/* ==========================================================================
   闫宝龙·百度账户托管 营销网站 - 主样式
   设计语言：深邃商务蓝 + 暖橙金强调色
   ========================================================================== */

/* --------------------------------------------------------------------------
   工具类
   -------------------------------------------------------------------------- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #FF6B35 0%, #FF9A56 50%, #0B3D91 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.icon-sm {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

[aria-hidden="true"] {
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    white-space: nowrap;
    border: 2px solid transparent;
    cursor: pointer;
    line-height: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #FF6B35 0%, #E55A2B 100%);
    color: #FFFFFF;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.32);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.45);
    color: #FFFFFF;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
    color: #FFFFFF;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.0625rem;
}

/* --------------------------------------------------------------------------
   顶部导航
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid transparent;
    transition: all 0.35s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    border-bottom-color: var(--border);
    box-shadow: 0 4px 20px rgba(11, 61, 145, 0.06);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-h);
    gap: 24px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    text-decoration: none;
    flex-shrink: 0;
}

.logo:hover {
    color: var(--primary);
}

.logo-brand {
    position: relative;
    display: inline-flex;
    align-items: flex-start;
}

.logo-trademark {
    font-size: 0.6em;
    color: var(--accent);
    margin-left: 1px;
    margin-top: 2px;
    font-weight: 700;
    line-height: 1;
}

.logo-divider {
    color: var(--text-mute);
    font-weight: 300;
    margin: 0 4px;
}

.logo-sub {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.02em;
}

.logo-light .logo-sub {
    color: #FF6B35;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: inline-block;
    padding: 8px 14px;
    color: var(--text-soft);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.25s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(11, 61, 145, 0.06);
}

.nav-phone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: linear-gradient(135deg, #FF6B35 0%, #E55A2B 100%);
    color: #FFFFFF;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9375rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
}

.nav-phone:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
    color: #FFFFFF;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Hero 头部Banner
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--nav-h) + 40px) 0 80px;
    overflow: hidden;
    background: linear-gradient(180deg, #0A1628 0%, #0B3D91 100%);
    color: #FFFFFF;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(30, 91, 198, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(11, 61, 145, 0.5) 0%, transparent 70%);
    animation: heroGradientShift 20s ease-in-out infinite;
}

.hero-particles {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 107, 53, 0.15);
    border: 1px solid rgba(255, 107, 53, 0.35);
    color: #FFB88A;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 32px;
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 4.25rem);
    font-weight: 900;
    line-height: 1.15;
    color: #FFFFFF;
    margin-bottom: 28px;
    letter-spacing: -0.03em;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.hero-title span {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 48px;
    line-height: 1.8;
    font-weight: 400;
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-trust {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
}

.hero-trust li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
    font-weight: 500;
}

.hero-trust i {
    width: 16px;
    height: 16px;
    color: #FF6B35;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    z-index: 2;
}

.hero-scroll:hover {
    color: #FFFFFF;
    transform: translateX(-50%) translateY(-2px);
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 14px;
    position: relative;
}

.wheel {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 8px;
    background: #FF6B35;
    border-radius: 2px;
    animation: scrollWheel 1.5s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   通用Section
   -------------------------------------------------------------------------- */
.section {
    padding: 96px 0;
    background: var(--bg);
    position: relative;
}

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

.section-dark {
    background: var(--bg-dark);
    color: #FFFFFF;
}

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

.section-eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 4px 12px;
    background: rgba(255, 107, 53, 0.08);
    border-radius: 4px;
}

.section-eyebrow.light {
    color: #FFB88A;
    background: rgba(255, 107, 53, 0.15);
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-title.light {
    color: #FFFFFF;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-soft);
    line-height: 1.7;
}

.section-subtitle.light {
    color: rgba(255, 255, 255, 0.75);
}

/* --------------------------------------------------------------------------
   数据展示
   -------------------------------------------------------------------------- */
.stats {
    padding: 64px 0;
    background: linear-gradient(135deg, #FFFFFF 0%, #F5F7FA 100%);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    text-align: center;
    padding: 32px 16px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

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

.stat-num {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 8px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.stat-num em {
    font-size: 1.5rem;
    font-weight: 700;
    font-style: normal;
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-soft);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   服务优势
   -------------------------------------------------------------------------- */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.advantage-card {
    padding: 40px 32px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.advantage-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 61, 145, 0.08);
    color: var(--icon-color, var(--primary));
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    transition: all 0.4s ease;
}

.advantage-icon i {
    width: 32px;
    height: 32px;
}

.advantage-card:hover .advantage-icon {
    background: var(--icon-color, var(--primary));
    color: #FFFFFF;
    transform: rotate(-6deg) scale(1.1);
}

.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.advantage-card p {
    color: var(--text-soft);
    line-height: 1.75;
    font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   服务项目
   -------------------------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    position: relative;
    padding: 40px 32px 32px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transition: all 0.5s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card:hover::after {
    transform: scale(1.5);
    opacity: 0.6;
}

.service-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 10px;
    background: rgba(255, 107, 53, 0.1);
    color: var(--accent);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #FFFFFF;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-icon i {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-soft);
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 0.9375rem;
    position: relative;
    z-index: 1;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    position: relative;
    z-index: 1;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    color: var(--text-soft);
    font-size: 0.9375rem;
}

.service-features i {
    width: 16px;
    height: 16px;
    color: var(--accent);
    flex-shrink: 0;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.service-link i {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.service-link:hover {
    color: var(--accent);
    gap: 10px;
}

.service-link:hover i {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   服务流程
   -------------------------------------------------------------------------- */
.process-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
}

.process-item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: all 0.4s ease;
    position: relative;
}

.process-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(255, 107, 53, 0.3);
}

.process-item:nth-child(even):hover {
    transform: translateX(-8px);
}

.process-num {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #FFFFFF;
    border-radius: 12px;
    font-size: 1.25rem;
    font-weight: 800;
    font-family: "Inter", "Helvetica Neue", sans-serif;
    box-shadow: 0 4px 12px rgba(11, 61, 145, 0.2);
}

.process-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.process-content p {
    color: var(--text-soft);
    font-size: 0.9375rem;
    line-height: 1.65;
}

/* --------------------------------------------------------------------------
   关于闫宝龙
   -------------------------------------------------------------------------- */
.about {
    background: linear-gradient(135deg, #0A1628 0%, #0B3D91 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-photo-wrap {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.about-photo-bg {
    position: absolute;
    inset: -20px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    border-radius: var(--radius-md);
    transform: rotate(-3deg);
    opacity: 0.6;
    z-index: 0;
}

.about-photo {
    position: relative;
    z-index: 1;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.about-photo-badge {
    position: absolute;
    bottom: 24px;
    right: -24px;
    background: linear-gradient(135deg, var(--accent) 0%, #E55A2B 100%);
    color: #FFFFFF;
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.4);
    z-index: 2;
    text-align: center;
    line-height: 1;
}

.about-photo-badge strong {
    font-size: 2.5rem;
    font-weight: 900;
    display: block;
}

.about-photo-badge strong small {
    font-size: 1rem;
    font-weight: 700;
    margin-left: 2px;
}

.about-photo-badge span {
    font-size: 0.875rem;
    margin-top: 4px;
    display: block;
    opacity: 0.95;
}

.about-content {
    color: #FFFFFF;
}

.about-content .section-title {
    color: #FFFFFF;
    margin-bottom: 8px;
}

.about-lead {
    font-size: 1.125rem;
    color: #FFB88A;
    font-weight: 600;
    margin-bottom: 24px;
}

.about-text p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 16px;
    line-height: 1.85;
    font-size: 0.9375rem;
}

.about-text .hl {
    color: #FF9A56;
    font-weight: 700;
}

.about-highlights {
    list-style: none;
    padding: 0;
    margin: 32px 0;
    display: grid;
    gap: 16px;
}

.about-highlights li {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.about-highlights li:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(4px);
}

.about-highlights i {
    width: 28px;
    height: 28px;
    color: var(--accent);
    flex-shrink: 0;
}

.about-highlights strong {
    display: block;
    font-size: 1.0625rem;
    margin-bottom: 2px;
    color: #FFFFFF;
}

.about-highlights span {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

/* --------------------------------------------------------------------------
   客户案例
   -------------------------------------------------------------------------- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.case-card {
    padding: 32px 24px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.case-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 61, 145, 0.08);
    color: var(--case-color, var(--primary));
    border-radius: 10px;
    margin-bottom: 20px;
    transition: all 0.4s ease;
}

.case-icon i {
    width: 24px;
    height: 24px;
}

.case-card:hover .case-icon {
    background: var(--case-color, var(--primary));
    color: #FFFFFF;
    transform: scale(1.1);
}

.case-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.case-card p {
    font-size: 0.875rem;
    color: var(--text-soft);
    margin-bottom: 16px;
    line-height: 1.6;
}

