/* roulang page: index */
:root {
            --primary: #0D9488;
            --primary-deep: #0B6B63;
            --primary-light: #B8E6DF;
            --accent: #F26B7C;
            --accent-light: #FCD8DD;
            --bg-soft: #F7F8F7;
            --bg-card: #FFFFFF;
            --ink: #101C24;
            --muted: #5B6C74;
            --divider: rgba(16, 28, 36, .08);
            --radius: 14px;
            --shadow-card: 0 6px 24px rgba(16, 28, 36, .05);
            --shadow-hover: 0 12px 30px rgba(16, 28, 36, .10);
            --container-padding: 16px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg-soft);
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input, textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 72rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--divider);
            box-shadow: 0 4px 16px rgba(16, 28, 36, .04);
            transition: all .35s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .92);
            box-shadow: 0 8px 24px rgba(16, 28, 36, .08);
        }

        .site-header .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #0D9488, #0B6B63);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: .5px;
            line-height: 1.2;
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 17px;
            }
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav a {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-radius: 999px;
            transition: all .2s;
        }

        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(13, 148, 136, .10);
            color: var(--primary-deep);
        }

        .main-nav a.active {
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff !important;
            font-weight: 600;
            padding: 9px 20px !important;
            border-radius: 999px;
            transition: all .25s;
            box-shadow: 0 2px 8px rgba(13, 148, 136, .25);
        }

        .nav-cta:hover {
            background: var(--primary-deep) !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(13, 148, 136, .32) !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255,255,255,.5);
            align-items: center;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: all .3s;
        }

        .mobile-nav {
            display: none;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--divider);
            padding: 10px 16px 20px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav a {
            padding: 12px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-radius: 10px;
            transition: background .2s;
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(13, 148, 136, .08);
            color: var(--primary-deep);
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 999px;
            font-size: 15px;
            transition: all .25s;
            box-shadow: 0 4px 14px rgba(13, 148, 136, .25);
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(13, 148, 136, .35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(255, 255, 255, .15);
            color: var(--ink);
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 999px;
            font-size: 15px;
            border: 1px solid rgba(16, 28, 36, .2);
            backdrop-filter: blur(6px);
            transition: all .25s;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-deep);
            background: rgba(255, 255, 255, .6);
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 999px;
            font-size: 15px;
            transition: all .25s;
            box-shadow: 0 4px 14px rgba(242, 107, 124, .25);
        }

        .btn-accent:hover {
            background: #e45a6c;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(242, 107, 124, .32);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--ink);
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            transition: all .2s;
            border: none;
        }

        .btn-white:hover {
            background: #f0f2f0;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0,0,0,.1);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(247,248,247,.94) 0%, rgba(247,248,247,.78) 46%, rgba(247,248,247,.30) 100%);
        }

        .hero-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(16,28,36,.25) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding-top: 120px;
            padding-bottom: 120px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(13,148,136,.12);
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .5px;
            border: 1px solid rgba(13,148,136,.2);
        }

        .hero-title {
            font-size: clamp(32px, 4.6vw, 52px);
            font-weight: 800;
            line-height: 1.18;
            color: var(--ink);
            margin-top: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--muted);
            margin-top: 20px;
            max-width: 600px;
            font-weight: 400;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
        }

        .hero-data {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 40px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--divider);
        }

        .hero-data-item .num {
            font-size: 26px;
            font-weight: 800;
            color: var(--ink);
            font-family: inherit;
            line-height: 1.3;
        }

        .hero-data-item .label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 2px;
        }

        /* Metrics band */
        .metrics-band {
            position: relative;
            z-index: 10;
            margin-top: -64px;
            padding-bottom: 30px;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--divider);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            transition: all .3s;
        }

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

        .metric-card .metric-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 20px;
        }

        .metric-card .value {
            font-size: 28px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .metric-card .label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 2px;
        }

        .metric-card .trend {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(13,148,136,.08);
            color: var(--primary-deep);
            padding: 2px 10px;
            border-radius: 999px;
        }

        @media (max-width: 992px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-card .value {
                font-size: 22px;
            }
            .metric-card .label {
                font-size: 12px;
            }
        }

        /* Section common */
        .section-padding {
            padding-top: clamp(70px, 9vw, 110px);
            padding-bottom: clamp(70px, 9vw, 110px);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 750;
            line-height: 1.3;
            color: var(--ink);
        }

