/* ==========================================================================
   TraZoom 官网 — Landing Page
   ========================================================================== */

:root {
    --color-primary: #0d9ea8;
    --color-primary-hover: #12b5bf;
    --color-primary-light: #e6f9fa;
    --color-primary-muted: rgba(13, 158, 168, 0.12);
    --color-success: #22a06b;
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748b;
    --color-bg: #ffffff;
    --color-bg-subtle: #f4f6f9;
    --color-bg-hero: #0a1628;
    --color-border: #e8edf3;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

    /* 字体尺度 — 中文排版层级 */
    --text-caption: 12px;     /* L5 表头 / 辅助 / 徽章 */
    --text-small: 13px;       /* L4 卡片正文 / 列表 / 表格 */
    --text-label: 15px;       /* L4.5 模块标签（平台优势 / 核心功能） */
    --text-lead: 14px;        /* L3.5 区块导语（次于大标题） */
    --text-body: 15px;        /* L3 段落 / 按钮 */
    --text-subtitle: 16px;    /* L2 卡片标题 / 小标题 */
    --text-group: 18px;       /* L1.5 分组标题 */
    --text-title: 30px;       /* L1 区块大标题 */
    --text-display: 40px;     /* L0 Hero 主标题 */
    --text-stat: 18px;        /* 数字强调 */

    /* 兼容别名 */
    --text-xs: var(--text-caption);
    --text-sm: var(--text-small);
    --text-base: var(--text-body);
    --text-md: var(--text-subtitle);
    --text-lg: var(--text-subtitle);
    --text-xl: var(--text-stat);
    --text-2xl: var(--text-title);
    --text-3xl: 30px;
    --text-4xl: var(--text-display);

    --leading-tight: 1.3;
    --leading-snug: 1.4;
    --leading-normal: 1.65;
    --leading-relaxed: 1.75;

    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
    --shadow-elevated: 0 20px 60px rgba(15, 23, 42, 0.12);
    --nav-height: 72px;
    --section-gap: 80px;
    --section-header-gap: 48px;
    --section-content-gap: 32px;
    --section-block-gap: 56px;
    --content-width: 1120px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 16px);
}

body.landing-page {
    margin: 0;
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.landing-skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 10002;
    padding: 10px 16px;
    font-size: var(--text-small);
    font-weight: 600;
    color: #fff;
    background: var(--color-primary);
    border-radius: 8px;
    text-decoration: none;
    transition: top 0.2s;
}

.landing-skip-link:focus {
    top: 16px;
}

.landing-page :focus {
    outline: none;
}

.landing-page :focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.landing-container {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}

.landing-nav:not(.is-scrolled) .landing-nav-links a {
    color: rgba(255, 255, 255, 0.78);
}

.landing-nav:not(.is-scrolled) .landing-nav-links a:hover {
    color: #fff;
}

.landing-nav:not(.is-scrolled) .landing-btn-ghost {
    color: rgba(255, 255, 255, 0.85);
}

.landing-nav:not(.is-scrolled) .landing-btn-ghost:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.landing-nav:not(.is-scrolled) .landing-nav-toggle {
    color: #fff;
}

.landing-nav.is-scrolled {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--color-border);
    box-shadow: 0 1px 12px rgba(15, 23, 42, 0.06);
}

.landing-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
}

.landing-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.landing-logo img {
    height: 34px;
    width: auto;
}

.landing-nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.landing-nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: color 0.2s;
}

.landing-nav-links a:hover,
.landing-nav-links a.is-active {
    color: var(--color-primary);
}

.landing-nav:not(.is-scrolled) .landing-nav-links a.is-active {
    color: #fff;
    font-weight: 600;
}

.landing-nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.landing-lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
}

.landing-nav.is-scrolled .landing-lang-switch {
    background: var(--color-bg-subtle);
    border-color: var(--color-border);
}

.landing-lang-switch a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 5px 10px;
    font-size: var(--text-caption);
    font-weight: 600;
    line-height: 1;
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
}

