/* ==========================================================
   首页（400电话推广页）专用样式
   依赖 style.css 中的配色变量，视觉风格与原站保持一致
   ========================================================== */

/* ---------- 首屏 ---------- */
.hero {
    position: relative;
    overflow: hidden;
    padding: 60px 20px 0;
    background: linear-gradient(135deg, #ffffff 0%, #fff6f4 45%, #ffe7e2 100%);
}

.hero::after {
    content: "";
    position: absolute;
    right: -160px;
    top: -170px;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    background: rgba(231, 76, 60, 0.07);
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 46px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(231, 76, 60, 0.1);
    color: var(--c-primary);
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: 42px;
    line-height: 1.25;
    font-weight: 800;
    color: var(--c-dark);
    margin: 0 0 16px;
}

.hero h1 em {
    font-style: normal;
    color: var(--c-primary);
}

.hero-sub {
    color: var(--c-gray);
    font-size: 16px;
    line-height: 1.8;
    margin: 0 0 26px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 22px;
}

.hero-points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
    color: var(--c-gray);
    font-size: 14px;
}

.hero-points .ico {
    color: var(--c-primary);
}

/* 首屏选号卡 */
.hero-search {
    background: #fff;
    border: 1px solid #ffe0da;
    border-radius: 12px;
    padding: 28px 26px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.hero-search h2 {
    font-size: 18px;
    color: var(--c-dark);
    margin: 0 0 18px;
    text-align: center;
}

.hero-search-form .number-input-group {
    justify-content: center;
    margin-bottom: 16px;
}

.hero-search-form .digit-inputs {
    margin: 0;
}

.hero-search-tip {
    color: #8d9499;
    font-size: 13px;
    line-height: 1.7;
    margin: 14px 0 12px;
}

.hero-search-tip a {
    color: var(--c-primary);
}

.hero-search-links {
    list-style: none;
    margin: 0;
    padding: 12px 0 0;
    border-top: 1px dashed #eee;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.hero-search-links a {
    color: var(--c-gray);
    font-size: 13px;
    text-decoration: none;
}

.hero-search-links a:hover {
    color: var(--c-primary);
}

/* 数据条 */
.hero-stats {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 48px auto 0;
    padding: 26px 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    background: #fff;
    border-radius: 12px 12px 0 0;
    box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.05);
}

.stat {
    text-align: center;
    border-right: 1px solid #f1f1f1;
}

.stat:last-child {
    border-right: none;
}

.stat strong {
    display: block;
    font-size: 26px;
    font-weight: 800;
    color: var(--c-primary);
}

.stat span {
    color: var(--c-gray);
    font-size: 13px;
}

/* ---------- 号段 ---------- */
.section-segments {
    padding: 26px 20px;
}

.segment-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 14px 22px;
}

.segment-label {
    color: var(--c-gray);
    font-size: 14px;
}

.segment-item {
    background: var(--c-bg);
    border-radius: 20px;
    padding: 8px 18px;
    font-size: 13px;
    color: var(--c-gray);
}

.segment-item strong {
    color: var(--c-dark);
    font-size: 14px;
    margin-right: 6px;
}

.segment-note {
    color: #b2bec3;
    font-size: 13px;
}

/* ---------- 优势 ---------- */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.adv-card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--c-radius);
    padding: 26px 22px;
    transition: all 0.25s;
}

.adv-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--c-shadow-hover);
    border-color: #ffd9d2;
}

.adv-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(231, 76, 60, 0.1);
    color: var(--c-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.adv-card h3 {
    font-size: 17px;
    color: var(--c-dark);
    margin: 0 0 10px;
}

.adv-card p {
    color: var(--c-gray);
    font-size: 14px;
    line-height: 1.8;
    margin: 0;
}

/* ---------- 功能矩阵 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.feature-item {
    display: flex;
    gap: 12px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--c-radius);
    padding: 18px 16px;
    transition: all 0.25s;
}

.feature-item:hover {
    border-color: #ffd9d2;
    box-shadow: var(--c-shadow);
}

.feature-icon {
    color: var(--c-primary);
}

.feature-text h3 {
    font-size: 15px;
    color: var(--c-dark);
    margin: 0 0 6px;
}

.feature-text p {
    font-size: 13px;
    color: var(--c-gray);
    line-height: 1.7;
    margin: 0;
}

/* ---------- 资费 ---------- */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    align-items: stretch;
}

.plan-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 30px 24px;
    transition: all 0.25s;
}

.plan-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--c-shadow-hover);
}

.plan-card-hot {
    border-color: var(--c-primary);
    box-shadow: 0 10px 30px rgba(231, 76, 60, 0.15);
}

.plan-tag {
    position: absolute;
    top: -12px;
    left: 24px;
    background: var(--c-primary);
    color: #fff;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 12px;
}

.plan-name {
    margin: 0 0 12px;
    font-size: 18px;
    color: var(--c-dark);
}

.plan-price {
    color: var(--c-primary);
    margin-bottom: 10px;
}

.plan-price strong {
    font-size: 34px;
    font-weight: 800;
}

.plan-price span {
    font-size: 14px;
    color: var(--c-gray);
    margin-left: 4px;
}

.plan-desc {
    color: #8d9499;
    font-size: 13px;
    line-height: 1.7;
    margin: 0 0 18px;
}

.plan-items {
    list-style: none;
    margin: 0 0 24px;
    padding: 0;
    flex: 1 1 auto;
}

.plan-items li {
    color: var(--c-gray);
    font-size: 14px;
    padding: 7px 0;
    border-bottom: 1px dashed #f1f1f1;
}

.plan-items .ico {
    color: var(--c-primary);
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat:nth-child(2n) {
        border-right: none;
    }

    .adv-grid,
    .plan-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 36px 16px 0;
    }

    .hero h1 {
        font-size: 27px;
    }

    .hero-sub {
        font-size: 14px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-search {
        padding: 22px 16px;
    }

    .hero-stats {
        margin-top: 30px;
        gap: 12px;
    }

    .stat strong {
        font-size: 20px;
    }

    .adv-grid,
    .plan-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }
}