*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.7;
            color: #1c2a3a;
            background: #f4f7fc;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        .site-header {
            background: #173b45;
            background: linear-gradient(135deg, #0f2830 0%, #1d4a56 100%);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
        }
        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #fff !important;
            text-decoration: none;
            text-shadow: 0 2px 8px rgba(0, 0, 0, .2);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: #f4c542;
            font-size: 2rem;
        }
        .logo-sub {
            display: flex;
            flex-direction: column;
            line-height: 1;
        }
        .logo-sub small {
            font-size: .65rem;
            color: rgba(255, 255, 255, .75);
            font-weight: 400;
            letter-spacing: 1px;
        }
        .nav-bar {
            background: #0d2b33;
            border-bottom: 2px solid #f4c542;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 44px;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            color: rgba(255, 255, 255, .9);
            text-decoration: none;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: .85rem;
            font-weight: 600;
            display: block;
            transition: all .2s;
        }
        .nav-links li a:hover {
            background: #f4c542;
            color: #0f2830;
        }
        .nav-links li.active a {
            background: rgba(244, 197, 66, .25);
            color: #f4c542;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.6rem;
            color: #fff;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, .1);
        }
        .header-search {
            display: flex;
            align-items: center;
            margin-left: auto;
        }
        .header-search form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .12);
            border-radius: 30px;
            padding: 2px 6px 2px 12px;
            transition: background .2s;
        }
        .header-search form:hover {
            background: rgba(255, 255, 255, .18);
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            width: 150px;
            font-size: .82rem;
            padding: 5px 0;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, .65);
        }
        .header-search button {
            background: none;
            border: none;
            color: #f4c542;
            font-size: .9rem;
            cursor: pointer;
            padding: 6px 8px;
            transition: .2s;
        }
        .header-search button:hover {
            transform: scale(1.15);
        }
        .breadcrumb {
            background: #fff;
            border-bottom: 1px solid #e5e8eb;
            font-size: .78rem;
            padding: 6px 0;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        .breadcrumb li+li:before {
            content: "›";
            margin: 0 8px;
            color: #8a99a6;
        }
        .breadcrumb a {
            color: #146b7a;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #546e7a;
        }
        .site-main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            margin: 24px auto;
            padding: 0 16px;
            max-width: 1200px;
        }
        .main-content {
            background: #fff;
            border-radius: 12px;
            padding: 28px 32px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, .05);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .widget {
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .05);
        }
        .widget h3 {
            border-left: 4px solid #f4c542;
            padding-left: 12px;
            margin-bottom: 14px;
            font-size: 1.05rem;
        }
        .widget-link-list {
            list-style: none;
        }
        .widget-link-list li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f2f4;
        }
        .widget-link-list li a {
            color: #146b7a;
            text-decoration: none;
            font-size: .85rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .widget-link-list li a:hover {
            color: #0f3e46;
            text-decoration: underline;
        }
        h1 {
            font-size: 2.1rem;
            color: #0f2830;
            margin-bottom: 4px;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        .meta-info {
            font-size: .8rem;
            color: #71858f;
            padding-bottom: 18px;
            border-bottom: 1px solid #eef0f2;
            margin-bottom: 20px;
        }
        h2 {
            font-size: 1.5rem;
            margin: 35px 0 12px;
            color: #0f2830;
            padding-bottom: 6px;
            border-bottom: 2px solid #f4f0e0;
            font-weight: 800;
        }
        h3 {
            font-size: 1.2rem;
            margin: 24px 0 8px;
            color: #1d4a56;
            font-weight: 700;
        }
        h4 {
            font-size: 1rem;
            margin: 16px 0 6px;
            color: #2f5e6b;
            font-weight: 700;
        }
        p {
            margin-bottom: 14px;
            font-size: .95rem;
        }
        ul,
        ol {
            margin: 10px 0 16px 24px;
            font-size: .95rem;
        }
        li {
            margin-bottom: 4px;
        }
        blockquote {
            border-left: 4px solid #f4c542;
            background: #faf6ed;
            padding: 14px 20px;
            border-radius: 0 8px 8px 0;
            margin: 18px 0;
            font-style: italic;
            color: #3d4c54;
        }
        .insight-box {