.landing-nav.is-scrolled .landing-lang-switch a {
    color: var(--color-text-secondary);
}

.landing-lang-switch a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.landing-nav.is-scrolled .landing-lang-switch a:hover {
    color: var(--color-primary);
    background: var(--color-primary-muted);
}

.landing-lang-switch a.is-active {
    color: #fff;
    background: rgba(13, 158, 168, 0.35);
}

.landing-nav.is-scrolled .landing-lang-switch a.is-active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.landing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: var(--leading-tight);
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.landing-btn-ghost {
    color: var(--color-text-secondary);
    background: transparent;
}

.landing-btn-ghost:hover {
    color: var(--color-primary);
    background: var(--color-primary-muted);
}

.landing-btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary) 0%, #0a858e 100%);
    box-shadow: 0 4px 14px rgba(13, 158, 168, 0.35);
}

.landing-btn-primary:hover {
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);
    box-shadow: 0 6px 20px rgba(13, 158, 168, 0.45);
    transform: translateY(-1px);
}

.landing-btn-outline {
    color: var(--color-primary);
    background: transparent;
    border: 1.5px solid var(--color-primary);
}

.landing-btn-outline:hover {
    color: #fff;
    background: var(--color-primary);
}

.landing-btn-ghost--hero {
    color: rgba(255, 255, 255, 0.82);
}

.landing-btn-ghost--hero:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.landing-btn-lg {
    padding: 12px 24px;
    font-size: var(--text-base);
    border-radius: 10px;
}

.landing-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--text-stat);
    color: var(--color-text);
    cursor: pointer;
    padding: 8px;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.landing-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--nav-height) + 48px) 0 var(--section-gap);
    background: var(--color-bg-hero);
    overflow: hidden;
    scroll-margin-top: 0;
}

.landing-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.landing-hero-bg::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 70%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(13, 158, 168, 0.18) 0%, transparent 70%);
}

.landing-hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 50%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(34, 160, 107, 0.1) 0%, transparent 70%);
}

.landing-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 100%);
}

.landing-hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
    align-items: center;
}

.landing-hero-text {
    color: #fff;
}

.landing-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    margin-bottom: 20px;
    font-size: var(--text-label);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(13, 158, 168, 0.2);
    border: 1px solid rgba(13, 158, 168, 0.35);
    border-radius: 100px;
}

.landing-hero-badge i {
    font-size: var(--text-small);
    color: var(--color-primary-hover);
}

.landing-hero-title {
    margin: 0 0 16px;
    font-size: clamp(30px, 4vw, var(--text-display));
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.landing-hero-title span {
    background: linear-gradient(135deg, #12b5bf 0%, #22a06b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-hero-desc {
    margin: 0 0 20px;
    font-size: var(--text-body);
    line-height: var(--leading-relaxed);
    color: rgba(255, 255, 255, 0.65);
    max-width: 480px;
}

.landing-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.landing-hero-actions .landing-btn-outline {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.28);
}

.landing-hero-actions .landing-btn-outline:hover {
    color: #fff;
    border-color: var(--color-primary);
    background: var(--color-primary);
}

.landing-hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.landing-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.landing-stat-value {
    font-size: var(--text-stat);
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.01em;
    line-height: var(--leading-tight);
}

.landing-stat-label {
    font-size: var(--text-caption);
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.01em;
}

/* --------------------------------------------------------------------------
   Unified icon system
   -------------------------------------------------------------------------- */

.landing-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: var(--text-subtitle);
    line-height: 1;
    flex-shrink: 0;
}

.landing-icon--sm {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    font-size: var(--text-small);
}

.landing-icon--lg {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    font-size: var(--text-stat);
}

.landing-icon--primary {
    color: var(--color-primary);
    background: var(--color-primary-muted);
}

.landing-icon--success {
    color: var(--color-success);
    background: rgba(34, 160, 107, 0.12);
}

