124,246,0.14),transparent 70%);
  opacity:0;transition:opacity 0.4s;
}
.benefit-card:hover{
  box-shadow:var(--shadow-hover);
  border-color:var(--card-border-hover);
  transform:translateY(-4px);
}
.benefit-card:hover::after{opacity:1;}
.benefit-icon{
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;margin-bottom:20px;
  background:rgba(46,124,246,0.13);
  color:var(--accent-blue-light);
  border:1px solid rgba(46,124,246,0.2);
  box-shadow:0 0 20px rgba(46,124,246,0.12);
}
.benefit-card:nth-child(2) .benefit-icon{
  background:rgba(232,176,84,0.13);color:var(--accent-gold);
  border-color:rgba(232,176,84,0.25);
  box-shadow:0 0 20px rgba(232,176,84,0.12);
}
.benefit-card:nth-child(3) .benefit-icon{
  background:rgba(214,40,57,0.13);color:var(--accent-red);
  border-color:rgba(214,40,57,0.25);
  box-shadow:0 0 20px rgba(214,40,57,0.12);
}
.benefit-card:nth-child(4) .benefit-icon{
  background:rgba(46,212,122,0.13);color:var(--success);
  border-color:rgba(46,212,122,0.25);
  box-shadow:0 0 20px rgba(46,212,122,0.12);
}
.benefit-card h3{font-size:1.125rem;font-weight:700;margin-bottom:10px;}
.benefit-card p{font-size:0.875rem;color:var(--text-secondary);line-height:1.7;}
@media(max-width:1199px){
  .benefit-cards{grid-template-columns:1fr 1fr;gap:18px;}
  .benefit-card:nth-child(n){grid-column:span 1;margin-top:0;}
}
@media(max-width:767px){
  .benefit-cards{grid-template-columns:1fr;}
  .benefit-card{min-height:0;}
}

/* ============ 对比表 ============ */
.compare-section{background:var(--bg-secondary);border-top:1px solid rgba(255,255,255,0.05);border-bottom:1px solid rgba(255,255,255,0.05);}
.compare-wrap{
  background:var(--card-fill);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{
  padding:20px 24px;text-align:left;
  border-bottom:1px solid rgba(255,255,255,0.07);
  vertical-align:top;
}
.compare-table thead th{
  background:rgba(255,255,255,0.08);
  font-size:1.0625rem;font-weight:700;
  color:var(--text-primary);
  position:relative;
}
.compare-table thead th.vip-col{
  background:rgba(232,176,84,0.1);
  border-top:3px solid var(--accent-gold);
}
.recommend-badge{
  display:inline-block;
  background:var(--accent-red);
  color:#fff;font-size:0.75rem;font-weight:700;
  padding:2px 10px;border-radius:12px;
  margin-left:8px;
  letter-spacing:0.02em;
  vertical-align:middle;
  box-shadow:0 0 10px rgba(214,40,57,0.4);
}
.compare-table td{color:var(--text-secondary);font-size:0.9375rem;}
.compare-table td:first-child{color:var(--text-primary);font-weight:600;}
.compare-table td.vip-col{
  background:rgba(232,176,84,0.04);
  color:var(--text-primary);
}
.compare-table .icon-check{color:var(--success);font-size:1.1rem;}
.compare-table .icon-times{color:var(--text-muted);font-size:1.1rem;}
.compare-table tbody tr:hover td{background:rgba(255,255,255,0.03);}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-mobile{display:none;}
@media(max-width:767px){
  .compare-table{display:none;}
  .compare-mobile{display:flex;flex-direction:column;gap:0;}
  .compare-block{padding:24px;}
  .compare-block:not(:last-child){border-bottom:1px solid rgba(255,255,255,0.07);}
  .compare-block-heading{
    display:flex;align-items:center;justify-content:space-between;
    margin-bottom:16px;font-size:1.125rem;font-weight:700;
  }
  .compare-block.vip .compare-block-heading{
    color:var(--accent-gold);
  }
  .compare-block ul{display:flex;flex-direction:column;gap:10px;}
  .compare-block li{
    display:flex;align-items:center;gap:10px;
    color:var(--text-secondary);font-size:0.875rem;
  }
  .compare-block li.unavailable{color:var(--text-muted);text-decoration:line-through;}
}

