/* roulang page: index */
/* ========== 设计变量与基础 Reset ========== */
:root {
    --color-bg-0: #0b0c10;
    --color-bg-1: #12141c;
    --color-bg-2: #1a1e2a;
    --color-primary: #a855f7;
    --color-secondary: #22d3ee;
    --color-accent: #ff4d6d;
    --color-warning: #fbbf24;
    --color-text-0: #f5f6fa;
    --color-text-1: #a9afc0;
    --color-text-2: #6b7280;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-primary: rgba(168, 85, 247, 0.35);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-primary: 0 0 0 1px var(--color-primary), 0 15px 40px rgba(168, 85, 247, 0.25);
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;
    --radius-full: 999px;
    --space-section: clamp(4rem, 8vw, 6rem);
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-bg-0);
    color: var(--color-text-0);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
}

ul, ol {
    list-style: none;
}

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

input, textarea {
    font-family: inherit;
    font-size: 1rem;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.01em;
}

::selection {
    background: rgba(168, 85, 247, 0.35);
    color: #fff;
}

:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

/* ========== 容器与工具 ========== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: clamp(1rem, 4vw, 2rem);
    padding-right: clamp(1rem, 4vw, 2rem);
}

.section {
    padding: var(--space-section) 0;
    position: relative;
}

.section--alt {
    background: var(--color-bg-1);
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3rem;
}

.section-head h2 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    margin-bottom: 0.75rem;
}

.section-head h2 span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-head p {
    color: var(--color-text-1);
    font-size: 0.95rem;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    transition: all .25s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
}

.btn-primary:hover {
    filter: brightness(1.15);
    box-shadow: 0 0 22px rgba(168, 85, 247, 0.55);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(168, 85, 247, 0.4);
}

.btn-outline {
    border-color: var(--color-primary);
    color: var(--color-text-0);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(168, 85, 247, 0.12);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.25);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.45rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.85rem 2rem;
    font-size: 1rem;
}

.btn .icon-arrow {
    transition: transform .25s ease;
    display: inline-block;
}

.btn:hover .icon-arrow {
    transform: translateX(3px);
}

/* ========== 徽章与标签 ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.5;
    background: rgba(168, 85, 247, 0.15);
    border: 1px solid rgba(168, 85, 247, 0.3);
    color: var(--color-text-0);
}

.badge--cyan {
    background: rgba(34, 211, 238, 0.12);
    border-color: rgba(34, 211, 238, 0.3);
    color: var(--color-secondary);
}

.badge--accent {
    background: rgba(255, 77, 109, 0.12);
    border-color: rgba(255, 77, 109, 0.3);
    color: var(--color-accent);
}

.badge--warn {
    background: rgba(251, 191, 36, 0.12);
    border-color: rgba(251, 191, 36, 0.3);
    color: var(--color-warning);
}

.capsule {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 1.1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-1);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    transition: all .2s ease;
    white-space: nowrap;
}

.capsule:hover {
    background: rgba(168, 85, 247, 0.15);
    color: var(--color-text-0);
    border-color: rgba(168, 85, 247, 0.4);
}

/* ========== 头部导航 ========== */
.site-header {
    position: relative;
    z-index: 100;
    background: var(--color-bg-0);
    border-bottom: 1px solid var(--color-border);
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--color-text-0);
}

.brand svg {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.brand-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-toggle {
    width: 40px;
    height: 40px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-0);
    transition: all .2s ease;
}

.nav-toggle:hover {
    border-color: var(--color-primary);
    background: rgba(168, 85, 247, 0.1);
}

/* 图标导航条 */
.icon-nav {
    border-top: 1px solid var(--color-border);
    background: rgba(11, 12, 16, 0.85);
    transition: all .3s ease;
}

.icon-nav.is-sticky {
    position: sticky;
    top: 0;
    background: rgba(11, 12, 16, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.icon-nav-track {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
    overflow-x: auto;
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.icon-nav-track::-webkit-scrollbar {
    display: none;
}

