/* 全站布局层 — 必须在 styles.css 之后加载 */

/* ── 分栏布局 ── */
.layout-split {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 56px;
    align-items: start;
}

.layout-split--reverse {
    grid-template-columns: 1fr 320px;
}

@media (max-width: 900px) {
    .layout-split,
    .layout-split--reverse {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* ── Hero 左右分栏 ── */
.home-hero--split {
    text-align: left;
    padding: 64px 0 72px;
}

.home-hero--split .container {
    position: relative;
    z-index: 2;
}

.home-hero__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.home-hero__panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    position: relative;
    z-index: 2;
}

.home-hero__content {
    position: relative;
    z-index: 2;
}

.hero-value-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-md);
    padding: 20px 18px;
    backdrop-filter: blur(10px);
    transition: background 200ms ease, border-color 200ms ease, transform 200ms ease;
}

@media (hover: hover) {
    .hero-value-card:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: rgba(201, 162, 39, 0.4);
        transform: translateY(-2px);
    }
}

.hero-value-card strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.35;
}

.hero-value-card span {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.68);
    line-height: 1.5;
}

@media (max-width: 900px) {
    .home-hero--split { text-align: center; }
    .home-hero__grid { grid-template-columns: 1fr; }
    .home-hero__actions { justify-content: center; }
    .home-hero__panel { max-width: 400px; margin: 0 auto; }
}

/* ── 简介区 ── */
.section--intro {
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--slate-200);
}

.intro-aside {
    position: sticky;
    top: calc(var(--header-height) + 24px);
}

.intro-aside img {
    width: 100%;
    max-width: 200px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.intro-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.intro-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--slate-700);
    text-decoration: none;
    font-size: 0.9375rem;
    border: 1px solid transparent;
    transition: background var(--transition-base), border-color var(--transition-base);
}

.intro-nav a:hover {
    background: var(--slate-100);
    border-color: var(--slate-200);
    color: var(--brand-red);
}

.intro-main {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--slate-700);
    text-align: justify;
    text-indent: 2em;
}

/* ── 主打服务：横向 Feature Band ── */
.section--feature {
    background: linear-gradient(180deg, var(--surface-muted) 0%, var(--surface-elevated) 100%);
}

.feature-band {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
    background: var(--surface-elevated);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.feature-band__visual {
    position: relative;
    background:
        linear-gradient(160deg, rgba(200, 33, 36, 0.92) 0%, rgba(155, 26, 28, 0.95) 100%),
        url('../images/hero-banner.jpg') center / cover no-repeat;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 32px;
    text-align: center;
    overflow: hidden;
}

.feature-band__visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(201, 162, 39, 0.2), transparent 55%);
    pointer-events: none;
}

.feature-band__visual > * {
    position: relative;
    z-index: 1;
}

.feature-band__visual i {
    font-size: 3.5rem;
    margin-bottom: 16px;
    opacity: 0.95;
}

.feature-band__visual h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-band__body {
    padding: 40px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-band__body h3 {
    font-size: 1.5rem;
    color: var(--navy);
    margin-bottom: 12px;
}

.feature-band__body p {
    color: var(--slate-500);
    line-height: 1.75;
    margin-bottom: 24px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
    list-style: none;
    padding: 0;
}

.feature-tags li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(200, 33, 36, 0.06);
    color: var(--brand-red-dark);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.feature-band__body .btn-brand,
.feature-band__body .btn-brand-outline {
    width: fit-content;
}

.feature-band__body .btn-brand-outline {
    margin-top: 12px;
}

@media (max-width: 768px) {
    .feature-band {
        grid-template-columns: 1fr;
    }
    .feature-band__visual {
        padding: 32px 24px;
    }
    .feature-band__body {
        padding: 28px 24px;
    }
}

/* ── 营销痛点区 ── */
.section--pain-points {
    background: linear-gradient(180deg, var(--surface-elevated) 0%, var(--surface-muted) 100%);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pain-card {
    background: var(--surface-elevated);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    box-shadow: var(--shadow-soft);
}

.pain-card h3 {
    margin: 18px 0 10px;
    color: var(--navy);
    font-size: 1rem;
    font-weight: 700;
}

.pain-card p {
    color: var(--slate-500);
    font-size: 0.9rem;
    line-height: 1.7;
}

@media (max-width: 1100px) {
    .pain-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .pain-grid {
        grid-template-columns: 1fr;
    }
}

/* ── 优势网格：4 列卡片，内容始终可见 ── */
.section--advantages {
    background: var(--surface-muted);
}

.advantages-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 20px !important;
    margin-top: 0 !important;
}

.advantage-card {
    position: relative !important;
    min-height: auto !important;
    padding: 28px 22px !important;
    padding-bottom: 28px !important;
    background: var(--surface-elevated) !important;
    border: 1px solid var(--slate-200) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-soft) !important;
    transition: box-shadow var(--transition-base), transform var(--transition-base) !important;
    overflow: visible !important;
}

.advantage-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-card) !important;
}

.advantage-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 33, 36, 0.08);
    color: var(--brand-red) !important;
    border-radius: var(--radius-sm);
    font-size: 1.25rem !important;
    margin-bottom: 16px !important;
    transform: none !important;
}

.advantage-title {
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: var(--navy) !important;
    margin-bottom: 10px !important;
    transform: none !important;
    position: static !important;
}

