:root {
    --color-dark: #2f3437;
    --color-dark-2: #1f2326;
    --color-dark-3: #3a4044;
    --color-warm: #f5f1e8;
    --color-warm-2: #faf8f3;
    --color-border: #d8d0c2;
    --color-text: #2b2b2b;
    --color-text-2: #666666;
    --color-white: #ffffff;
    --color-red: #a3472f;
    --color-red-hover: #8e3a27;
    --color-gold: #d4a017;
    --color-gold-hover: #b78a12;
    --container: 1200px;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(31, 35, 38, 0.08);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--color-warm);
    color: var(--color-text);
    line-height: 1.75;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.container {
    width: min(92%, var(--container));
    margin: 0 auto;
}

.section {
    padding: 72px 0;
}

.section-title {
    font-size: 34px;
    color: var(--color-dark-2);
    margin-bottom: 14px;
    line-height: 1.25;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-2);
    margin-bottom: 30px;
}

.text-center {
    text-align: center;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
}

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

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

.card {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(216, 208, 194, 0.7);
}

.card-dark {
    background: var(--color-dark);
    color: var(--color-warm);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

.tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(212, 160, 23, 0.12);
    color: #8b680e;
    margin-bottom: 12px;
}

.btn-group {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-red);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-red-hover);
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--color-gold);
    color: var(--color-dark-2);
}

.btn-gold:hover {
    background: var(--color-gold-hover);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-dark-2);
}

.btn-outline:hover {
    background: var(--color-white);
    transform: translateY(-2px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(31, 35, 38, 0.96);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    color: var(--color-warm);
    font-size: 22px;
    font-weight: 800;
}

.logo small {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: rgba(245, 241, 232, .7);
}

.nav {
    display: flex;
    gap: 34px;
    align-items: center;
}

.nav a {
    color: var(--color-warm);
    font-size: 16px;
    font-weight: 700;
    position: relative;
    padding: 10px 0;
}

.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 3px;
    background: var(--color-gold);
    transition: var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .15);
    background: transparent;
    color: var(--color-warm);
    font-size: 22px;
    cursor: pointer;
}

.hero {
    min-height: 72vh;
    display: flex;
    align-items: center;
    color: #fff;
    background:
        linear-gradient(rgba(31, 35, 38, .5), rgba(31, 35, 38, .7)),
        url("截图.png") center/cover no-repeat;
}

.hero-content {
    max-width: 760px;
    padding: 88px 0;
}

.hero-kicker {
    display: inline-block;
    margin-bottom: 18px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(212, 160, 23, .18);
    color: #f6d57d;
    font-size: 14px;
    font-weight: 600;
}

.hero h1 {
    font-size: 50px;
    line-height: 1.18;
    margin-bottom: 18px;
    font-weight: 800;
}

.hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, .92);
}

.lead {
    font-size: 18px;
}

.muted {
    color: var(--color-text-2);
}

.feature-list {
    display: grid;
    gap: 18px;
}

.feature-item {
    padding: 22px;
    border-radius: 10px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.feature-item h3 {
    margin-bottom: 8px;
    font-size: 20px;
    color: var(--color-dark-2);
}

.quote {
    background: var(--color-white);
    border-left: 4px solid var(--color-gold);
    padding: 22px;
    border-radius: 0 10px 10px 0;
    box-shadow: var(--shadow);
}

.quote+.quote {
    margin-top: 18px;
}

.table-wrap {
    overflow-x: auto;
    background: var(--color-white);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

.compare-table th,
.compare-table td {
    padding: 18px 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid #ece6da;
}

.compare-table th {
    background: #f3ede2;
}

.timeline {
    display: grid;
    gap: 18px;
}

.timeline-item {
    position: relative;
    padding: 22px 22px 22px 56px;
    background: var(--color-white);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: 24px;
    top: 28px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-gold);
}

.timeline-item h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.product-card {
    overflow: hidden;
    padding: 0;
}

.product-image {
    height: 240px;
    overflow: hidden;
}

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

.product-body {
    padding: 24px;
}

.product-body h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--color-dark-2);
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0 16px;
}

.meta-pill {
    padding: 6px 10px;
    border-radius: 999px;
    background: #f3ede2;
    font-size: 13px;
    color: #7a6650;
}

.list-check {
    display: grid;
    gap: 12px;
    padding-left: 0;
}

.list-check li {
    list-style: none;
    position: relative;
    padding-left: 24px;
}

.list-check li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-red);
    font-weight: 700;
}

.contact-box {
    display: grid;
    gap: 18px;
}

.contact-item {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.contact-item h3 {
    margin-bottom: 10px;
    color: var(--color-dark-2);
}

.form {
    display: grid;
    gap: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.input,
.textarea,
.select {
    width: 100%;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 15px;
    outline: none;
}

.textarea {
    min-height: 140px;
    resize: vertical;
}

.notice {
    display: none;
    padding: 16px 18px;
    border-radius: 12px;
    background: rgba(212, 160, 23, .12);
    color: #7a5b08;
    border: 1px solid rgba(212, 160, 23, .25);
}

.site-footer {
    background: var(--color-dark-2);
    color: rgba(245, 241, 232, .85);
    padding: 56px 0 22px;
    margin-top: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 30px;
}

.footer-title {
    color: #fff;
    font-size: 20px;
    margin-bottom: 12px;
}

.footer-links {
    display: grid;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 28px;
    padding-top: 18px;
    font-size: 14px;
    color: rgba(245, 241, 232, .65);
}

@media (max-width: 1023px) {

    .grid-2,
    .grid-3,
    .grid-4,
    .footer-grid,
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero h1 {
        font-size: 40px;
    }
}

@media (max-width: 767px) {
    .mobile-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .nav {
        position: absolute;
        top: 82px;
        left: 0;
        right: 0;
        background: var(--color-dark-2);
        display: none;
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 4%;
        gap: 18px;
        border-top: 1px solid rgba(255, 255, 255, .08);
    }

    .nav.open {
        display: flex;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .footer-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 60vh;
    }

    .hero h1 {
        font-size: 30px;
    }

    .hero p,
    .lead {
        font-size: 16px;
    }

    .section {
        padding: 56px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}