*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f6f9fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0d6e6e;
            text-decoration: none;
            transition: color .25s, border-color .25s;
        }
        a:hover,
        a:focus-visible {
            color: #094c4c;
            border-bottom: 2px solid #0d6e6e;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            color: #0b2b36;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            border-left: 6px solid #0d6e6e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 2rem;
            margin-bottom: 0.5rem;
            color: #144a5e;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
            color: #1d5f6e;
        }
        p {
            margin-bottom: 1.1rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.6rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        hr {
            border: none;
            border-top: 2px dashed #cbdde8;
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            padding: 0 1.5rem 2rem;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.04);
            border-radius: 0 0 24px 24px;
        }
        header {
            padding: 1.2rem 0 0.6rem;
            border-bottom: 2px solid #e2edf2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #0b2b36;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #0d6e6e, #1a9e8f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            border: none !important;
        }
        .my-logo:hover {
            opacity: 0.8;
            border: none !important;
        }
        .my-logo small {
            font-size: 0.65rem;
            font-weight: 400;
            -webkit-text-fill-color: #5a7a8a;
            color: #5a7a8a;
            display: block;
            letter-spacing: 0.04em;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        nav a {
            padding: 0.45rem 0.9rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.92rem;
            color: #1a4a5a;
            border: 1px solid transparent;
            transition: all .2s;
        }
        nav a:hover {
            background: #e2edf2;
            border-color: #b6d2de;
            border-bottom: 1px solid #b6d2de;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #0b2b36;
            border-radius: 8px;
            font-size: 1.5rem;
            padding: 0.2rem 0.7rem;
            cursor: pointer;
            color: #0b2b36;
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: #e2edf2;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.8rem;
            font-size: 0.85rem;
            padding: 0.7rem 0 0.3rem;
            color: #5a7a8a;
            width: 100%;
            margin-top: 0.3rem;
        }
        .breadcrumb a {
            color: #0d6e6e;
            border: none;
        }
        .breadcrumb a:hover {
            border-bottom: 1px solid #0d6e6e;
        }
        .breadcrumb span {
            color: #1a4a5a;
        }
        .hero-figure {
            margin: 1.8rem 0 1.2rem;
            border-radius: 18px;
            overflow: hidden;
            background: #dce8ef;
            position: relative;
        }
        .hero-figure img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .hero-caption {
            font-size: 0.85rem;
            color: #3a5a6a;
            padding: 0.5rem 1rem 0.8rem;
            background: #eef4f8;
            border-radius: 0 0 18px 18px;
        }
        .search-box {
            background: #eef4f8;
            padding: 1.2rem 1.5rem;
            border-radius: 20px;
            margin: 1.8rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            align-items: center;
        }
        .search-box label {
            font-weight: 700;
            color: #0b2b36;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-box input {
            flex: 1 1 220px;
            padding: 0.6rem 1rem;
            border: 2px solid #cbdde8;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border .2s;
            min-width: 140px;
        }
        .search-box input:focus {
            border-color: #0d6e6e;
        }
        .search-box button {
            background: #0d6e6e;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #094c4c;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: #f4f9fc;
            border-radius: 20px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #dde9f0;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card textarea,
        .feedback-card input {
            width: 100%;
            padding: 0.6rem 0.9rem;
            border: 2px solid #cbdde8;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: border .2s;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #0d6e6e;
        }
        .feedback-card .row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
            margin-top: 0.6rem;
        }
        .feedback-card button {
            background: #0d6e6e;
            color: #fff;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 40px;
            font-weight: 700;
            cursor: pointer;
            transition: background .2s;
        }
        .feedback-card button:hover {
            background: #094c4c;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ccdde8;
            cursor: pointer;
        }
        .star-rating .fas.fa-star {
            color: #f5b342;
        }
        .star-rating .far.fa-star {
            color: #ccdde8;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #5a7a8a;
            text-align: right;
            border-top: 1px solid #e2edf2;
            padding-top: 0.8rem;
            margin-top: 1.2rem;
        }
        friend-link {
            display: block;
            background: #f0f6fa;
            border-radius: 20px;
            padding: 1.5rem 2rem;
            margin: 2.5rem 0 1.2rem;
            border: 1px solid #dde9f0;
        }
        friend-link .fl-head {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0b2b36;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        friend-link .fl-list a {
            border: none;
            font-size: 0.92rem;
        }
        friend-link .fl-list a:hover {
            border-bottom: 1px solid #0d6e6e;
        }
        footer {
            padding: 1.8rem 0 1.2rem;
            border-top: 2px solid #e2edf2;
            margin-top: 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            color: #4a6a7a;
        }
        footer .copyright {
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        @media (max-width: 820px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 0.8rem 1.5rem;
            }
            nav a {
                font-size: 0.82rem;
                padding: 0.3rem 0.6rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 640px) {
            header {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: inline-block;
            }
            nav {
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease, padding 0.25s;
                padding: 0;
                gap: 0.1rem;
            }
            nav.open {
                max-height: 480px;
                padding: 0.8rem 0 0.4rem;
            }
            nav a {
                width: 100%;
                padding: 0.5rem 0.8rem;
                border-radius: 10px;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 0.2rem 0.5rem;
            }
            .search-box {
                flex-direction: column;
                align-items: stretch;
            }
            .search-box button {
                justify-content: center;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
                padding-left: 0.6rem;
                border-left-width: 4px;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        @media (min-width: 641px) {
            nav {
                max-height: none !important;
                overflow: visible;
            }
            .nav-toggle {
                display: none !important;
            }
        }
        .emoji-lg {
            font-size: 1.3em;
        }
        .highlight {
            background: #f5f9b0;
            padding: 0.1rem 0.3rem;
            border-radius: 6px;
        }
        .stat-badge {
            display: inline-block;
            background: #0d6e6e;
            color: #fff;
            border-radius: 40px;
            padding: 0.15rem 1rem;
            font-size: 0.8rem;
            font-weight: 700;
            margin-right: 0.4rem;
        }
        .card-tip {
            background: #f8feff;
            border-left: 5px solid #0d6e6e;
            padding: 0.8rem 1.2rem;
            border-radius: 0 14px 14px 0;
            margin: 1.2rem 0;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.2rem;
            margin: 1.2rem 0;
        }
        @media (max-width: 640px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        th,
        td {
            padding: 0.6rem 0.9rem;
            border-bottom: 1px solid #dde9f0;
            text-align: left;
        }
        th {
            background: #e2edf2;
            font-weight: 700;
            color: #0b2b36;
        }
        tr:hover td {
            background: #f4f9fc;
        }
        .schema-hidden {
            display: none;
        }