/* ============ 应用场景 ============ */
.scenes-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.scene-card{
  background:var(--card-fill);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:var(--transition);
}
.scene-card:hover{
  box-shadow:var(--shadow-hover);
  border-color:var(--card-border-hover);
  transform:translateY(-3px);
}
.scene-image{position:relative;aspect-ratio:16/8.5;overflow:hidden;}
.scene-image img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease;}
.scene-card:hover .scene-image img{transform:scale(1.04);}
.scene-image::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:70px;
  background:linear-gradient(transparent,rgba(8,13,26,0.6));
}
.scene-content{padding:28px;}
.scene-tag{
  display:inline-block;
  background:rgba(46,124,246,0.15);
  color:var(--accent-blue-light);
  font-size:0.75rem;font-weight:600;
  padding:4px 12px;border-radius:14px;
  margin-bottom:14px;
}
.scene-content h3{font-size:1.25rem;font-weight:700;margin-bottom:12px;}
.scene-content p{font-size:0.9375rem;color:var(--text-secondary);line-height:1.8;margin-bottom:16px;}
.scene-points{display:flex;flex-direction:column;gap:8px;}
.scene-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:0.875rem;color:var(--text-secondary);
}
.scene-points li i{color:var(--success);margin-top:5px;font-size:0.75rem;}
@media(max-width:767px){
  .scenes-grid{grid-template-columns:1fr;}
}

/* ============ 激活流程 ============ */
.flow-section{background:linear-gradient(135deg,rgba(8,13,26,0.97),rgba(13,21,40,0.92)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;border-top:1px solid rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.04);}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
  background:var(--card-fill);
  border:1px solid var(--card-border);
  border-radius:var(--radius-lg);
  padding:30px 24px;
  text-align:center;
  position:relative;
  transition:var(--transition);
}
.flow-step:hover{
  border-color:rgba(232,176,84,0.35);
  background:rgba(232,176,84,0.05);
  transform:translateY(-3px);
}
.flow-step-number{
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent-gold),#c98a3d);
  color:#fff;font-size:1.375rem;font-weight:800;
  margin:0 auto 18px;
  box-shadow:0 0 18px rgba(232,176,84,0.35);
}
.flow-step h3{font-size:1.0625rem;font-weight:700;margin-bottom:10px;color:var(--text-primary);}
.flow-step p{font-size:0.875rem;color:var(--text-secondary);line-height:1.7;}
.flow-arrow{
  position:absolute;top:50%;right:-18px;
  color:var(--accent-gold);
  font-size:1rem;opacity:0.6;
  z-index:2;
}
.flow-step:last-child .flow-arrow{display:none;}
@media(max-width:1023px){
  .flow-grid{grid-template-columns:1fr 1fr;gap:18px;}
  .flow-arrow{display:none;}
}
@media(max-width:767px){
  .flow-grid{grid-template-columns:1fr;}
}

/* ============ FAQ ============ */
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card-fill);
  border:1px solid var(--card-border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(255,255,255,0.16);}
.faq-item.active{
  border-color:rgba(46,124,246,0.35);
  box-shadow:0 0 20px rgba(46,124,246,0.08);
}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  text-align:left;padding:20px 24px;
  font-size:1rem;font-weight:600;color:var(--text-primary);
  cursor:pointer;background:transparent;
  min-height:56px;
}
.faq-question .faq-icon{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.07);
  color:var(--text-secondary);
  font-size:0.875rem;
  flex-shrink:0;
  margin-left:16px;
  transition:var(--transition);
}
.faq-item.active .faq-icon{
  background:var(--accent-blue);
  color:#fff;
  transform:rotate(135deg);
  box-shadow:0 0 14px rgba(46,124,246,0.4);
}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height 0.4s ease;
  padding:0 24px;
}
.faq-item.active .faq-answer{
  max-height:400px;
  padding-bottom:20px;
}
.faq-answer p{
  color:var(--text-secondary);font-size:0.9375rem;
  line-height:1.8;
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:16px;
}
@media(max-width:767px){
  .faq-question{font-size:0.9375rem;padding:16px 18px;}
  .faq-answer{padding:0 18px;}
  .faq-item.active .faq-answer{padding-bottom:16px;}
}

