*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3a5c;
            --primary-light: #2c5a8c;
            --accent: #e8b830;
            --accent-dark: #c9a026;
            --bg: #f7f5f0;
            --card-bg: #ffffff;
            --text: #1f2937;
            --text-light: #4b5563;
            --border: #d1d5db;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1120px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1.05rem;
            padding-bottom: 2rem;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        header {
            background: var(--primary);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity .2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--accent);
            margin-right: 0.3rem;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.15rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #e0e7ef;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background .2s, color .2s;
            white-space: nowrap;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background .2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0.6rem 0;
            font-size: 0.88rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.25rem 0.5rem;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #9ca3af;
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb .active {
            color: var(--text-light);
            font-weight: 500;
        }
        main {
            padding: 2rem 0;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        article h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem 1.5rem;
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid var(--border);
            padding-bottom: 1rem;
        }
        .meta i {
            margin-right: 0.35rem;
            color: var(--accent);
        }
        .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .content-article h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2.2rem 0 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }
        .content-article h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-light);
            margin: 1.6rem 0 0.6rem;
        }
        .content-article h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.2rem 0 0.4rem;
        }
        .content-article p {
            margin-bottom: 1.1rem;
        }
        .content-article ul,
        .content-article ol {
            margin: 0.6rem 0 1.2rem 1.6rem;
        }
        .content-article li {
            margin-bottom: 0.4rem;
        }
        .content-article strong {
            color: var(--primary);
            font-weight: 700;
        }
        .content-article .highlight-box {
            background: #f0f4fa;
            border-left: 5px solid var(--accent);
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .content-article .highlight-box i {
            color: var(--accent);
            margin-right: 0.5rem;
        }
        .content-article .emoji-big {
            font-size: 1.3rem;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            font-size: 0.88rem;
            color: var(--text-light);
            text-align: center;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .search-section {
            background: var(--card-bg);
            padding: 1.8rem 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        .search-section h3 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            color: var(--primary);
        }
        .search-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border .2s;
        }
        .search-form input[type="text"]:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: var(--card-bg);
            padding: 1.6rem 1.8rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card textarea,
        .feedback-card input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border .2s;
            resize: vertical;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: var(--primary-light);
        }
        .feedback-card textarea {
            min-height: 90px;
            margin-bottom: 0.8rem;
        }
        .feedback-card .field-group {
            margin-bottom: 0.8rem;
        }
        .feedback-card .star-rating {
            display: flex;
            gap: 0.25rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .feedback-card .star-rating i {
            transition: color .2s, transform .1s;
        }
        .feedback-card .star-rating i:hover,
        .feedback-card .star-rating i:hover~i {
            color: var(--accent);
            transform: scale(1.1);
        }
        .feedback-card .star-rating i.active {
            color: var(--accent);
        }
        .feedback-card button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.65rem 1.6rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .feedback-card .note {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.5rem;
        }
        friend-link {
            display: block;
            background: var(--card-bg);
            padding: 1.6rem 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2rem 0 1rem;
        }
        friend-link h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
            list-style: none;
        }
        friend-link .link-list li a {
            font-size: 0.95rem;
            color: var(--primary-light);
            font-weight: 500;
        }
        friend-link .link-list li a:hover {
            color: var(--accent-dark);
        }
        footer {
            background: var(--primary);
            color: #d1dbe8;
            padding: 1.6rem 0;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.92rem;
        }
        footer .copyright {
            color: #aab9ce;
        }
        footer a {
            color: var(--accent);
        }
        footer a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary);
                padding: 0.75rem 0 1rem;
                border-radius: 0 0 16px 16px;
                gap: 0.1rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.5rem 1rem;
                display: block;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            article h1 {
                font-size: 1.8rem;
            }
            .content-article h2 {
                font-size: 1.4rem;
            }
            .content-article h3 {
                font-size: 1.15rem;
            }
            .search-section {
                padding: 1.2rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            friend-link {
                padding: 1.2rem;
            }
            .meta {
                font-size: 0.85rem;
                gap: 0.4rem 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            article h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .search-form input[type="text"] {
                min-width: 120px;
                font-size: 0.9rem;
            }
            .search-form button {
                font-size: 0.9rem;
                padding: 0.6rem 1.2rem;
            }
            .feedback-card .star-rating {
                font-size: 1.4rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .section-divider {
            border: none;
            height: 2px;
            background: linear-gradient(to right, transparent, var(--accent), transparent);
            margin: 2rem 0;
        }