/* ============================================
   Pages Specific Styles
   ============================================ */

/* ============================================
   HERO - 首页叙事区（带节点地图）
   ============================================ */
.hero {
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

/* Hero 背景光带 */
.hero::before {
    content: "";
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    filter: blur(80px);
    opacity: 0.4;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
}

.hero-content {
    position: relative;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 24px;
    padding: 8px 14px;
    background: var(--accent-glow-soft);
    border: 1px solid var(--border-accent);
    border-left-width: 2px;
}

.hero-eyebrow::before {
    content: "●";
    color: var(--accent);
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-title .accent {
    color: var(--accent);
    position: relative;
    display: inline-block;
}

.hero-title .accent::after {
    content: "";
    position: absolute;
    bottom: 6px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent);
    opacity: 0.3;
}

.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-meta {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-meta-item strong {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.hero-meta-item span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* 节点地图 */
.hero-visual {
    position: relative;
    aspect-ratio: 1 / 1;
    max-width: 560px;
    margin-left: auto;
}

.map-frame {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    overflow: hidden;
}

.map-frame::before,
.map-frame::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent);
    z-index: 2;
}

.map-frame::before {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

.map-frame::after {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}

.map-svg {
    width: 100%;
    height: 100%;
}

.map-corner-label {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    z-index: 3;
}

.map-corner-label.tl { top: 12px; left: 28px; }
.map-corner-label.tr { top: 12px; right: 28px; color: var(--success); }
.map-corner-label.bl { bottom: 12px; left: 28px; }
.map-corner-label.br { bottom: 12px; right: 28px; }

/* ============================================
   SOCIAL PROOF - 社会证明
   ============================================ */
.social-proof {
    padding: 48px 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.social-proof-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 32px;
}

.social-proof-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.social-proof-logos {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.social-proof-logos .logo-item {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.6;
    transition: opacity 0.3s;
    letter-spacing: 0.05em;
}

.social-proof-logos .logo-item:hover {
    opacity: 1;
    color: var(--text-primary);
}

/* ============================================
   CORE CAPABILITIES - 核心能力三栏
   ============================================ */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}

.capability {
    background: var(--bg-primary);
    padding: 48px 32px;
    position: relative;
    transition: background 0.3s var(--ease);
}

.capability:hover {
    background: var(--bg-secondary);
}

.capability::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.5s var(--ease);
}

.capability:hover::before {
    width: 100%;
}

.capability-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 16px;
    letter-spacing: 0.1em;
}

.capability-icon {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    color: var(--accent);
    border: 1px solid var(--border-accent);
    background: var(--accent-glow-soft);
}

.capability h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.capability p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.capability-stats {
    display: flex;
    gap: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.capability-stats div {
    display: flex;
    flex-direction: column;
}

.capability-stats strong {
    font-family: var(--font-display);
    font-size: 22px;
    color: var(--accent);
    font-weight: 700;
}

.capability-stats span {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 2px;
}

/* ============================================
   ⭐ 9 大问题分步解答模块 (核心)
   ============================================ */
.qa-section {
    padding: 100px 0;
    background: var(--bg-primary);
    position: relative;
}

.qa-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.qa-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 64px;
}

.qa-head .section-sub {
    margin: 16px auto 0;
}

.qa-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    align-items: start;
}

.qa-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    border: 1px solid var(--border);
    background: var(--bg-card);
    padding: 24px;
}

.qa-toc h4 {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.qa-toc ol {
    counter-reset: toc;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.qa-toc li {
    counter-increment: toc;
}

.qa-toc a {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    transition: all 0.2s var(--ease);
    border-left: 2px solid transparent;
}

.qa-toc a::before {
    content: counter(toc, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-top: 2px;
}

.qa-toc a:hover {
    color: var(--accent);
    background: var(--accent-glow-soft);
    border-left-color: var(--accent);
}

.qa-toc a.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--accent-glow-soft);
}

/* QA Items */
.qa-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.qa-item {
    border: 1px solid var(--border);
    background: var(--bg-card);
    overflow: hidden;
    scroll-margin-top: calc(var(--header-h) + 24px);
    transition: border-color 0.3s var(--ease);
}

.qa-item:hover {
    border-color: var(--border-accent);
}

.qa-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 28px;
    cursor: pointer;
    user-select: none;
    background: var(--bg-card);
    transition: background 0.2s var(--ease);
}