.advantage-desc {
    position: static !important;
    max-height: none !important;
    opacity: 1 !important;
    transform: none !important;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    font-size: 0.875rem !important;
    line-height: 1.65 !important;
    color: var(--slate-500) !important;
}

@media (max-width: 1100px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 576px) {
    .advantages-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ── 数据统计（覆盖 styles.css 旧白卡片） ── */
.stats {
    padding: 56px 0 !important;
    background: var(--navy) !important;
}

.stats-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 20px !important;
}

.stat-item {
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--radius-md) !important;
    padding: 28px 16px !important;
    box-shadow: none !important;
    gap: 14px !important;
}

.stat-number {
    font-family: var(--font-numeric) !important;
    font-size: clamp(1.5rem, 3vw, 2rem) !important;
    color: #fff !important;
    font-weight: 700 !important;
}

.stat-number span {
    color: var(--brand-gold) !important;
    font-size: 0.55em !important;
    margin-left: 0.06em !important;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7) !important;
    font-size: 0.9375rem !important;
    margin-top: 8px !important;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ── 客户案例：顶部 Tab ── */
.section--cases {
    background: var(--surface-elevated);
}

.cases-layout {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.cases-tabs--horizontal {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.cases-tabs--horizontal .case-tab {
    background: var(--slate-100);
    border: 1px solid var(--slate-200);
    border-radius: 999px;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--slate-700);
    cursor: pointer;
    transition: all var(--transition-base);
    letter-spacing: 0;
    box-shadow: none;
}

.cases-tabs--horizontal .case-tab.active,
.cases-tabs--horizontal .case-tab:hover {
    background: var(--brand-red);
    border-color: var(--brand-red);
    color: #fff;
    box-shadow: var(--shadow-hover);
}

.cases-content {
    position: relative;
}

.case-detail {
    display: none;
}

.case-detail.active {
    display: block;
    animation: layoutFadeIn 0.35s ease;
}

@keyframes layoutFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: none; }
}

.case-detail-flex {
    display: grid !important;
    grid-template-columns: 360px 1fr !important;
    gap: 40px !important;
    align-items: start !important;
}

.case-img {
    border-radius: var(--radius-lg) !important;
    overflow: hidden;
    height: auto !important;
    aspect-ratio: 4/3;
    max-width: none !important;
    flex: none !important;
    box-shadow: var(--shadow-card) !important;
}

.case-company {
    color: var(--brand-red) !important;
    text-align: left !important;
    font-size: 1.125rem !important;
    letter-spacing: 0 !important;
}

.highlight {
    color: var(--brand-red-dark) !important;
}

@media (max-width: 900px) {
    .case-detail-flex {
        grid-template-columns: 1fr !important;
    }
}

/* ── 行业动态 ── */
.section--news {
    background: var(--surface-muted);
}

.news-card-large {
    display: grid !important;
    grid-template-columns: 1fr 1.2fr !important;
    gap: 0 !important;
    background: var(--surface-elevated) !important;
    border: 1px solid var(--slate-200) !important;
    border-radius: var(--radius-xl) !important;
    overflow: hidden !important;
    box-shadow: var(--shadow-card) !important;
}

.news-image-large {
    min-height: 320px;
}

.news-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-list-large {
    padding: 24px 28px !important;
}

/* ── 转化行动区 ── */
.section--conversion-cta {
    background: var(--surface-muted);
}

.conversion-cta {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    padding: 52px 48px;
    color: #fff;
    background:
        linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(155, 26, 28, 0.9) 100%),
        url('../images/hero-banner.jpg') center / cover no-repeat;
    box-shadow: var(--shadow-card);
}

.conversion-cta h2 {
    max-width: 760px;
    margin: 0 0 14px;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    line-height: 1.35;
}

.conversion-cta p {
    max-width: 680px;
    margin: 0 0 28px;
    color: rgba(255, 255, 255, 0.84);
    line-height: 1.75;
}

.conversion-cta .section-eyebrow {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.conversion-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.conversion-cta .btn-brand-outline {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.45);
}

.conversion-cta .btn-brand-outline:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.16);
}

@media (max-width: 900px) {
    .news-card-large {
        grid-template-columns: 1fr !important;
    }
    .news-image-large {
        min-height: 200px;
    }
    .conversion-cta {
        padding: 36px 24px;
    }
}

/* ── 内页通用内容块 ── */
.content-card {
    background: var(--surface-elevated);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-soft);
    line-height: 1.85;
    color: var(--slate-700);
}

.timeline-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-stack .timeline-item {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 24px;
    align-items: start;
    background: var(--surface-elevated);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-soft);
}

.timeline-stack .timeline-year {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--brand-red);
}

.timeline-stack h4 {
    color: var(--navy);
    margin-bottom: 8px;
    font-size: 1rem;
}

.timeline-stack p {
    color: var(--slate-500);
    line-height: 1.65;
    font-size: 0.9375rem;
}

.moments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.moment-card {
    background: var(--surface-elevated);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.moment-card:hover {
    box-shadow: var(--shadow-card);
    transform: translateY(-3px);
}

.moment-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.moment-card__body {
    padding: 20px;
}

.moment-card h4 {
    font-size: 1rem;
    color: var(--navy);
    margin-bottom: 8px;
    line-height: 1.5;
}

.moment-card p {
    font-size: 0.875rem;
    color: var(--slate-500);
    line-height: 1.6;
}

.moment-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--brand-red);
}