.icon-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.5rem;
    min-width: 60px;
    border-radius: var(--radius-md);
    transition: all .2s ease;
    color: var(--color-text-1);
}

.icon-nav-item:hover,
.icon-nav-item.active {
    color: var(--color-text-0);
    background: rgba(168, 85, 247, 0.08);
}

.icon-nav-item .icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    transition: all .25s ease;
}

.icon-nav-item:hover .icon-circle {
    background: rgba(168, 85, 247, 0.15);
    border-color: var(--color-border-primary);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.2);
}

.icon-nav-item .icon-circle svg {
    width: 20px;
    height: 20px;
}

.icon-nav-item .icon-label {
    font-size: 0.72rem;
    font-weight: 500;
    line-height: 1.2;
}

/* ========== Hero ========== */
.hero {
    position: relative;
    padding: clamp(3rem, 6vw, 5rem) 0 clamp(2rem, 4vw, 3rem);
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 12, 16, 0.92) 0%, rgba(11, 12, 16, 0.78) 55%, rgba(168, 85, 247, 0.2) 100%);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

.hero-copy {
    max-width: 580px;
}

.hero-copy h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: 1.2rem;
    letter-spacing: -0.01em;
    line-height: 1.25;
}

.hero-copy h1 .grad {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    color: var(--color-text-1);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.6rem;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.8rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Hero 视觉面板 */
.hero-visual {
    position: relative;
}

.hero-panel {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-primary);
    box-shadow: var(--shadow-primary);
    overflow: hidden;
    min-height: 320px;
    background: var(--color-bg-2);
}

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

.hero-panel-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 12, 16, 0.2) 0%, rgba(11, 12, 16, 0.68) 70%, rgba(11, 12, 16, 0.92) 100%);
    z-index: 1;
}

.hero-panel-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.25rem 0.8rem;
    background: linear-gradient(135deg, var(--color-accent), #ff3d5a);
    color: #fff;
    font-weight: 700;
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.05em;
}

.hero-panel-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #fff;
    animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-panel-data {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    padding: 1.2rem 1.2rem 1.1rem;
    background: rgba(11, 12, 16, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-panel-data .ob-item {
    text-align: center;
}

.hero-panel-data .ob-item .ob-num {
    font-family: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.2;
}

.hero-panel-data .ob-item .ob-label {
    font-size: 0.68rem;
    color: var(--color-text-1);
    margin-top: 2px;
}

/* Hero 底部胶囊行 */
.hero-capsules {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-top: 1.5rem;
    margin-top: 2.5rem;
    padding-bottom: 0.25rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.hero-capsules::-webkit-scrollbar {
    display: none;
}

/* ========== 分类导航服务板块 ========== */
.categories {
    background: var(--color-bg-0);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.category-card {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg-1);
    border: 1px solid var(--color-border);
    transition: all .25s ease;
    cursor: pointer;
}

.category-card:hover {
    border-color: var(--color-border-primary);
    background: var(--color-bg-2);
    box-shadow: var(--shadow-card), 0 0 20px rgba(168, 85, 247, 0.15);
    transform: translateY(-3px);
}

.category-card .cate-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    color: var(--color-primary);
    transition: all .25s ease;
}

.category-card:hover .cate-icon {
    background: rgba(168, 85, 247, 0.2);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.3);
}

.category-card .cate-icon svg {
    width: 22px;
    height: 22px;
}

.category-card .cate-body {
    flex: 1;
    min-width: 0;
}

.category-card .cate-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
    color: var(--color-text-0);
}

.category-card .cate-desc {
    font-size: 0.74rem;
    color: var(--color-text-2);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-card .cate-arrow {
    flex-shrink: 0;
    color: var(--color-text-2);
    transition: all .25s ease;
}

.category-card:hover .cate-arrow {
    color: var(--color-primary);
    transform: translateX(3px);
}