/* ============ CTA横幅 ============ */
.cta-banner{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(100deg,var(--accent-red),#b81f2d 45%,#8a1420);
  padding:60px 48px;
  text-align:center;
  box-shadow:0 20px 60px rgba(214,40,57,0.2);
}
.cta-banner::before{
  content:'';position:absolute;top:0;left:0;right:0;bottom:0;
  background:
    linear-gradient(120deg,transparent 30%,rgba(232,176,84,0.18) 50%,transparent 70%);
  pointer-events:none;
  background-size:200% 100%;
  animation:ctaShine 5s ease-in-out infinite;
}
@keyframes ctaShine{
  0%,100%{background-position:0% 0;}
  50%{background-position:100% 0;}
}
.cta-banner h2{
  font-size:clamp(1.5rem,3.5vw,2.2rem);
  font-weight:800;color:#fff;
  margin-bottom:14px;position:relative;
}
.cta-banner p{
  color:rgba(255,255,255,0.85);font-size:1rem;
  max-width:620px;margin:0 auto 28px;position:relative;
}
.cta-banner .btn-white{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;color:#b81f2d;
  padding:14px 38px;border-radius:12px;
  font-weight:700;font-size:1rem;
  box-shadow:0 8px 30px rgba(0,0,0,0.15);
  transition:var(--transition);
  position:relative;
  min-height:48px;
}
.cta-banner .btn-white:hover{
  transform:translateY(-2px) scale(1.03);
  box-shadow:0 12px 36px rgba(0,0,0,0.2);
}
.cta-banner .btn-white:active{transform:scale(0.98);}
@media(max-width:767px){
  .cta-banner{padding:44px 22px;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:#0A0F1E;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:70px 0 0;
  margin-top:96px;
}
@media(max-width:767px){
  .site-footer{margin-top:56px;padding:48px 0 0;}
}
.footer-grid{
  display:grid;grid-template-columns:1.3fr 0.8fr 0.9fr 1fr;
  gap:40px;padding-bottom:48px;
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
}
.footer-brand .logo{
  font-size:1.15rem;margin-bottom:16px;
  display:inline-flex;
}
.footer-brand-desc{
  color:var(--text-secondary);font-size:0.9375rem;
  line-height:1.8;max-width:340px;
  margin-bottom:16px;
}
.footer-col h4{
  color:var(--text-primary);font-size:1rem;font-weight:700;
  margin-bottom:18px;position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;
  background:var(--accent-blue);border-radius:2px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a, .footer-col ul li{
  color:var(--text-secondary);font-size:0.9375rem;
  transition:var(--transition);
}
.footer-col ul li a:hover{color:var(--accent-blue-light);padding-left:4px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:0.875rem;}
.footer-contact i{color:var(--accent-blue-light);width:18px;text-align:center;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding:20px 0;
}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:12px;
}
.footer-bottom p{color:var(--text-muted);font-size:0.8125rem;}
.footer-bottom-links{display:flex;gap:20px;}
.footer-bottom-links a{
  color:var(--text-muted);font-size:0.8125rem;
  transition:var(--transition);
}
.footer-bottom-links a:hover{color:var(--text-secondary);}
@media(max-width:767px){
  .footer-bottom .container{flex-direction:column;text-align:center;}
}

/* ============ 通用 ============ */
.bg-tint{background:var(--bg-secondary);border-top:1px solid rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.04);}
@media(max-width:767px){
  .container{padding:0 16px;}
}