*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1a2634;
            background: #f8fafc;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1e7e6c;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0e4f42;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            color: #0b2b36;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #0f3a48;
            border-bottom: 3px solid #d4e8e2;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #1a4d5e;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #2a5f6e;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2d3a45;
        }
        strong {
            color: #0b2b36;
            font-weight: 700;
        }
        .lead {
            font-size: 1.2rem;
            line-height: 1.8;
            color: #1f3a44;
            font-weight: 400;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2b36 0%, #1a5f6e 50%, #0e4f42 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: opacity 0.2s;
        }
        .my-logo i {
            font-size: 1.9rem;
            color: #f9d56e;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
            color: #fff;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 1rem;
            opacity: 0.7;
            margin-left: 0.2rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: all 0.2s ease;
        }
        .main-nav a:hover {
            color: #fff;
            border-bottom-color: #f9d56e;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.35rem;
            font-size: 0.85rem;
        }
        .main-nav.open {
            display: flex;
            flex-direction: column;
            width: 100%;
            padding: 1rem 0 0.5rem 0;
            gap: 0.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 0.8rem;
        }
        .main-nav.open a {
            padding: 0.4rem 0;
            border-bottom: none;
        }
        .breadcrumb {
            background: #eef5f2;
            padding: 0.7rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce8e2;
        }
        .breadcrumb-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.2rem;
        }
        .breadcrumb a {
            color: #1e7e6c;
        }
        .breadcrumb a:hover {
            color: #0e4f42;
        }
        .breadcrumb .sep {
            color: #8aa8a0;
            margin: 0 0.3rem;
        }
        .breadcrumb .current {
            color: #4a6b60;
            font-weight: 500;
        }
        .hero {
            padding: 2.5rem 0 1.5rem 0;
            background: #fff;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .hero-text {
            order: 1;
        }
        .hero-image {
            order: 2;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            background: #eef5f2;
            padding: 0.5rem;
        }
        .hero-image img {
            border-radius: 12px;
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .hero .lead {
            font-size: 1.2rem;
            margin-bottom: 1.2rem;
        }
        .hero-badge {
            display: inline-block;
            background: #d4e8e2;
            color: #0b2b36;
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .content-section {
            background: #fff;
            padding: 2rem 0 3rem 0;
        }
        .content-section:nth-child(even) {
            background: #f8fafc;
        }
        .section-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.8rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #f0f7f4;
            border-radius: 14px;
            padding: 1.8rem 1.5rem;
            transition: transform 0.2s ease, box-shadow 0.3s ease;
            border: 1px solid #dce8e2;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            font-size: 2.2rem;
            color: #1a6f5e;
            margin-bottom: 1rem;
        }
        .feature-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .tools-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .tool-box {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 1.8rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2eee8;
            transition: box-shadow 0.3s ease;
        }
        .tool-box:hover {
            box-shadow: 0 8px 35px rgba(0, 0, 0, 0.07);
        }
        .tool-box h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 1.2rem;
        }
        .tool-box h3 i {
            color: #1a6f5e;
            font-size: 1.3rem;
        }
        .tool-box form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .tool-box input,
        .tool-box textarea,
        .tool-box select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #cbdad4;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fafcfb;
            transition: border-color 0.2s;
        }
        .tool-box input:focus,
        .tool-box textarea:focus,
        .tool-box select:focus {
            outline: none;
            border-color: #1a6f5e;
            box-shadow: 0 0 0 3px rgba(26, 111, 94, 0.1);
        }
        .tool-box textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.8rem;
            background: #1a6f5e;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.1s;
        }
        .btn:hover {
            background: #0e4f42;
            transform: translateY(-1px);
            text-decoration: none;
            color: #fff;
        }
        .btn-secondary {
            background: #e2eee8;
            color: #0b2b36;
        }
        .btn-secondary:hover {
            background: #c8ddd4;
            color: #0b2b36;
        }
        .score-select {
            display: flex;
            gap: 0.8rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .score-select select {
            flex: 1;
            min-width: 80px;
        }
        .star-display {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #f9d56e;
            margin-bottom: 0.5rem;
        }
        .star-display i {
            cursor: pointer;
            transition: transform 0.15s;
        }
        .star-display i:hover {
            transform: scale(1.15);
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 0.6rem 1.5rem;
            margin: 1.5rem 0;
            padding: 1.2rem 1.8rem;
            background: #f0f7f4;
            border-radius: 12px;
            border-left: 4px solid #1a6f5e;
        }
        .link-list a {
            display: inline-block;
            padding: 0.2rem 0;
            font-weight: 500;
        }
        .link-list a i {
            margin-right: 0.4rem;
            font-size: 0.8rem;
            color: #1a6f5e;
        }
        .img-caption {
            font-size: 0.9rem;
            color: #5a7a6e;
            text-align: center;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .stat-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.2rem;
            margin: 2rem 0;
        }
        .stat-item {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem 1rem;
            text-align: center;
            border: 1px solid #dce8e2;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }
        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0b2b36;
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: #5a7a6e;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-weight: 500;
        }
        .tip-box {
            background: #e8f3ef;
            border-radius: 12px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
            border-left: 5px solid #1a6f5e;
        }
        .tip-box strong {
            color: #0b2b36;
        }
        .site-footer {
            background: #0b2b36;
            color: #cfe2db;
            padding: 2.5rem 0 1.5rem 0;
            margin-top: 2rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-inner h4 {
            color: #f9d56e;
            margin-top: 0;
            font-size: 1.1rem;
            margin-bottom: 1rem;
            border-bottom: none;
        }
        .footer-inner a {
            color: #b3d1c6;
        }
        .footer-inner a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1.2rem 1.5rem 0 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.9rem;
            color: #9ab8ae;
        }
        friend-link {
            display: block;
            margin-top: 0.6rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.3rem;
            color: #b3d1c6;
        }
        friend-link a:hover {
            color: #fff;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #6a8a7e;
            margin-top: 0.5rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated i {
            color: #1a6f5e;
        }
        @media (max-width: 992px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .hero-text {
                order: 1;
            }
            .hero-image {
                order: 2;
            }
            .tools-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
            }
            .main-nav.open {
                display: flex;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .container,
            .section-inner,
            .header-inner,
            .breadcrumb-inner,
            .footer-inner,
            .footer-bottom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .link-list {
                grid-template-columns: 1fr 1fr;
                padding: 1rem;
            }
            .hero {
                padding: 1.5rem 0 1rem 0;
            }
        }
        @media (max-width: 480px) {
            .link-list {
                grid-template-columns: 1fr;
            }
            .stat-row {
                grid-template-columns: 1fr 1fr;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo span {
                font-size: 0.8rem;
            }
            .header-inner {
                padding: 0 0.8rem;
            }
        }
        .main-nav {
            transition: all 0.3s ease;
        }
        .author-bio {
            background: #eef5f2;
            border-radius: 12px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            display: flex;
            gap: 1.5rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .author-bio .avatar {
            font-size: 3.5rem;
            color: #1a6f5e;
        }
        .author-bio .info strong {
            display: block;
            font-size: 1.1rem;
        }
        .author-bio .info p {
            margin-bottom: 0;
            font-size: 0.95rem;
        }