.qa-question:hover {
    background: rgba(0, 229, 255, 0.04);
}

.qa-question-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
    min-width: 0;
}

.qa-question-num {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--accent);
    background: var(--accent-glow-soft);
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-accent);
    flex-shrink: 0;
    font-weight: 700;
}

.qa-question-text {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    min-width: 0;
}

.qa-question-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 4px 8px;
    border: 1px solid var(--border);
    white-space: nowrap;
}

.qa-toggle {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-strong);
    color: var(--accent);
    flex-shrink: 0;
    transition: all 0.3s var(--ease);
}

.qa-toggle::before {
    content: "+";
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    transition: transform 0.3s var(--ease);
}

.qa-item.open .qa-toggle {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

.qa-item.open .qa-toggle::before {
    transform: rotate(45deg);
}

.qa-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease);
    border-top: 1px solid transparent;
}

.qa-item.open .qa-answer {
    max-height: 4000px;
    border-top-color: var(--border);
}

.qa-answer-inner {
    padding: 32px 28px;
}

.qa-intro {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--accent-glow-soft);
    border-left: 2px solid var(--accent);
    font-size: 14px;
}

.qa-intro strong {
    color: var(--accent);
}

/* Step blocks */
.steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 16px;
}

.step {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    position: relative;
    transition: all 0.2s var(--ease);
}

.step:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.step-num {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    position: relative;
}

.step-num::after {
    content: attr(data-cn);
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    white-space: nowrap;
}

.step-body {
    padding-bottom: 8px;
}

.step-body h4 {
    font-family: var(--font-display);
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.step-body h4 .step-label {
    color: var(--accent);
    font-family: var(--font-mono);
    margin-right: 8px;
    font-weight: 700;
}

.step-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
}

.step-tip {
    margin-top: 12px;
    padding: 10px 14px;
    background: rgba(0, 230, 118, 0.06);
    border-left: 2px solid var(--success);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-tip strong {
    color: var(--success);
    font-family: var(--font-mono);
    margin-right: 6px;
}

.step-code {
    margin-top: 12px;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    overflow-x: auto;
    line-height: 1.6;
}

.step-code::before {
    content: "$ ";
    color: var(--text-muted);
}

.qa-conclusion {
    margin-top: 24px;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.qa-conclusion-icon {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    font-family: var(--font-display);
}

.qa-conclusion-body {
    flex: 1;
}

.qa-conclusion-body strong {
    display: block;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.qa-conclusion-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
}

/* ============================================
   PLATFORM MATRIX - 平台覆盖矩阵
   ============================================ */
.platform-matrix {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.platform-card {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.platform-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.platform-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.platform-card:hover::before {
    transform: scaleX(1);
}

.platform-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-accent);
    color: var(--accent);
    background: var(--accent-glow-soft);
}

.platform-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.platform-card .platform-version {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.platform-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-bottom: 20px;
}

.platform-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    padding: 3px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

/* ============================================
   PRICING TABLE - 套餐对比
   ============================================ */
.pricing-section {
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    align-items: stretch;
}

.pricing-card {
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.3s var(--ease);
}

.pricing-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--accent);
    background: linear-gradient(180deg, rgba(0, 229, 255, 0.04) 0%, var(--bg-card) 100%);
}

.pricing-card.featured::before {
    content: "RECOMMENDED";
    position: absolute;
    top: -1px;
    left: -1px;
    background: var(--accent);
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.2em;
    padding: 6px 12px;
}

.pricing-card .plan-name {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 8px;
}

.pricing-card .plan-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-card .plan-desc {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 24px;
    min-height: 40px;
}

.pricing-card .plan-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 8px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.pricing-card .plan-price .currency {
    font-family: var(--font-display);
    font-size: 24px;
    color: var(--accent);
    font-weight: 600;
}

.pricing-card .plan-price .amount {
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    letter-spacing: -0.03em;
}

.pricing-card .plan-price .period {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-card .plan-original {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 16px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    flex: 1;
}

.pricing-features li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border-bottom: 1px dashed var(--border);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-features li::before {
    content: "✓";
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 700;
    flex-shrink: 0;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.6;
}

.pricing-features li.disabled::before {
    content: "×";
    color: var(--text-muted);
}