.category-card .cate-arrow svg {
    width: 16px;
    height: 16px;
}

/* ========== 优势数据 ========== */
.stats-section {
    background: linear-gradient(135deg, rgba(18, 20, 28, 0.95), rgba(11, 12, 16, 0.92)), url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    padding: clamp(3rem, 5vw, 4.5rem) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 300px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    transform: translateX(-50%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem 1rem;
    position: relative;
    background: rgba(168, 85, 247, 0.06);
    border: 1px solid rgba(168, 85, 247, 0.2);
    clip-path: polygon(12px 0, calc(100% - 12px) 0, 100% 12px, 100% calc(100% - 12px), calc(100% - 12px) 100%, 12px 100%, 0 calc(100% - 12px), 0 12px);
}

.stat-item:nth-child(2) {
    background: rgba(34, 211, 238, 0.06);
    border-color: rgba(34, 211, 238, 0.2);
}

.stat-item:nth-child(3) {
    background: rgba(255, 77, 109, 0.06);
    border-color: rgba(255, 77, 109, 0.2);
}

.stat-item:nth-child(4) {
    background: rgba(251, 191, 36, 0.06);
    border-color: rgba(251, 191, 36, 0.2);
}

.stat-num {
    font-family: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-primary);
}

.stat-item:nth-child(2) .stat-num { color: var(--color-secondary); }
.stat-item:nth-child(3) .stat-num { color: var(--color-accent); }
.stat-item:nth-child(4) .stat-num { color: var(--color-warning); }

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-1);
    margin-top: 0.35rem;
}

.stat-plus {
    font-size: 1.2rem;
    font-weight: 400;
    color: inherit;
}

/* ========== 案例卡片 ========== */
.cases {
    background: var(--color-bg-0);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.case-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all .25s ease;
    cursor: pointer;
}

.case-card:hover {
    border-color: var(--color-border-primary);
    background: var(--color-bg-2);
    box-shadow: var(--shadow-primary);
    transform: translateY(-4px);
}

.case-card .case-cover {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--color-bg-2);
}

.case-card .case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
}

.case-card:hover .case-cover img {
    transform: scale(1.05);
}

.case-card .case-cover .case-cover-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.25), rgba(34, 211, 238, 0.15));
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 14px 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.3);
    font-size: 3rem;
    font-weight: 700;
    font-family: "Barlow Condensed", sans-serif;
}

.case-cover-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
}

.case-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.2rem 1.2rem 1.1rem;
}

.case-body h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.case-body h3 a {
    transition: color .2s ease;
}

.case-card:hover .case-body h3 a {
    color: var(--color-primary);
}

.case-body p {
    font-size: 0.85rem;
    color: var(--color-text-1);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 0.9rem;
}

.case-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.7rem;
    border-top: 1px solid var(--color-border);
}

.case-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--color-text-2);
}

.case-meta .meta-item svg {
    width: 15px;
    height: 15px;
}

.case-meta .meta-item .num {
    font-family: "Barlow Condensed", "DIN Alternate", sans-serif;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--color-text-1);
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: all .2s ease;
}

.case-link svg {
    width: 14px;
    height: 14px;
    transition: transform .25s ease;
}

.case-link:hover {
    color: var(--color-secondary);
}

.case-link:hover svg {
    transform: translateX(3px);
}

/* 最新发布列表 */
.latest-wrap {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    background: var(--color-bg-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.75rem;
}

.latest-wrap .latest-panel {
    min-width: 0;
}

.latest-wrap .latest-panel + .latest-panel {
    border-left: 1px solid var(--color-border);
    padding-left: 1.5rem;
}

.latest-panel h3 {
    font-size: 0.95rem;
    color: var(--color-text-0);
    margin-bottom: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.latest-panel h3::before {
    content: '';
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: var(--color-primary);
}

.latest-panel ul li {
    padding: 0.4rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.latest-panel ul li:last-child {
    border-bottom: none;
}

.latest-panel ul li a {
    font-size: 0.83rem;
    color: var(--color-text-1);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color .2s ease;
}

