*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f6f2;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #046a7a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #023b44;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 0.5rem;
        }
        h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #0b2d36;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #0f3a45;
            border-left: 6px solid #f4a261;
            padding-left: 1rem;
            margin: 2.5rem 0 1.25rem 0;
            line-height: 1.3;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #144f5c;
            margin: 2rem 0 0.75rem 0;
            line-height: 1.4;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1a6575;
            margin: 1.5rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.0625rem;
            color: #2c3e46;
        }
        .text-muted {
            color: #5f7a84;
            font-size: 0.95rem;
        }
        .small {
            font-size: 0.9rem;
        }
        strong,
        b {
            color: #0b2d36;
            font-weight: 700;
        }
        em {
            font-style: italic;
            color: #1f5b6b;
        }
        .btn {
            display: inline-block;
            background: #046a7a;
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            box-shadow: 0 4px 12px rgba(4, 106, 122, 0.25);
        }
        .btn:hover {
            background: #023b44;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-secondary {
            background: #e8c9a0;
            color: #1e2a2f;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .btn-secondary:hover {
            background: #dbb88a;
            color: #1e2a2f;
        }
        .badge {
            display: inline-block;
            background: #f4a261;
            color: #1e2a2f;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            letter-spacing: 0.03em;
        }
        .site-header {
            background: #ffffff;
            border-radius: 0 0 24px 24px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(4px);
            background: rgba(255, 255, 255, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #0b2d36;
            letter-spacing: -0.04em;
            line-height: 1;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #f4a261;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #046a7a;
        }
        .my-logo span {
            font-weight: 300;
            color: #5f7a84;
            font-size: 1rem;
            letter-spacing: 0.05em;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-list a {
            font-weight: 500;
            color: #1e2a2f;
            padding: 0.3rem 0.6rem;
            border-radius: 20px;
            transition: background 0.2s;
        }
        .nav-list a:hover {
            background: #eef3f5;
            text-decoration: none;
            color: #046a7a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 2rem;
            color: #0b2d36;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0.6rem 0 0.2rem 0;
            font-size: 0.9rem;
            color: #5f7a84;
            list-style: none;
            background: transparent;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #b0c4cc;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #046a7a;
        }
        .hero {
            background: linear-gradient(135deg, #e6f0f3 0%, #d4e4ea 100%);
            border-radius: 28px;
            padding: 2.5rem 2rem;
            margin: 1.5rem 0 2rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: space-between;
        }
        .hero-text {
            flex: 1 1 300px;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
        }
        .hero-text p {
            font-size: 1.2rem;
            max-width: 600px;
        }
        .hero-img-wrap {
            flex: 0 0 260px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        }
        .search-section {
            background: #ffffff;
            border-radius: 24px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .search-form input[type="text"] {
            flex: 1 1 240px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce7ec;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            background: #f9fbfc;
        }
        .search-form input[type="text"]:focus {
            border-color: #046a7a;
        }
        .search-form button {
            background: #046a7a;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form button:hover {
            background: #023b44;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            margin-bottom: 1.5rem;
        }
        .sidebar-card h4 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid #eef3f5;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f4f6;
        }
        .sidebar-card li a {
            font-weight: 500;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .feedback-card h3 {
            margin-top: 0;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 2px solid #dce7ec;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            background: #f9fbfc;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #046a7a;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #e0c9a6;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f4a261;
        }
        .site-footer {
            background: #0b2d36;
            color: #d4e4ea;
            border-radius: 28px 28px 0 0;
            padding: 2.5rem 2rem 1.2rem;
            margin: 3rem -1rem 0 -1rem;
        }
        .site-footer a {
            color: #f4cba6;
        }
        .site-footer a:hover {
            color: #ffd9b3;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            max-width: 1240px;
            margin: 0 auto;
        }
        .footer-grid h4 {
            color: #f4a261;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid li {
            padding: 0.25rem 0;
        }
        .footer-bottom {
            border-top: 1px solid #1f4f5c;
            margin-top: 2rem;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.9rem;
            color: #9bb7c2;
        }
        friend-link {
            display: block;
            padding: 0.5rem 0;
            font-weight: 500;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
        }
        @media (max-width: 820px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                position: static;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .hero {
                flex-direction: column;
                text-align: center;
                padding: 1.8rem 1.2rem;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-img-wrap {
                flex: 0 0 auto;
                max-width: 240px;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #ffffff;
                padding: 1rem 0;
                border-radius: 16px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
                gap: 0.4rem;
            }
            #nav-toggle:checked+.hamburger+.nav-list,
            .nav-list.show {
                display: flex;
            }
            .nav-list a {
                padding: 0.6rem 1.2rem;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            body {
                padding: 0 0.6rem;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .search-form input[type="text"] {
                flex: 1 1 100%;
            }
            .site-footer {
                padding: 2rem 1rem 1rem;
                margin-left: -0.6rem;
                margin-right: -0.6rem;
            }
        }
        .updated-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #eef3f5;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #144f5c;
            margin-bottom: 1.5rem;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, #d4e4ea, transparent);
            margin: 2rem 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .inline-icon {
            margin-right: 0.4rem;
            color: #f4a261;
        }
        .tip-box {
            background: #eef7f9;
            border-left: 6px solid #046a7a;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            margin: 1.5rem 0;
        }
        .tip-box strong {
            color: #046a7a;
        }
        .highlight {
            background: #fcf2e6;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eef3f5;
        }
        th {
            background: #0b2d36;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }