/* ============ 设计变量 ============ */
:root {
    --bg-dark: #16110d;
    --bg-body: #1a1410;
    --bg-card: #201812;
    --bg-input: #241c15;
    --bg-elevated: #2a2118;
    --accent: #c9974d;
    --accent-light: #ddb86e;
    --accent-dark: #a67835;
    --red: #8c3327;
    --cream: #f5efe2;
    --text: #f0e8d8;
    --text-secondary: #b8ac9a;
    --text-muted: #7c7365;
    --border: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(201, 151, 77, 0.4);
    --radius: 6px;
    --radius-sm: 4px;
    --radius-btn: 2px;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.4), 0 16px 40px rgba(0, 0, 0, 0.3);
    --space-section: clamp(4rem, 8vw, 8rem);
    --font-title: "Songti SC", "SimSun", "Noto Serif CJK SC", "STSong", serif;
    --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

/* ============ 基础 reset ============ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.25s ease;
}

a:hover {
    color: var(--accent-light);
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

ul,
ol {
    list-style: none;
}

.container {
    max-width: 1200px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    margin-left: auto;
    margin-right: auto;
}

section {
    position: relative;
}

/* ============ 导航栏 ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(22, 17, 13, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
    background: rgba(22, 17, 13, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.site-header .navbar {
    min-height: 72px;
    padding: 0;
}

.navbar-brand {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cream) !important;
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0;
}

.navbar-brand .brand-sep {
    width: 1px;
    height: 1.2em;
    background: var(--accent);
    opacity: 0.6;
}

.site-header .nav-link {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 0.9rem;
    letter-spacing: 0.02em;
    position: relative;
    transition: color 0.25s ease;
}

.site-header .nav-link:hover {
    color: var(--cream) !important;
}

.site-header .nav-link.active {
    color: var(--accent) !important;
}

.site-header .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0.9rem;
    right: 0.9rem;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
}

.lang-switch {
    display: flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.lang-switch a {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.25s ease;
    line-height: 1.4;
}

.lang-switch a.active {
    background: var(--accent);
    color: var(--bg-dark);
}

.lang-switch a:not(.active):hover {
    color: var(--cream);
    background: rgba(255, 255, 255, 0.06);
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: var(--bg-dark) !important;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.55rem 1.5rem;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    transition: all 0.25s ease;
    letter-spacing: 0.02em;
}

.btn-cta:hover {
    background: var(--accent-light);
    transform: translate(-1px, -1px);
    box-shadow: 0 4px 15px rgba(201, 151, 77, 0.3);
}

.navbar-toggler {
    border: 1px solid var(--border) !important;
    background: transparent;
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
}

.navbar-toggler-icon {
    background-image: none !important;
    width: 20px;
    height: 2px;
    background: var(--cream);
    position: relative;
    display: block;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--cream);
}

.navbar-toggler-icon::before {
    top: -6px;
}

.navbar-toggler-icon::after {
    top: 6px;
}

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--bg-dark);
        padding: 1rem;
        border-radius: var(--radius);
        border: 1px solid var(--border);
        margin-top: 0.5rem;
    }
    .nav-right {
        flex-wrap: wrap;
        gap: 0.75rem;
        margin-top: 0.75rem;
    }
    .site-header .nav-link {
        padding: 0.6rem 0.5rem;
    }
}

/* ============ Hero ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--bg-dark);
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.6;
    filter: contrast(1.1) saturate(0.9);
}

.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(22, 17, 13, 0.94) 0%, rgba(22, 17, 13, 0.75) 50%, rgba(22, 17, 13, 0.4) 100%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 25% 50%, transparent 0%, rgba(22, 17, 13, 0.55) 100%);
    pointer-events: none;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
    align-items: center;
}

.hero-copy {
    max-width: 640px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 1.25rem;
    font-weight: 600;
}

.hero-eyebrow::before {
    content: "";
    width: 32px;
    height: 1px;
    background: var(--accent);
}

.hero h1 {
    font-family: var(--font-title);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.12;
    color: var(--cream);
    margin-bottom: 1.5rem;
    letter-spacing: 0.01em;
}

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

.hero-sub {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: var(--bg-dark) !important;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.9rem 2.2rem;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    letter-spacing: 0.03em;
}

.btn-primary:hover {
    background: var(--accent-light);
    color: var(--bg-dark) !important;
    transform: translate(-1px, -1px);
    box-shadow: 0 6px 20px rgba(201, 151, 77, 0.35);
}

.btn-primary.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-text {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--cream) !important;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 0;
    border-bottom: 1px solid transparent;
    transition: all 0.25s ease;
}

.btn-text:hover {
    color: var(--accent) !important;
    border-bottom-color: var(--accent);
}

.btn-text i {
    font-size: 0.75rem;
    transition: transform 0.25s ease;
}

.btn-text:hover i {
    transform: translateX(4px);
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.hero-stats .stat {
    display: flex;
    flex-direction: column;
}

.hero-stats .stat strong {
    font-family: var(--font-title);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
}

.hero-stats .stat span {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Hero 表单 */
.hero-form-card {
    background: rgba(32, 24, 18, 0.85);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius);
    padding: 2.25rem;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.hero-form-card h3 {
    font-family: var(--font-title);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 0.5rem;
}

.hero-form-card .form-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 1.1rem;
}

.form-control,
.form-select {
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    width: 100%;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-input);
    border-color: var(--accent);
    color: var(--text);
    box-shadow: 0 0 0 3px rgba(201, 151, 77, 0.25);
    outline: none;
}

.form-select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%23c9974d'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c9974d' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-select option {
    background: var(--bg-card);
    color: var(--text);
}

.form-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 1rem;
    line-height: 1.5;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    z-index: 3;
}

.scroll-indicator .scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%,
    100% {
        opacity: 0.4;
        transform: scaleY(0.8);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.1);
    }
}

@media (max-width: 991px) {
    .hero {
        padding: 110px 0 70px;
    }
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .hero-form-card {
        max-width: 480px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 100px 0 60px;
    }
    .hero h1 {
        font-size: 2.1rem;
    }
    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    .hero-stats {
        gap: 1.5rem;
    }
    .hero-form-card {
        padding: 1.5rem;
    }
}

/* ============ 通用板块头部 ============ */
.section-header {
    margin-bottom: 3rem;
    position: relative;
}

.section-header .sec-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    padding-left: 1rem;
    border-left: 2px solid var(--accent);
}

.section-header h2 {
    font-family: var(--font-title);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--cream);
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 560px;
    line-height: 1.75;
}

.section-header.centered {
    text-align: center;
}

.section-header.centered .sec-tag {
    padding-left: 0;
    border-left: none;
}

.section-header.centered p {
    margin-left: auto;
    margin-right: auto;
}

/* ============ 功能分组 ============ */
.features {
    padding: var(--space-section) 0;
    background: var(--bg-body);
}

.features-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
    align-items: start;
}

.feature-item {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    overflow: hidden;
    transition: all 0.3s ease;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.feature-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-accent);
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-item:nth-child(2) {
    transform: translateY(2.5rem);
}

.feature-item:nth-child(3) {
    transform: translateY(-1rem);
}

.feature-item:nth-child(4) {
    grid-column: 2;
    transform: translateY(-3.5rem);
}

.feature-item:nth-child(2):hover,
.feature-item:nth-child(3):hover,
.feature-item:nth-child(4):hover {
    transform: translateY(calc(-4px + 2.5rem));
}

.feature-item:nth-child(3):hover {
    transform: translateY(calc(-4px - 1rem));
}

.feature-item:nth-child(4):hover {
    transform: translateY(calc(-4px - 3.5rem));
}

.feature-num {
    position: absolute;
    top: 1.5rem;
    right: 1.75rem;
    font-family: var(--font-title);
    font-size: 2.75rem;
    font-weight: 900;
    color: rgba(201, 151, 77, 0.15);
    line-height: 1;
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-sm);
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    background: rgba(201, 151, 77, 0.08);
}

.feature-item h3 {
    font-family: var(--font-title);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 0.5rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
    max-width: 320px;
}

.feature-filmstrip {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    gap: 6px;
    padding: 0 2rem 1rem;
    opacity: 0.4;
}

.feature-filmstrip span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

@media (max-width: 991px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .feature-item:nth-child(2),
    .feature-item:nth-child(3),
    .feature-item:nth-child(4) {
        transform: none;
        grid-column: auto;
    }
    .feature-item:nth-child(2):hover,
    .feature-item:nth-child(3):hover,
    .feature-item:nth-child(4):hover {
        transform: translateY(-4px);
    }
}

/* ============ 使用场景 ============ */
.scenarios {
    padding: var(--space-section) 0;
    background: var(--bg-dark);
}

.scenario-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4.5rem;
}

.scenario-row:last-child {
    margin-bottom: 0;
}

.scenario-row.reverse .scenario-media {
    order: 2;
}

.scenario-row.reverse .scenario-text {
    order: 1;
}

.scenario-media {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.scenario-media img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    filter: contrast(1.1) saturate(0.9);
    transition: transform 0.5s ease;
}

.scenario-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(22, 17, 13, 0.5) 0%, transparent 40%);
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.35);
    pointer-events: none;
}

.scenario-row:hover .scenario-media img {
    transform: scale(1.02);
}

.scenario-text {
    padding: 1rem 0;
}

.scenario-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.scenario-label::before {
    content: "";
    width: 24px;
    height: 1px;
    background: var(--accent);
}

.scenario-text h3 {
    font-family: var(--font-title);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.scenario-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.scenario-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    border-bottom: 1px solid transparent;
    transition: all 0.25s ease;
}

.scenario-link:hover {
    border-bottom-color: var(--accent);
}

.scenario-link i {
    font-size: 0.7rem;
}

@media (max-width: 991px) {
    .scenario-row,
    .scenario-row.reverse {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .scenario-row.reverse .scenario-media {
        order: 1;
    }
    .scenario-row.reverse .scenario-text {
        order: 2;
    }
}

/* ============ 成功案例/口碑 ============ */
.testimonials {
    padding: var(--space-section) 0;
    background: var(--bg-body);
}

.testimonials-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.testi-stat {
    text-align: center;
    padding: 1rem 0.5rem;
}

.testi-stat strong {
    display: block;
    font-family: var(--font-title);
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
}

.testi-stat span {
    display: block;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 0.35rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.testimonial-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 2rem 2.5rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    overflow: hidden;
}

.testimonial-card:nth-child(even) {
    margin-top: 2.5rem;
}

.testimonial-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.testimonial-quote {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-family: var(--font-title);
    font-size: 5rem;
    line-height: 1;
    color: var(--accent);
    opacity: 0.18;
    pointer-events: none;
}

.testimonial-stars {
    display: flex;
    gap: 0.25rem;
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.testimonial-stars .far {
    color: rgba(255, 255, 255, 0.2);
}

.testimonial-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 1.25rem;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.testimonial-author .avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(201, 151, 77, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 700;
}

.testimonial-author .author-info strong {
    display: block;
    font-size: 0.85rem;
    color: var(--cream);
    font-weight: 600;
}

.testimonial-author .author-info span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 胶片齿孔装饰 */
.testimonial-card::after {
    content: "";
    position: absolute;
    bottom: 12px;
    left: 2rem;
    right: 2rem;
    display: flex;
    gap: 8px;
    height: 6px;
    background: repeating-linear-gradient(90deg, rgba(201, 151, 77, 0.4) 0 4px, transparent 4px 12px);
    opacity: 0.3;
}

@media (max-width: 991px) {
    .testimonials-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .testimonial-card:nth-child(even) {
        margin-top: 0;
    }
}

@media (max-width: 576px) {
    .testimonials-stats {
        grid-template-columns: 1fr 1fr;
        padding: 1rem;
    }
}

/* ============ 价格方案 ============ */
.pricing-section {
    padding: var(--space-section) 0;
    background: var(--bg-dark);
}

.pricing-section .section-header {
    margin-bottom: 2rem;
}

.pricing-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.pricing-divider::before,
.pricing-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

.pricing-divider .divider-icon {
    color: var(--accent);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.25rem 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.pricing-card.featured {
    background: var(--bg-elevated);
    border: 1px solid var(--border-accent);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
    padding: 3rem 2.25rem;
    transform: scale(1.04);
    z-index: 2;
}

.pricing-card.featured:hover {
    transform: scale(1.04) translateY(-3px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-dark);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 0.3rem 1.2rem;
    border-radius: 20px;
    white-space: nowrap;
}

.pricing-name {
    font-family: var(--font-title);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-family: var(--font-title);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.pricing-price .price-unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

.pricing-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.pricing-features {
    list-style: none;
    margin: 0 0 1.75rem;
    padding: 0;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    padding: 0.45rem 0;
    line-height: 1.5;
}

.pricing-features li i {
    color: var(--accent);
    font-size: 0.7rem;
    margin-top: 0.35rem;
    flex-shrink: 0;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.55;
}

.pricing-features li.disabled i {
    color: var(--text-muted);
}

.btn-pricing {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-accent);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.7rem 1.5rem;
    border-radius: var(--radius-btn);
    transition: all 0.25s ease;
    cursor: pointer;
}

.btn-pricing:hover {
    background: rgba(201, 151, 77, 0.1);
    color: var(--accent-light);
}

.btn-pricing.solid {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-dark);
    font-weight: 700;
}

.btn-pricing.solid:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: var(--bg-dark);
    transform: translate(-1px, -1px);
    box-shadow: 0 4px 15px rgba(201, 151, 77, 0.3);
}

@media (max-width: 991px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 520px;
        margin: 0 auto;
    }
    .pricing-card.featured {
        transform: none;
    }
    .pricing-card.featured:hover {
        transform: translateY(-3px);
    }
}

/* ============ FAQ ============ */
.faq-section {
    padding: var(--space-section) 0;
    background: var(--bg-body);
}

.faq-wrap {
    max-width: 780px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius) !important;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: none;
}

.accordion-button {
    background: var(--bg-card);
    color: var(--cream);
    font-family: var(--font-title);
    font-size: 1rem;
    font-weight: 600;
    padding: 1.25rem 1.75rem;
    border: none;
    border-bottom: 1px solid transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 3.5rem;
    cursor: pointer;
    transition: background 0.3s ease;
    box-shadow: none;
    border-radius: 0 !important;
}

.accordion-button:not(.collapsed) {
    background: var(--bg-card);
    color: var(--accent);
    border-bottom-color: var(--border-accent);
}

.accordion-button::after {
    content: "+";
    background: none;
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent);
    width: auto;
    height: auto;
    margin-left: 1rem;
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.accordion-button:not(.collapsed)::after {
    transform: rotate(45deg);
    color: var(--accent);
}

.accordion-button:focus {
    box-shadow: none;
    outline: 2px solid rgba(201, 151, 77, 0.3);
    outline-offset: -2px;
}

.accordion-body {
    background: var(--bg-elevated);
    padding: 1.5rem 1.75rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.8;
    border-top: 1px solid var(--border);
}

.accordion-collapse.collapsing {
    transition: height 0.3s ease;
}

/* ============ 终场 CTA ============ */
.cta-final {
    position: relative;
    padding: clamp(5rem, 10vw, 8rem) 0;
    background-color: var(--bg-dark);
    text-align: center;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.35;
}

.cta-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--bg-dark) 0%, rgba(22, 17, 13, 0.7) 100%);
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-title);
    font-size: clamp(1.8rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--cream);
    line-height: 1.35;
    margin-bottom: 1.25rem;
}

.cta-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.cta-actions .btn-primary {
    font-size: 0.95rem;
}

.cta-actions .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 1px solid var(--border-accent);
    color: var(--cream) !important;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.9rem 2.2rem;
    border-radius: var(--radius-btn);
    transition: all 0.25s ease;
}

.cta-actions .btn-outline:hover {
    background: rgba(201, 151, 77, 0.1);
    border-color: var(--accent);
    color: var(--accent) !important;
    transform: translate(-1px, -1px);
}

/* ============ 页脚 ============ */
.site-footer {
    background: #0e0a07;
    padding-top: 4rem;
    color: var(--text-secondary);
}

.footer-tags {
    padding: 2.5rem 0 2rem;
    border-bottom: 1px solid var(--border);
}

.footer-tags h3 {
    font-family: var(--font-title);
    font-size: 1rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.footer-tags ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.footer-tags a {
    display: inline-block;
    font-size: 0.82rem;
    color: var(--text-muted);
    padding: 0.35rem 1rem;
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: all 0.25s ease;
}

.footer-tags a:hover {
    color: var(--accent);
    border-color: var(--border-accent);
    background: rgba(201, 151, 77, 0.05);
}

.footer-tags a::before {
    content: "+";
    color: var(--accent);
    margin-right: 0.3rem;
    font-weight: 600;
}

.footer-columns {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 3rem;
    padding: 3rem 0;
}

.footer-col h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.footer-col p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.footer-col ul li {
    margin-bottom: 0.6rem;
}

.footer-col ul a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.25s ease;
}

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

.footer-seo {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    margin-top: 2rem;
}

.footer-seo p {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 1100px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1.25rem 0 1.5rem;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-bottom .brand-name {
    font-family: var(--font-title);
    color: var(--accent);
    font-weight: 600;
}

@media (max-width: 991px) {
    .footer-columns {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .footer-col:first-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 576px) {
    .footer-columns {
        grid-template-columns: 1fr;
    }
    .footer-col:first-child {
        grid-column: auto;
    }
}

/* ============ 通用工具 ============ */
.btn-primary:focus,
.btn-cta:focus,
.btn-pricing:focus,
.cta-actions .btn-outline:focus {
    outline: 2px solid rgba(201, 151, 77, 0.5);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(201, 151, 77, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }
}