.landing-icon--info {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.12);
}

.landing-icon--amber {
    color: #d97706;
    background: rgba(217, 119, 6, 0.12);
}

/* Hero visual */
.landing-hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.landing-hero-mockup {
    width: 100%;
    max-width: 420px;
}

.landing-preview-card {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 18px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-elevated);
}

.landing-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.landing-preview-dots {
    display: flex;
    gap: 5px;
}

.landing-preview-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
}

.landing-preview-dots span:first-child { background: #e5484d; }
.landing-preview-dots span:nth-child(2) { background: #e5a000; }
.landing-preview-dots span:nth-child(3) { background: #22a06b; }

.landing-preview-status {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: var(--text-caption);
    color: rgba(255, 255, 255, 0.55);
}

.landing-preview-status::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22a06b;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.landing-preview-rows {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.landing-preview-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
}

.landing-preview-row-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.landing-hero-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
    justify-content: center;
}

.landing-hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.78);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 100px;
}

.landing-hero-chip i {
    font-size: var(--text-caption);
    color: var(--color-primary-hover);
}

.landing-preview-symbol {
    font-size: var(--text-small);
    font-weight: 600;
    color: #fff;
    line-height: var(--leading-tight);
}

.landing-preview-type {
    font-size: var(--text-caption);
    color: rgba(255, 255, 255, 0.42);
    margin-top: 1px;
}

.landing-preview-row-right {
    text-align: right;
}

.landing-preview-price {
    font-size: var(--text-small);
    font-weight: 600;
    color: #fff;
    line-height: var(--leading-tight);
}

.landing-preview-change {
    font-size: var(--text-caption);
    font-weight: 500;
    margin-top: 1px;
}

.landing-preview-change.up { color: #22a06b; }
.landing-preview-change.sync { color: var(--color-primary-hover); }

/* --------------------------------------------------------------------------
   Sections — shared typography
   -------------------------------------------------------------------------- */

.landing-section {
    padding: var(--section-gap) 0;
    scroll-margin-top: calc(var(--nav-height) + 16px);
}

.landing-section-alt {
    background: var(--color-bg-subtle);
}

.landing-section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--section-header-gap);
}

.landing-section-header--left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    max-width: 480px;
}

.landing-section-label {
    display: inline-block;
    margin-bottom: 14px;
    font-size: var(--text-label);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-primary);
}

.landing-section-title {
    margin: 0 0 14px;
    font-size: clamp(26px, 3.2vw, var(--text-title));
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.35;
    color: var(--color-text);
}

.landing-section-title--left {
    text-align: left;
}

.landing-section-desc {
    margin: 0 auto;
    font-size: var(--text-lead);
    font-weight: 400;
    color: var(--color-text-tertiary);
    line-height: 1.7;
    max-width: 480px;
}

.landing-section-desc--left {
    text-align: left;
    margin: 0;
    max-width: 480px;
}

/* Platform bar — 模块间过渡带 */
.landing-exchanges {
    padding: 0;
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    scroll-margin-top: calc(var(--nav-height) + 16px);
}

.landing-exchanges-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    padding: var(--section-content-gap) 0;
}

.landing-exchanges-label {
    font-size: var(--text-label);
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.landing-platform-chips {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.landing-platform-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 10px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
}

/* Showcase */
.landing-browser-frame {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    background: var(--color-bg);
}

.landing-browser-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
}

.landing-browser-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cbd5e1;
}

.landing-browser-dot:nth-child(1) { background: #e5484d; }
.landing-browser-dot:nth-child(2) { background: #e5a000; }
.landing-browser-dot:nth-child(3) { background: #22a06b; }

.landing-browser-url {
    margin-left: 8px;
    padding: 4px 12px;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.landing-showcase-frame {
    overflow: hidden;
    background: var(--color-bg-subtle);
}

.landing-showcase-frame img {
    display: block;
    width: 100%;
    height: auto;
}