        .section-desc {
            font-size: 16px;
            color: var(--muted);
            margin-top: 12px;
            max-width: 680px;
            line-height: 1.75;
        }

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

        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--divider);
            padding: 28px 24px;
            transition: all .3s;
            box-shadow: var(--shadow-card);
        }

        .feature-card:hover {
            border-color: rgba(13,148,136,.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .feature-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 650;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Compare Section */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .compare-card {
            border-radius: 16px;
            padding: 36px 32px;
            transition: all .3s;
        }

        .compare-old {
            background: #F0F1EF;
            border: 1px solid var(--divider);
        }

        .compare-new {
            background: linear-gradient(135deg, rgba(13,148,136,.06), rgba(242,107,124,.06));
            border: 1px solid rgba(13,148,136,.12);
        }

        .compare-card .badge-compare {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .badge-old {
            background: rgba(91,108,116,.1);
            color: var(--muted);
        }

        .badge-new {
            background: rgba(13,148,136,.12);
            color: var(--primary-deep);
        }

        .compare-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.6;
            color: var(--ink);
        }

        .compare-list .status-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-top: 2px;
        }

        .status-icon.plus {
            background: rgba(13,148,136,.12);
            color: var(--primary-deep);
        }

        .status-icon.minus {
            background: rgba(91,108,116,.1);
            color: var(--muted);
        }

        @media (max-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-section {
            background: #fff;
        }

        .faq-container {
            max-width: 48rem;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--divider);
            transition: all .3s;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--divider);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 8px;
            cursor: pointer;
            width: 100%;
            text-align: left;
            background: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
        }

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

        .faq-q .faq-mark {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(13,148,136,.1);
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            transition: all .3s;
        }

        .faq-item.active .faq-mark {
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }

        .faq-a-content {
            padding: 0 30px 22px 30px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* Contact / CTA */
        .cta-panel {
            background: linear-gradient(135deg, rgba(13,148,136,.08), rgba(242,107,124,.08));
            border-radius: 20px;
            padding: clamp(40px, 6vw, 80px);
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(13,148,136,.12);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .cta-title {
            font-size: clamp(22px, 2.6vw, 32px);
            font-weight: 750;
            line-height: 1.35;
        }

        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(16,28,36,.12);
            border-radius: 10px;
            font-size: 15px;
            background: #f9faf9;
            transition: all .2s;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(13,148,136,.15);
        }

        .form-checkbox {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-top: 10px;
        }

        .form-checkbox input {
            margin-top: 3px;
        }

        /* Footer */
        .site-footer {
            background: #101C24;
            color: rgba(255,255,255,.7);
            padding-top: 60px;
            padding-bottom: 30px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: rgba(255,255,255,.1);
            color: #fff;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,.6);
            max-width: 300px;
        }

        .footer-col h4 {
            color: rgba(255,255,255,.9);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 14px;
            color: rgba(255,255,255,.6);
            transition: all .2s;
        }

        .footer-col a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255,255,255,.4);
        }

        @media (max-width: 992px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* Rescue buttons */
        .brand-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(13,148,136,.1);
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
        }

        select.filter-select {
            background-image: none;
        }

        a:focus-visible,
        button:focus-visible,
        .faq-q:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(13,148,136,.4);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
  --primary: #0D9488;
  --primary-deep: #0B6B63;
  --primary-light: #B8E6DF;
  --accent: #F26B7C;
  --accent-light: #FCD8DD;
  --bg-soft: #F7F8F7;
  --bg-card: #FFFFFF;
  --ink: #101C24;
  --muted: #5B6C74;
  --divider: rgba(16, 28, 36, .08);
  --radius: 14px;
  --shadow-card: 0 6px 24px rgba(16, 28, 36, .05);
  --shadow-hover: 0 12px 30px rgba(16, 28, 36, .10);
  --container-padding: 16px;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background-color: var(--bg-soft);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea { font-family: inherit; }
.container-custom {
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (min-width: 1024px) {
  .container-custom { padding-left: 2rem; padding-right: 2rem; }
}