/* ============================================
   USER STORIES - 用户故事
   ============================================ */
.stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.story-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    position: relative;
    transition: all 0.3s var(--ease);
}

.story-card:hover {
    border-color: var(--border-accent);
}

.story-quote {
    font-size: 28px;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
    font-family: var(--font-display);
}

.story-card blockquote {
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: normal;
}

.story-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.story-avatar {
    width: 44px;
    height: 44px;
    background: var(--accent);
    color: var(--bg-primary);
    display: grid;
    place-items: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.story-info strong {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

.story-info span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.story-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    padding: 4px 8px;
    border: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   TECH TRANSPARENCY - 技术原理透明化
   ============================================ */
.tech-section {
    background: var(--bg-secondary);
}

.tech-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 24px;
}

.tech-step {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    text-align: center;
}

.tech-step-num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.2em;
    margin-bottom: 16px;
}

.tech-step-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: grid;
    place-items: center;
    background: var(--accent-glow-soft);
    color: var(--accent);
    border: 1px solid var(--border-accent);
}

.tech-step h3 {
    font-size: 17px;
    margin-bottom: 8px;
}

.tech-step p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

.tech-arrow {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
}

/* ============================================
   DOWNLOAD GUIDE - 下载引导
   ============================================ */
.download-guide {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.download-auto {
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    padding: 48px;
    text-align: center;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
}

.download-auto::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, var(--accent-glow-soft) 0%, transparent 50%);
    animation: shimmer 8s linear infinite;
    pointer-events: none;
}

.download-auto-content {
    position: relative;
}

.download-auto-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
}

.download-auto-platform {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-auto-platform .detected {
    color: var(--accent);
}

.download-auto-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

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

.mirror-list {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

.mirror-list a {
    color: var(--text-secondary);
    padding: 4px 8px;
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}

.mirror-list a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ============================================
   PAGE HERO (子页面头部)
   ============================================ */
.page-hero {
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, var(--accent-glow-soft) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, var(--accent-glow-soft) 0%, transparent 50%);
    pointer-events: none;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
}

.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--text-muted); }

.page-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 60px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    position: relative;
}

.page-hero h1 .accent { color: var(--accent); }

.page-hero .page-desc {
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.7;
    max-width: 700px;
    position: relative;
}

/* ============================================
   FAQ
   ============================================ */
.faq-search {
    margin-bottom: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 4px;
    display: flex;
    align-items: center;
}

.faq-search input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 15px;
    outline: none;
}

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

.faq-search button {
    padding: 12px 24px;
    background: var(--accent);
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: border-color 0.2s var(--ease);
}

.faq-item:hover { border-color: var(--border-accent); }
.faq-item.open { border-color: var(--accent); }

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.faq-question-text {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.faq-toggle {
    width: 24px;
    height: 24px;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    display: grid;
    place-items: center;
    transition: transform 0.3s var(--ease);
    flex-shrink: 0;
}

.faq-item.open .faq-toggle { transform: rotate(45deg); }

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

.faq-item.open .faq-answer { max-height: 1000px; }

.faq-answer-inner {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 14px;
    border-top: 1px solid var(--border);
    padding-top: 20px;
    margin-top: -1px;
}

/* ============================================
   AGENT FLOW - 4 步加入流程
   ============================================ */
.flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    position: relative;
}

.flow-steps::before {
    content: "";
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 50%, transparent 50%, transparent 100%);
    background-size: 12px 1px;
    z-index: 0;
}

.flow-step {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    text-align: center;
    position: relative;
    z-index: 1;
}

.flow-step-num {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    background: var(--accent);
    color: var(--bg-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    display: grid;
    place-items: center;
}

.flow-step h3 {
    font-size: 17px;
    margin-bottom: 8px;
}

.flow-step p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}

/* ============================================
   AGENT COMMISSION - 佣金方案
   ============================================ */
.commission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.commission-tier {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: all 0.3s var(--ease);
}

.commission-tier:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.commission-tier.featured {
    border-color: var(--accent);
}

.commission-tier h4 {
    font-family: var(--font-display);
    font-size: 20px;
    margin-bottom: 8px;
}

.commission-tier .commission-rate {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
}

.commission-tier .commission-rate .unit {
    font-size: 18px;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 4px;
}