/* Features */
.landing-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.landing-feature-card {
    padding: 24px 22px 26px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.landing-feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
    border-color: rgba(13, 158, 168, 0.22);
}

.landing-feature-card .landing-icon {
    margin-bottom: 16px;
}

.landing-feature-title {
    margin: 0 0 6px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-feature-desc {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Workflow */
.landing-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.landing-steps::before {
    content: '';
    position: absolute;
    top: 22px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary), var(--color-primary-light));
    z-index: 0;
}

.landing-step {
    position: relative;
    z-index: 1;
    text-align: center;
}

.landing-step-num {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: var(--text-subtitle);
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary) 0%, #0a858e 100%);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(13, 158, 168, 0.28);
}

.landing-step-title {
    margin: 0 0 4px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-step-desc {
    margin: 0;
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

/* Security */
.landing-security-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--section-header-gap);
    align-items: center;
}

.landing-security-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.landing-security-text .landing-section-header--left {
    margin-bottom: var(--section-content-gap);
}

.landing-faq-intro .landing-section-header--left {
    margin-bottom: 20px;
}

.landing-security-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.landing-security-item strong {
    display: block;
    margin-bottom: 2px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-security-item span {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

.landing-security-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-security-panel {
    width: 100%;
    max-width: 360px;
    padding: 40px 32px;
    text-align: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.landing-security-panel .landing-icon {
    margin: 0 auto 20px;
}

.landing-security-panel-title {
    margin: 0 0 6px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    color: var(--color-text);
}

.landing-security-panel-desc {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* CTA */
.landing-cta {
    padding: var(--section-gap) 0;
    background: var(--color-bg);
    scroll-margin-top: calc(var(--nav-height) + 16px);
}

.landing-cta-box {
    position: relative;
    padding: 56px 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-hero) 0%, #0f2847 100%);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.landing-cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(ellipse at top right, rgba(13, 158, 168, 0.2) 0%, transparent 70%);
}

.landing-cta-box::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 50%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(13, 158, 168, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.landing-cta-content {
    position: relative;
    z-index: 1;
}

.landing-cta-title {
    margin: 0 0 10px;
    font-size: clamp(26px, 3.2vw, var(--text-title));
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.landing-cta-desc {
    margin: 0 0 24px;
    font-size: var(--text-lead);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.58);
    line-height: 1.7;
}

.landing-cta-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.landing-cta-actions .landing-btn-outline {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.28);
}

.landing-cta-actions .landing-btn-outline:hover {
    color: #fff;
    border-color: var(--color-primary);
    background: var(--color-primary);
}

/* Footer */
.landing-footer {
    padding: 48px 0 28px;
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border);
}

.landing-footer-main {
    display: grid;
    grid-template-columns: minmax(0, 300px) 1fr;
    gap: 32px 48px;
    align-items: start;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
}

.landing-footer-brand img {
    height: 30px;
    margin-bottom: 12px;
}

.landing-footer-brand p {
    margin: 0;
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    line-height: var(--leading-relaxed);
}

.landing-footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 28px 56px;
    justify-content: flex-end;
    align-items: flex-start;
}

.landing-footer-nav-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}

.landing-footer-nav-label {
    font-size: var(--text-small);
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.landing-footer-link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.landing-footer-link-row a {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s;
}

.landing-footer-link-row a:hover {
    color: var(--color-primary);
}

.landing-footer-disclaimer {
    margin: 20px 0 0;
    padding: 0;
    font-size: var(--text-caption);
    line-height: 1.65;
    color: var(--color-text-tertiary);
    background: none;
    border: none;
    border-radius: 0;
}

.landing-footer-bottom {
    margin-top: 20px;
    padding-top: 0;
    border-top: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.landing-footer-copyright {
    margin: 0;
    font-size: var(--text-caption);
    color: var(--color-text-tertiary);
}

.landing-footer-social {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color 0.2s;
}