.case-stat {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(255, 107, 53, 0.08);
    color: var(--accent);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */
.faq-list {
    max-width: 960px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}

.faq-item {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item[open] {
    border-color: rgba(255, 107, 53, 0.3);
    box-shadow: var(--shadow-sm);
}

.faq-q {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: all 0.3s ease;
}

.faq-q::-webkit-details-marker {
    display: none;
}

.faq-q:hover {
    background: var(--bg-soft);
}

.faq-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #FFFFFF;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 800;
}

.faq-question {
    flex: 1;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
}

.faq-icon {
    width: 22px;
    height: 22px;
    color: var(--text-mute);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

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

.faq-a {
    padding: 0 24px 24px 80px;
    color: var(--text-soft);
    line-height: 1.85;
    font-size: 0.9375rem;
}

.faq-a p {
    margin: 0;
}

/* --------------------------------------------------------------------------
   联系方式
   -------------------------------------------------------------------------- */
.contact {
    background: linear-gradient(135deg, #0A1628 0%, #0B3D91 100%);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.contact-info {
    display: grid;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: #FFFFFF;
    text-decoration: none;
    transition: all 0.3s ease;
}

a.contact-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(8px);
    border-color: rgba(255, 107, 53, 0.4);
}

.contact-item-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent) 0%, #E55A2B 100%);
    border-radius: 10px;
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.contact-item-icon i {
    width: 22px;
    height: 22px;
}

.contact-item-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 4px;
}

.contact-item-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    font-family: "Inter", "Helvetica Neue", sans-serif;
    letter-spacing: 0.01em;
}

.contact-cta {
    margin-top: 16px;
}

.contact-cta .btn {
    width: 100%;
}

.qr-card {
    text-align: center;
    padding: 32px 24px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.qr-card img {
    width: 220px;
    height: 220px;
    margin: 0 auto 16px;
    border-radius: 8px;
}

.qr-card p {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.qr-card span {
    font-size: 0.875rem;
    color: var(--text-soft);
}

/* --------------------------------------------------------------------------
   友情链接
   -------------------------------------------------------------------------- */
.links-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.link-category {
    background: #FFFFFF;
    padding: 32px 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.link-cat-title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--bg-soft);
    position: relative;
}

.link-cat-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 32px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
}

.link-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.link-list li {
    line-height: 1;
}

.link-list a {
    display: inline-flex;
    align-items: center;
    color: var(--text-soft);
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all 0.25s ease;
    position: relative;
    padding-left: 0;
}

.link-list a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.link-list a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.link-list a:hover::before {
    width: 100%;
}

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.footer {
    background: #060B1A;
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 0;
    font-size: 0.9375rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand p {
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    margin-bottom: 16px;
    max-width: 360px;
}

.footer-contact-mini {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-contact-mini span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.9375rem;
}

.footer-contact-mini i {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: color 0.25s ease;
    font-size: 0.9375rem;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    gap: 12px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: color 0.25s ease;
}

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

/* --------------------------------------------------------------------------
   右侧悬浮
   -------------------------------------------------------------------------- */
.floating {
    position: fixed;
    right: 20px;
    bottom: 80px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-item {
    width: 60px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.6875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    position: relative;
    cursor: pointer;
}

.floating-item:hover {
    background: linear-gradient(135deg, var(--accent) 0%, #E55A2B 100%);
    color: #FFFFFF;
    transform: translateX(-4px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
    border-color: transparent;
}

.floating-item i {
    width: 20px;
    height: 20px;
}

.floating-qr .floating-popup {
    position: absolute;
    right: 75px;
    top: 50%;
    transform: translateY(-50%) scale(0.8);
    background: #FFFFFF;
    border-radius: var(--radius-sm);
    padding: 12px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    text-align: center;
}

.floating-qr:hover .floating-popup {
    opacity: 1;
    transform: translateY(-50%) scale(1);
    pointer-events: auto;
}

.floating-popup img {
    width: 140px;
    height: 140px;
    border-radius: 6px;
}

.floating-popup em {
    display: block;
    font-style: normal;
    font-size: 0.8125rem;
    color: var(--text-soft);
    margin-top: 4px;
}

.floating-top {
    opacity: 0;
    transform: translateX(20px);
    pointer-events: none;
}

.floating-top.show {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

/* --------------------------------------------------------------------------
   选中文本
   -------------------------------------------------------------------------- */
::selection {
    background: var(--accent);
    color: #FFFFFF;
}