            background: #ecf5f7;
            border-radius: 10px;
            padding: 18px 22px;
            margin: 24px 0;
            border: 1px solid #cde3e8;
        }
        .insight-box .title-i {
            font-weight: 700;
            color: #0f5e6e;
            margin-bottom: 6px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 14px;
            margin: 20px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #ffffff, #f1f4fb);
            border-radius: 10px;
            padding: 18px;
            text-align: center;
            box-shadow: 0 3px 12px rgba(0, 0, 0, .04);
            border: 1px solid #e8edf2;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #0f2830;
        }
        .stat-card .label {
            font-size: .8rem;
            color: #65808c;
        }
        .step-num {
            display: inline-block;
            background: #f4c542;
            color: #0f2830;
            font-weight: 700;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            text-align: center;
            line-height: 32px;
            margin-right: 8px;
        }
        .alt-img {
            display: block;
            max-width: 100%;
            border-radius: 10px;
            margin: 20px auto;
            box-shadow: 0 4px 18px rgba(0, 0, 0, .06);
        }
        .faq-item {
            background: #fbfcfe;
            border: 1px solid #e2e9ec;
            border-radius: 10px;
            padding: 16px 18px;
            margin: 12px 0;
        }
        .faq-item summary {
            font-weight: 600;
            cursor: pointer;
            font-size: .93rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: .88rem;
        }
        th {
            background: #f4c542;
            color: #0f2830;
            padding: 10px 8px;
            font-weight: 700;
            text-align: left;
        }
        td {
            padding: 8px 10px;
            border-bottom: 1px solid #e9edef;
        }
        .cta {
            background: #0f3e46;
            color: #fff;
            text-align: center;
            padding: 20px;
            border-radius: 12px;
            margin: 30px 0;
        }
        .cta a {
            color: #f4c542;
            font-weight: 600;
            text-decoration: none;
        }
        .feedback-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            margin-top: 32px;
        }
        .feedback-card {
            background: #fafbfc;
            border: 1px solid #e4e8ec;
            border-radius: 10px;
            padding: 18px;
        }
        .feedback-card h3 {
            margin-top: 0;
        }
        .feedback-card input,
        .feedback-card textarea {
            width: 100%;
            border: 1px solid #cfd6da;
            border-radius: 6px;
            padding: 8px;
            margin: 6px 0;
            font-family: inherit;
            font-size: .85rem;
        }
        .feedback-card button {
            background: #0f2830;
            color: #fff;
            border: none;
            padding: 9px 18px;
            border-radius: 20px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s;
            font-size: .85rem;
        }
        .feedback-card button:hover {
            background: #f4c542;
            color: #0f2830;
        }
        .star-rating {
            font-size: 1.5rem;
            color: #f4c542;
            margin-bottom: 8px;
        }
        .site-footer {
            background: #0d242a;
            color: #acc7ce;
            padding: 30px 16px 12px;
            margin-top: 30px;
        }
        .footer-flex {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-about {
            max-width: 400px;
            font-size: .82rem;
        }
        friend-link {
            display: block;
            font-size: .8rem;
            padding: 20px 0;
            background: #0b1f24;
            color: #8fb2b9;
            text-align: center;
        }
        friend-link a {
            color: #d3e3e7;
            padding: 4px 12px;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            font-size: .78rem;
            padding: 15px 0 5px;
            border-top: 1px solid #1d3d46;
            color: rgba(178, 205, 214, .7);
        }
        @media (max-width: 920px) {
            .site-main {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
            .hamburger {
                display: block;
                margin-left: auto;
            }
            .nav-links {
                flex-direction: column;
                background: #0d2b33;
                position: absolute;
                top: 88px;
                left: 0;
                right: 0;
                display: none;
                padding: 8px 0 16px;
                z-index: 999;
                border-bottom: 3px solid #f4c542;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 10px 24px;
            }
            .header-search {
                flex-basis: 100%;
                display: flex;
                justify-content: center;
                margin-top: 6px;
            }
            .header-search form {
                width: 100%;
                max-width: 300px;
                margin: 0 auto;
            }
            .header-flex {
                gap: 8px;
            }
            .site-header {
                padding: 8px 0;
            }
        }
        @media (max-width: 600px) {
            .main-content {
                padding: 18px 14px;
            }
            h1 {
                font-size: 1.55rem;
            }
            .feedback-block {
                grid-template-columns: 1fr;
            }
        }