.landing-footer-social:hover {
    color: var(--color-primary);
}

/* Mobile nav */
.landing-mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1001;
    background: rgba(15, 23, 42, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.landing-mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
}

.landing-mobile-drawer {
    position: absolute;
    top: 0;
    right: 0;
    width: min(300px, 85vw);
    height: 100%;
    background: #fff;
    padding: 20px;
    transform: translateX(100%);
    transition: transform 0.3s;
    overflow-y: auto;
}

.landing-mobile-menu.is-open .landing-mobile-drawer {
    transform: translateX(0);
}

.landing-mobile-close {
    display: block;
    margin-left: auto;
    margin-bottom: 20px;
    background: none;
    border: none;
    font-size: var(--text-stat);
    color: var(--color-text);
    cursor: pointer;
}

.landing-lang-switch--mobile {
    margin-bottom: 16px;
    background: var(--color-bg-subtle);
    border-color: var(--color-border);
}

.landing-lang-switch--mobile a {
    color: var(--color-text-secondary);
}

.landing-lang-switch--mobile a.is-active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.landing-mobile-links {
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
}

.landing-mobile-links li {
    border-bottom: 1px solid var(--color-border);
}

.landing-mobile-links a {
    display: block;
    padding: 12px 0;
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
}

.landing-mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.landing-mobile-actions .landing-btn {
    width: 100%;
}

/* Hero points */
.landing-hero-points {
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.landing-hero-points li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.72);
    line-height: var(--leading-relaxed);
}

.landing-hero-points i {
    flex-shrink: 0;
    margin-top: 3px;
    font-size: var(--text-caption);
    color: var(--color-primary-hover);
}

/* Advantages */
.landing-advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 880px;
    margin: 0 auto;
}

.landing-advantage-card {
    padding: 24px 22px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: transform 0.2s, box-shadow 0.2s;
}

.landing-advantage-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.landing-advantage-card .landing-icon {
    margin-bottom: 14px;
}

.landing-advantage-title {
    margin: 0 0 6px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-advantage-desc {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Showcase highlights */
.landing-showcase-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: var(--section-content-gap);
}

.landing-highlight-card {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.landing-highlight-title {
    margin: 0 0 4px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-highlight-desc {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Scenarios */
.landing-scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.landing-scenario-card {
    position: relative;
    padding: 28px 24px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.landing-scenario-card--featured {
    border-color: rgba(13, 158, 168, 0.35);
    box-shadow: 0 8px 32px rgba(13, 158, 168, 0.1);
}

.landing-scenario-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    font-size: var(--text-small);
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-light);
    border-radius: 100px;
}

.landing-scenario-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.landing-scenario-title {
    margin: 0;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-scenario-desc {
    margin: 0 0 14px;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

.landing-scenario-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
}

.landing-scenario-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.landing-scenario-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
}

.landing-scenario-list li:last-child {
    margin-bottom: 0;
}

/* Feature groups */
.landing-feature-group-title {
    margin: 0 0 18px;
    font-size: var(--text-group);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
    padding-left: 12px;
    border-left: 3px solid var(--color-primary);
}

.landing-feature-group-title:not(:first-of-type) {
    margin-top: var(--section-block-gap);
}

/* Step details */
.landing-step-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: var(--section-block-gap);
}

.landing-step-detail {
    padding: 20px 22px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.landing-step-detail h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 8px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-step-detail p {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Technology pipeline */
.landing-pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: var(--section-block-gap);
    padding: 32px 24px;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.landing-pipeline-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    min-width: 120px;
}

.landing-pipeline-node strong {
    font-size: var(--text-small);
    font-weight: 600;
    color: var(--color-text);
}

.landing-pipeline-node span {
    font-size: var(--text-caption);
    color: var(--color-text-tertiary);
}

.landing-pipeline-arrow {
    color: var(--color-text-quaternary, #94a3b8);
    font-size: var(--text-small);
}

.landing-tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.landing-tech-item {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.landing-tech-item strong {
    display: block;
    margin-bottom: 3px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
}