/* 首屏页头背景纹理 */
.category-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(11,107,99,.06) 0%, rgba(184,230,223,.18) 42%, rgba(252,216,221,.20) 100%);
  overflow: hidden;
  padding-top: 148px;
  padding-bottom: 76px;
}
.category-hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: 28px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(242,107,124,.12) 0%, transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.category-hero::after {
  content: '';
  position: absolute;
  left: -100px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(13,148,136,.10) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
  position: relative;
  z-index: 2;
}
.breadcrumb a { transition: color .2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(16,28,36,.3); margin: 0 2px; }

/* 导航继承首页设计系统 */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--divider);
  box-shadow: 0 4px 16px rgba(16, 28, 36, .04);
  transition: all .35s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.94);
  box-shadow: 0 8px 24px rgba(16,28,36,.08);
}
.site-header .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo-area { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #0D9488, #0B6B63);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px; flex-shrink: 0;
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: .5px; line-height: 1.2; }
@media (max-width: 380px) { .logo-text { font-size: 17px; } }

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 999px;
  transition: all .2s;
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(13, 148, 136, .10);
  color: var(--primary-deep);
}
.main-nav a.active { font-weight: 600; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff !important;
  font-weight: 600;
  padding: 9px 20px !important;
  border-radius: 999px;
  transition: all .25s;
  box-shadow: 0 2px 8px rgba(13,148,136,.25);
}
.nav-cta:hover {
  background: var(--primary-deep) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(13,148,136,.32) !important;
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 8px;
  background: rgba(255,255,255,.5);
  align-items: center;
  border-radius: 8px;
  transition: background .2s;
}
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all .3s;
}
.mobile-nav {
  display: none;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--divider);
  padding: 10px 16px 20px;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 10px;
  transition: background .2s;
}
.mobile-nav a:hover, .mobile-nav a.active {
  background: rgba(13,148,136,.08);
  color: var(--primary-deep);
}
@media (min-width: 900px) {
  .main-nav { display: flex; }
  .hamburger { display: none; }
  .mobile-nav { display: none !important; }
}
@media (max-width: 899px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
}

/* 筛选胶囊 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  position: relative;
  z-index: 2;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 500;
  background: #ffffff;
  border: 1px solid var(--divider);
  border-radius: 999px;
  color: var(--ink);
  transition: all .2s;
  box-shadow: 0 2px 6px rgba(16,28,36,.02);
}
.filter-pill:hover {
  border-color: rgba(13,148,136,.4);
  color: var(--primary-deep);
  transform: translateY(-1px);
}
.filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(13,148,136,.25);
}

/* 内容卡片 */
.card-common {
  background: var(--bg-card);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card-common:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(13,148,136,.25);
}
.card-cover-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.card-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.card-common:hover .card-cover-wrap img {
  transform: scale(1.04);
}
.card-tag {
  position: absolute;
  left: 14px; top: 14px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(4px);
  color: var(--primary-deep);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(16,28,36,.08);
}

/* 分类页大卡横幅 */
.feature-banner-card {
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--divider);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  transition: box-shadow .3s ease;
}
.feature-banner-card:hover {
  box-shadow: var(--shadow-hover);
}
.feature-banner-content {
  padding: clamp(24px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feature-banner-img {
  position: relative;
  min-height: 260px;
}
.feature-banner-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature-banner-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.12), transparent 40%);
}
@media (max-width: 760px) {
  .feature-banner-card { grid-template-columns: 1fr; }
  .feature-banner-img { min-height: 220px; }
  .feature-banner-img img { position: static; }
}

/* 通用 CTA 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  transition: all .25s;
  box-shadow: 0 4px 14px rgba(13,148,136,.25);
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: var(--primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(13,148,136,.35);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--primary);
  color: var(--primary-deep);
  font-weight: 600;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  background: rgba(255,255,255,.85);
  transition: all .25s;
}
.btn-outline:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #F26B7C, #F07E66);
  color: #fff;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  transition: all .25s;
  box-shadow: 0 6px 18px rgba(242,107,124,.28);
  border: none;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(242,107,124,.38);
}

/* 徽标 */
.badge-soft {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(13,148,136,.08);
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}
.badge-soft-accent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: #B33A4B;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}