.latest-panel ul li a:hover {
    color: var(--color-primary);
}

.latest-panel .latest-date {
    flex-shrink: 0;
    font-size: 0.72rem;
    color: var(--color-text-2);
    font-family: "Barlow Condensed", sans-serif;
}

/* ========== 方案/专题指南 ========== */
.guides {
    background: var(--color-bg-1);
}

.guides-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.guide-card {
    background: var(--color-bg-0);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.25rem;
    transition: all .25s ease;
    display: flex;
    flex-direction: column;
}

.guide-card:hover {
    background: var(--color-bg-2);
    border-color: var(--color-border-primary);
    box-shadow: 0 0 25px rgba(168, 85, 247, 0.15);
    transform: translateY(-3px);
}

.guide-card .guide-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    color: var(--color-primary);
    margin-bottom: 0.9rem;
}

.guide-card .guide-icon svg {
    width: 20px;
    height: 20px;
}

.guide-card h3 {
    font-size: 1rem;
    margin-bottom: 0.7rem;
}

.guide-card ul {
    flex: 1;
    margin-bottom: 0.9rem;
}

.guide-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: var(--color-text-1);
    padding: 0.2rem 0;
    line-height: 1.5;
}

.guide-card ul li::before {
    content: '▸';
    color: var(--color-secondary);
    flex-shrink: 0;
    font-size: 0.76rem;
    line-height: 1.4;
}

.guide-card .guide-tags {
    display: flex;
    gap: 0.4rem;
}

/* ========== FAQ 手风琴 ========== */
.faq {
    background: var(--color-bg-0);
}

.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.faq-item {
    background: var(--color-bg-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color .25s ease, box-shadow .25s ease;
}

.faq-item:hover {
    border-color: rgba(168, 85, 247, 0.25);
}

.faq-item.open {
    border-color: var(--color-border-primary);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.1);
    border-left: 2px solid var(--color-primary);
}

.faq-header button {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1.1rem;
    text-align: left;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-text-0);
    background: transparent;
    transition: color .2s ease;
}

.faq-header button:hover {
    color: var(--color-primary);
}

.faq-item.open .faq-header button {
    color: var(--color-primary);
}

.faq-header .faq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-text-2);
    transition: transform .3s ease, color .3s ease;
}

.faq-header .faq-icon svg {
    width: 20px;
    height: 20px;
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.faq-answer {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height .35s ease, opacity .35s ease;
}

.faq-answer-inner {
    padding: 0 1.1rem 0.9rem;
    font-size: 0.85rem;
    color: var(--color-text-1);
    line-height: 1.7;
    border-top: 1px dashed rgba(255, 255, 255, 0.08);
    padding-top: 0.8rem;
}

/* ========== 联系 CTA + 表单 ========== */
.cta-section {
    position: relative;
    background: url('/assets/images/backpic/back-3.jpg');
    background-size: cover;
    background-position: center;
    padding: var(--space-section) 0;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(11, 12, 16, 0.92) 40%, rgba(18, 20, 28, 0.8) 80%, rgba(168, 85, 247, 0.3) 100%);
    z-index: 1;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -20%;
    width: 120%;
    height: 60px;
    background: rgba(34, 211, 238, 0.08);
    transform: rotate(-1deg);
    z-index: 2;
    pointer-events: none;
}

.cta-wrap {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

.cta-info h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.cta-info h2 .grad {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-info p {
    color: var(--color-text-1);
    font-size: 0.92rem;
    line-height: 1.8;
    margin-bottom: 1.4rem;
    max-width: 440px;
}

.cta-meta-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    margin-bottom: 1.6rem;
}

.cta-meta-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-1);
}

.cta-meta-list li svg {
    width: 16px;
    height: 16px;
    color: var(--color-secondary);
}

.cta-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* 联系表单 */
.contact-form-card {
    background: var(--color-bg-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 3vw, 2rem);
    box-shadow: var(--shadow-card);
}

