*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1a1a2e;
            background: #f8f9fc;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0b0b1a;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }
        .site-header {
            background: linear-gradient(135deg, #0b0b1a 0%, #1a1a3e 100%);
            color: #fff;
            padding: 0.75rem 0;
            border-bottom: 3px solid #d32f2f;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #ff6f00, #d32f2f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 12px rgba(211, 47, 47, 0.3);
            transition: transform 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #ff6f00;
            font-size: 1.6rem;
        }
        .my-logo span {
            font-weight: 300;
            -webkit-text-fill-color: #fff;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0e0e0;
            padding: 0.4rem 0.9rem;
            border-radius: 6px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(211, 47, 47, 0.2);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.35rem;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap {
            background: #e8eaf6;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d0d3e0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
        }
        .breadcrumb a {
            color: #444;
        }
        .breadcrumb .current {
            color: #d32f2f;
            font-weight: 600;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-section {
            background: #fff;
            border-radius: 16px;
            padding: 2.2rem 2.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
        }
        .content-section h1 {
            font-size: 2.4rem;
            margin-bottom: 0.5rem;
            color: #0b0b1a;
        }
        .content-section h1 i {
            color: #d32f2f;
            margin-right: 0.5rem;
        }
        .content-section h2 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem 0;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid #e0e0e0;
        }
        .content-section h2:first-of-type {
            margin-top: 0.5rem;
        }
        .content-section h3 {
            font-size: 1.35rem;
            margin: 1.6rem 0 0.8rem 0;
            color: #1a1a3e;
        }
        .content-section h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.5rem 0;
            color: #333;
            font-weight: 600;
        }
        .content-section p {
            margin-bottom: 1.1rem;
            color: #2d2d44;
        }
        .content-section ul,
        .content-section ol {
            margin-bottom: 1.2rem;
        }
        .content-section li {
            margin-bottom: 0.4rem;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #777;
            border-top: 1px solid #eee;
            padding-top: 1.2rem;
            margin-top: 2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .last-updated i {
            color: #d32f2f;
        }
        .featured-image-wrap {
            margin: 1.8rem 0 2rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image-wrap figcaption {
            background: #f5f5f5;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #555;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fce4ec, #f8f0e6);
            border-left: 4px solid #d32f2f;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            max-width: 560px;
            margin: 1.2rem 0 1.8rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 2px solid #d0d3e0;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: border 0.2s, box-shadow 0.2s;
            outline: none;
        }
        .search-form input:focus {
            border-color: #d32f2f;
            box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.15);
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            background: #d32f2f;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #b71c1c;
            transform: translateY(-1px);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2rem 0 1rem;
        }
        .feedback-card {
            background: #fafafa;
            border-radius: 12px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #e8e8e8;
            transition: box-shadow 0.2s;
        }
        .feedback-card:hover {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.65rem 0.9rem;
            border: 1.5px solid #d0d3e0;
            border-radius: 6px;
            font-size: 0.92rem;
            font-family: inherit;
            transition: border 0.2s;
            outline: none;
            width: 100%;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #d32f2f;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            padding: 0.6rem 1.4rem;
            background: #1a1a3e;
            color: #fff;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #d32f2f;
            transform: translateY(-1px);
        }
        .star-select {
            display: flex;
            gap: 0.25rem;
            font-size: 1.5rem;
            color: #f5a623;
            cursor: pointer;
        }
        .star-select i {
            transition: transform 0.15s, color 0.15s;
        }
        .star-select i:hover {
            transform: scale(1.2);
            color: #ff8f00;
        }
        .friend-links-area {
            background: #fff;
            border-radius: 12px;
            padding: 1.6rem 2rem;
            margin-top: 1.5rem;
            border: 1px solid #e8e8e8;
        }
        friend-link {
            display: block;
            font-style: normal;
        }
        friend-link h3 {
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            list-style: none;
            padding: 0;
        }
        .friend-link-list li a {
            font-size: 0.92rem;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            transition: background 0.2s;
        }
        .friend-link-list li a:hover {
            background: #f0f0f0;
            text-decoration: none;
        }
        .site-footer {
            background: #0b0b1a;
            color: #bbb;
            padding: 1.8rem 0 1.2rem;
            margin-top: 1.5rem;
            border-top: 3px solid #d32f2f;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .footer-inner .copyright {
            font-size: 0.85rem;
            color: #999;
        }
        .footer-inner .copyright strong {
            color: #ddd;
        }
        .footer-inner .copyright i {
            color: #d32f2f;
        }
        @media (max-width: 820px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .content-section {
                padding: 1.5rem 1.2rem;
            }
            .content-section h1 {
                font-size: 1.8rem;
            }
            .content-section h2 {
                font-size: 1.4rem;
            }
            .header-inner {
                gap: 0.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo span {
                font-size: 0.75rem;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 0.6rem 0 0.2rem;
                gap: 0.15rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0.8rem;
                border-radius: 4px;
                white-space: normal;
            }
            .search-form {
                max-width: 100%;
            }
            .friend-link-list {
                flex-direction: column;
                gap: 0.3rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            .content-section {
                padding: 1.2rem 0.9rem;
                border-radius: 10px;
            }
            .content-section h1 {
                font-size: 1.5rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .star-select {
                font-size: 1.3rem;
            }
        }
        .schema-hidden {
            display: none;
        }
        .text-muted {
            color: #777;
            font-size: 0.9rem;
        }
        .inline-icon {
            margin-right: 0.3rem;
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid #d32f2f;
            color: #d32f2f;
            padding: 0.4rem 1rem;
            border-radius: 6px;
            font-weight: 600;
            transition: background 0.2s, color 0.2s;
            cursor: pointer;
            font-size: 0.85rem;
        }
        .btn-outline:hover {
            background: #d32f2f;
            color: #fff;
        }