/* 双卡小卡片 */
.small-note-card {
  background: #ffffff;
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: all .25s;
}
.small-note-card:hover {
  border-color: rgba(13,148,136,.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* 流程步骤 */
.step-item {
  position: relative;
  padding-left: 30px;
}
.step-item::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(13,148,136,.15);
}
.step-line {
  position: relative;
}
.step-line::after {
  content: '';
  position: absolute;
  left: 8px;
  top: 22px;
  bottom: -14px;
  width: 2px;
  background: rgba(13,148,136,.12);
}
.step-item:last-child::after { display: none; }

/* FAQ */
.faq-item {
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 12px;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item[open] {
  border-color: rgba(13,148,136,.3);
  box-shadow: 0 6px 18px rgba(16,28,36,.04);
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: color .2s;
}
.faq-question:hover { color: var(--primary-deep); }
.faq-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(13,148,136,.08);
  color: var(--primary-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: all .25s;
}
.faq-icon-plus {
  margin-left: auto;
  font-size: 18px;
  color: var(--muted);
  transition: transform .3s;
}
.faq-item[open] .faq-icon-plus { transform: rotate(45deg); }
.faq-answer {
  padding: 0 20px 18px 54px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
}

/* 底部 CTA 条 */
.cta-banner {
  background: linear-gradient(120deg, #0B6B63 0%, #0D9488 55%, #0F9B8E 100%);
  border-radius: 22px;
  overflow: hidden;
  position: relative;
}
.cta-banner::before {
  content: '';
  position: absolute;
  right: -70px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14) 0%, transparent 65%);
}
.cta-banner .btn-accent {
  position: relative;
  z-index: 2;
}

/* 页脚 */
.footer-logo-title {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-logo-title .logo-icon {
  width: 34px; height: 34px;
  font-size: 16px;
  border-radius: 9px;
}
.footer-logo-title h3 {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin: 0;
  letter-spacing: .5px;
}
.site-footer {
  background: #0F171C;
  color: #A6B4BB;
  padding-top: 60px;
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-brand p {
  margin-top: 18px;
  line-height: 1.75;
  color: #78909C;
  max-width: 280px;
}
.footer-logo {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, #0D9488, #0B6B63);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 17px;
}
.footer-logo-text { font-size: 19px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.footer-col { display: flex; flex-direction: column; gap: 6px; }
.footer-col h4 {
  color: #D6E1E6;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.footer-col a {
  color: #78909C;
  font-size: 14px;
  line-height: 2;
  transition: color .2s;
}
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  padding: 20px 0 28px;
  color: #607D8B;
  font-size: 13px;
}
@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* 通用 section 间距 */
.section-pad {
  padding-top: clamp(64px, 8vw, 96px);
  padding-bottom: clamp(64px, 8vw, 96px);
}
.section-pad-tight {
  padding-top: clamp(56px, 7vw, 80px);
  padding-bottom: clamp(56px, 7vw, 80px);
}

/* 页面头部标题 */
.eyebrow {
  display: inline-block;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
h1, h2, h3 { line-height: 1.3; }
h1 {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -1px;
}
h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 750;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin: 0;
}
h3 { font-weight: 650; margin: 0; }

/* 数据指标 */
.spec-item { display: flex; align-items: baseline; gap: 4px; }
.spec-number {
  font-size: clamp(24px, 2.2vw, 36px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

/* 响应式微调 */
@media (max-width: 640px) {
  .container-custom { padding-left: 18px; padding-right: 18px; }
  h1 { letter-spacing: -.4px; }
}

/* 滚动后 header 类 */
/* 底部分页 */
.pagination-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.pagination-nav a,
.pagination-nav .page-current {
  min-width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  background: #fff;
  border: 1px solid var(--divider);
  color: var(--ink);
  transition: all .2s;
}
.pagination-nav a:hover {
  border-color: var(--primary);
  color: var(--primary-deep);
}
.pagination-nav .page-current {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}
.page-prev {
  padding: 0 16px !important;
  gap: 6px;
  display: inline-flex;
  align-items: center;
}
.page-prev:disabled,
.page-prev.disabled {
  opacity: .4;
  pointer-events: none;
}

/* 底部双条推广 */
.dual-promo {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
}
.dual-promo .promo-card {
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid var(--divider);
  padding: 30px 32px;
  transition: box-shadow .3s, transform .3s;
}
.dual-promo .promo-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
@media (max-width: 720px) {
  .dual-promo { grid-template-columns: 1fr; }
}