.contact-form-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.35rem;
}

.contact-form-card .form-desc {
    font-size: 0.85rem;
    color: var(--color-text-2);
    margin-bottom: 1.4rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-1);
    margin-bottom: 0.35rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    height: 44px;
    padding: 0.5rem 0.9rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-0);
    font-size: 0.9rem;
    transition: all .25s ease;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-2);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
    outline: none;
    background: rgba(168, 85, 247, 0.03);
}

.form-submit {
    width: 100%;
    margin-top: 0.5rem;
}

.form-note {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--color-text-2);
    margin-top: 0.9rem;
    justify-content: center;
}

.form-note svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
}

/* ========== 页脚 ========== */
.site-footer {
    background: #07080c;
    border-top: 1px solid var(--color-border);
    padding-top: 3.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    gap: 2rem;
    padding-bottom: 2.5rem;
}

.footer-brand .brand {
    margin-bottom: 0.9rem;
    font-size: 1.1rem;
}

.footer-brand p {
    font-size: 0.83rem;
    color: var(--color-text-2);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    gap: 0.6rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-1);
    transition: all .25s ease;
}

.footer-social a:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(168, 85, 247, 0.1);
}

.footer-social svg {
    width: 17px;
    height: 17px;
}

.footer-col h4 {
    font-size: 0.92rem;
    margin-bottom: 0.9rem;
    color: var(--color-text-0);
}

.footer-col ul li {
    padding: 0.22rem 0;
}

.footer-col ul li a {
    font-size: 0.83rem;
    color: var(--color-text-2);
    transition: all .2s ease;
}

.footer-col ul li a:hover {
    color: var(--color-primary);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    font-size: 0.83rem;
    color: var(--color-text-2);
    padding: 0.22rem 0;
}

.footer-contact svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-text-2);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 1.1rem 0;
    text-align: center;
}

.footer-bottom .container {
    font-size: 0.75rem;
    color: var(--color-text-2);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.4rem 1.2rem;
    align-items: center;
}

.footer-bottom a {
    color: var(--color-text-1);
}

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

/* ========== 响应式断点 ========== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .hero-visual {
        max-width: 560px;
    }
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .guides-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    .cta-wrap {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }
    .icon-nav {
        display: none;
    }
    .icon-nav.open {
        display: block;
    }
    .icon-nav-track {
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    .header-main {
        height: 56px;
    }
    .hero {
        padding-top: 2rem;
    }
    .hero-copy h1 {
        font-size: 1.7rem;
    }
    .hero-sub {
        font-size: 0.9rem;
    }
    .hero-panel {
        min-height: 240px;
    }
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    .category-card {
        padding: 0.85rem 0.8rem;
    }
    .category-card .cate-desc {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        font-size: 0.7rem;
    }
    .case-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .latest-wrap {
        grid-template-columns: 1fr;
        padding: 1.2rem 1.2rem;
    }
    .latest-wrap .latest-panel + .latest-panel {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--color-border);
        padding-top: 1rem;
        margin-top: 0.5rem;
    }
    .guides-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }
    .stat-item {
        padding: 1.1rem 0.5rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.8rem;
    }
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    .hero-ctas .btn {
        width: 100%;
    }
    .cta-btns .btn {
        width: 100%;
    }
    .faq-list {
        gap: 0.5rem;
    }
    .section-head {
        margin-bottom: 2rem;
    }
}

@media (max-width: 380px) {
    .category-grid {
        grid-template-columns: 1fr 1fr;
    }
    .brand {
        font-size: 1rem;
    }
    .header-actions .btn-sm {
        display: none;
    }
}

/* ========== 微妙动画 ========== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-copy h1,
.hero-sub,
.hero-ctas,
.hero-tags,
.hero-visual {
    animation: fadeUp .6s ease forwards;
}

.hero-copy h1 { animation-delay: .05s; }
.hero-sub { animation-delay: .15s; }
.hero-ctas { animation-delay: .25s; }
.hero-tags { animation-delay: .35s; }
.hero-visual { animation-delay: .2s; }

/* 网格点阵背景占位 */
.pattern-grid {
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 14px 14px;
}