.commission-tier ul {
    list-style: none;
    margin-top: 20px;
}

.commission-tier ul li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.commission-tier ul li::before {
    content: "→";
    color: var(--accent);
    font-family: var(--font-mono);
}

/* ============================================
   ARTICLES - 资讯列表
   ============================================ */
.featured-article {
    margin-bottom: 48px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
    align-items: center;
}

.featured-article-content .article-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.featured-article-content .article-meta .cat {
    color: var(--accent);
}

.featured-article-content h2 {
    font-family: var(--font-display);
    font-size: 28px;
    line-height: 1.3;
    margin-bottom: 12px;
}

.featured-article-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.featured-article-visual {
    aspect-ratio: 16/9;
    background: var(--bg-secondary);
    border: 1px solid var(--border-accent);
    position: relative;
    overflow: hidden;
    display: grid;
    place-items: center;
}

.featured-article-visual svg {
    width: 80%;
    height: 80%;
    color: var(--accent);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.3s var(--ease);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.article-thumb {
    aspect-ratio: 16/9;
    background: var(--bg-secondary);
    display: grid;
    place-items: center;
    border-bottom: 1px solid var(--border);
    color: var(--accent);
}

.article-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.article-card-meta .cat { color: var(--accent); }

.article-card h3 {
    font-family: var(--font-display);
    font-size: 17px;
    line-height: 1.4;
    margin-bottom: 12px;
    flex: 1;
}

.article-card p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.article-card-link {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.article-card-link::after {
    content: "→";
    transition: transform 0.2s var(--ease);
}

.article-card-link:hover::after {
    transform: translateX(4px);
}

/* ============================================
   POLICY CONTENT - 隐私政策正文
   ============================================ */
.policy-content {
    max-width: 880px;
    margin: 0 auto;
}

.policy-content h2 {
    font-family: var(--font-display);
    font-size: 24px;
    margin: 48px 0 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-primary);
}

.policy-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.policy-content h2::before {
    content: "§";
    color: var(--accent);
    margin-right: 12px;
    font-family: var(--font-mono);
}

.policy-content p,
.policy-content li {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.85;
    margin-bottom: 12px;
}

.policy-content ul {
    list-style: none;
    margin: 16px 0;
    padding-left: 0;
}

.policy-content ul li {
    padding-left: 24px;
    position: relative;
}

.policy-content ul li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.policy-content strong {
    color: var(--text-primary);
}

.policy-meta {
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    margin-bottom: 32px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .hero-visual { max-width: 480px; margin: 0 auto; }

    .capabilities-grid { grid-template-columns: 1fr; }
    .qa-grid { grid-template-columns: 1fr; }
    .qa-toc { position: static; }
    .qa-toc ol {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 4px;
    }

    .platform-matrix { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; }
    .stories-grid { grid-template-columns: 1fr; }
    .tech-flow { grid-template-columns: 1fr; }
    .tech-arrow { transform: rotate(90deg); justify-self: center; }
    .flow-steps { grid-template-columns: repeat(2, 1fr); }
    .flow-steps::before { display: none; }
    .commission-grid { grid-template-columns: 1fr; }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .featured-article { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero { padding: 48px 0 64px; }
    .section { padding: 56px 0; }

    .hero-meta { gap: 20px; }
    .hero-meta-item strong { font-size: 22px; }

    .capability { padding: 32px 24px; }
    .qa-toc ol { grid-template-columns: 1fr; }
    .qa-question { padding: 16px 20px; gap: 12px; }
    .qa-question-meta { gap: 12px; }
    .qa-question-text { font-size: 15px; }
    .qa-question-num { width: 28px; height: 28px; font-size: 12px; }
    .qa-answer-inner { padding: 24px 20px; }

    .step { grid-template-columns: 1fr; gap: 12px; }
    .step-num::after { display: none; }

    .platform-matrix { grid-template-columns: 1fr; }
    .pricing-card { padding: 32px 24px; }
    .pricing-card .plan-price .amount { font-size: 44px; }

    .download-auto { padding: 32px 20px; }
    .download-auto-platform { font-size: 24px; }

    .articles-grid { grid-template-columns: 1fr; }
    .flow-steps { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 36px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { justify-content: center; }
    .qa-question-text { font-size: 14px; }
}