.landing-tech-item p {
    margin: 0;
    font-size: var(--text-small);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Compare table */
.landing-compare-wrap {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-bg);
}

.landing-compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-small);
}

.landing-compare-table th,
.landing-compare-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.landing-compare-table thead th {
    font-size: var(--text-caption);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-tertiary);
    background: var(--color-bg-subtle);
}

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

.landing-compare-table tbody td:first-child {
    font-weight: 600;
    color: var(--color-text);
}

.landing-compare-table tbody td:not(:first-child) {
    color: var(--color-text-tertiary);
}

.landing-compare-highlight {
    color: var(--color-primary) !important;
    font-weight: 500;
    background: rgba(13, 158, 168, 0.04);
}

.landing-compare-table thead .landing-compare-highlight {
    color: var(--color-primary) !important;
    background: var(--color-primary-light);
}

/* FAQ */
.landing-faq-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--section-header-gap);
    align-items: start;
}

.landing-faq-intro .landing-btn {
    margin-top: 20px;
}

.landing-faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.landing-faq-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.landing-faq-item summary {
    padding: 16px 20px;
    font-size: var(--text-subtitle);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.landing-faq-item summary::-webkit-details-marker {
    display: none;
}

.landing-faq-item summary::after {
    content: '+';
    font-size: var(--text-stat);
    font-weight: 400;
    color: var(--color-primary);
    transition: transform 0.2s;
}

.landing-faq-item[open] summary::after {
    content: '−';
}

.landing-faq-item p {
    margin: 0;
    padding: 0 20px 16px;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-tertiary);
}

/* Responsive */
@media (max-width: 1024px) {
    :root {
        --section-gap: 64px;
        --section-header-gap: 40px;
        --section-block-gap: 48px;
    }

    .landing-nav-links {
        gap: 20px;
    }

    .landing-nav-links a {
        font-size: var(--text-small);
    }

    .landing-hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .landing-hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .landing-hero-actions,
    .landing-hero-stats,
    .landing-hero-points {
        justify-content: center;
    }

    .landing-hero-points {
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

    .landing-hero-visual {
        max-width: 420px;
        margin: 0 auto;
    }

    .landing-features-grid,
    .landing-showcase-highlights,
    .landing-scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .landing-advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: none;
    }

    .landing-step-details,
    .landing-tech-grid {
        grid-template-columns: 1fr;
    }

    .landing-faq-layout {
        grid-template-columns: 1fr;
        gap: var(--section-content-gap);
    }

    .landing-pipeline {
        flex-direction: column;
    }

    .landing-pipeline-arrow {
        transform: rotate(90deg);
    }

    .landing-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .landing-steps::before {
        display: none;
    }

    .landing-security-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .landing-security-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --section-gap: 48px;
        --section-header-gap: 32px;
        --section-content-gap: 24px;
        --section-block-gap: 40px;
    }

    .landing-nav-links,
    .landing-nav-actions .landing-btn {
        display: none;
    }

    .landing-nav-actions .landing-lang-switch {
        display: inline-flex;
    }

    .landing-nav-toggle {
        display: block;
    }

    .landing-mobile-menu {
        display: block;
    }

    .landing-features-grid,
    .landing-advantages-grid,
    .landing-showcase-highlights,
    .landing-scenarios-grid,
    .landing-steps {
        grid-template-columns: 1fr;
    }

    .landing-hero-points {
        text-align: left;
    }

    .landing-compare-table th,
    .landing-compare-table td {
        padding: 12px 14px;
        font-size: var(--text-caption);
    }

    .landing-hero-mockup {
        max-width: none;
    }

    .landing-footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-bottom: 24px;
    }

    .landing-footer-nav {
        justify-content: flex-start;
        gap: 24px 40px;
    }

    .landing-cta-box {
        padding: 40px 20px;
    }

    .landing-exchanges-inner {
        gap: 20px;
    }
}