/* 文档中心列表页样式 */
        /* ===== 文档中心 ===== */
        .doc-main {
            background: #f4f6fb;
        }

        /* 首屏：浅色底 + 玻璃质感 */
        .doc-hero {
            position: relative;
            margin-top: 80px;
            padding: 58px 0 60px;
            overflow: hidden;
            background:
                radial-gradient(ellipse 70% 90% at 10% 8%, rgba(30, 84, 236, .10) 0%, rgba(30, 84, 236, 0) 62%),
                radial-gradient(ellipse 62% 80% at 90% 0%, rgba(47, 108, 255, .12) 0%, rgba(47, 108, 255, 0) 64%),
                linear-gradient(180deg, #ffffff 0%, #f4f7ff 100%);
        }

        .doc-hero-wave {
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 200px;
            pointer-events: none;
        }

        .doc-hero-deco {
            position: absolute;
            pointer-events: none;
            opacity: .75;
        }

        .doc-hero-deco span {
            position: absolute;
            display: block;
            border: 1px solid rgba(255, 255, 255, .95);
            border-radius: 18px;
            background: linear-gradient(150deg, rgba(255, 255, 255, .92) 0%, rgba(222, 232, 255, .42) 100%);
            box-shadow: 0 18px 48px rgba(30, 70, 180, .10);
            -webkit-backdrop-filter: blur(6px);
            backdrop-filter: blur(6px);
        }

        .doc-hero-deco-left {
            left: -60px;
            bottom: -40px;
            width: 520px;
            height: 520px;
            transform: rotate(-18deg);
        }

        .doc-hero-deco-left span:nth-child(1) {
            width: 300px;
            height: 400px;
            left: 40px;
            top: 80px;
            transform: rotate(-8deg);
        }

        .doc-hero-deco-left span:nth-child(2) {
            width: 300px;
            height: 400px;
            left: 150px;
            top: 40px;
            transform: rotate(8deg);
        }

        .doc-hero-deco-left span:nth-child(3) {
            width: 260px;
            height: 340px;
            left: 90px;
            top: 150px;
            transform: rotate(22deg);
        }

        .doc-hero-deco-right {
            right: -80px;
            top: -60px;
            width: 560px;
            height: 560px;
            transform: rotate(16deg);
        }

        .doc-hero-deco-right span:nth-child(1) {
            width: 320px;
            height: 430px;
            right: 40px;
            top: 60px;
            transform: rotate(10deg);
        }

        .doc-hero-deco-right span:nth-child(2) {
            width: 320px;
            height: 430px;
            right: 160px;
            top: 110px;
            transform: rotate(-6deg);
        }

        .doc-hero-deco-right span:nth-child(3) {
            width: 250px;
            height: 330px;
            right: 90px;
            top: 190px;
            transform: rotate(-24deg);
        }

        .doc-hero-inner {
            position: relative;
            z-index: 2;
            width: 1400px;
            max-width: calc(100% - 48px);
            margin: 0 auto;
            text-align: center;
        }

        .doc-hero-title {
            font-size: 34px;
            line-height: 1.4;
            font-weight: 600;
            letter-spacing: 1px;
            color: #0f2135;
        }

        .doc-hero-desc {
            max-width: 920px;
            margin: 20px auto 0;
            font-size: 16px;
            line-height: 28px;
            color: #3d3d3d;
            opacity: .9;
        }

        /* 栏目切换：玻璃胶囊 */
        .doc-tabs {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 6px;
            width: fit-content;
            max-width: calc(100% - 48px);
            margin: 34px auto 0;
            padding: 8px;
            border: 1px solid rgba(255, 255, 255, .95);
            border-radius: 999px;
            background: rgba(255, 255, 255, .55);
            box-shadow: 0 14px 36px rgba(24, 54, 140, .12), inset 0 1px 0 rgba(255, 255, 255, .95);
            -webkit-backdrop-filter: blur(16px) saturate(165%);
            backdrop-filter: blur(16px) saturate(165%);
            overflow-x: auto;
            scrollbar-width: none;
        }

        .doc-tabs::-webkit-scrollbar {
            display: none;
        }

        .doc-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 30px;
            border-radius: 999px;
            font-size: 16px;
            color: #35415a;
            white-space: nowrap;
            transition: all .25s ease;
        }

        .doc-tab:hover {
            color: #1e54ec;
            background: rgba(30, 84, 236, .08);
        }

        .doc-tab.active,
        .doc-tab.active:hover {
            background: linear-gradient(180deg, #3d78ff 0%, #1e54ec 100%);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 8px 18px rgba(30, 84, 236, .28);
        }

        /* 内容区 */
        .doc-content {
            padding: 64px 0 100px;
        }

        .doc-container {
            width: 1400px;
            max-width: calc(100% - 48px);
            margin: 0 auto;
        }

        .doc-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 30px;
        }

        .doc-card {
            display: flex;
            flex-direction: column;
            overflow: hidden;
            border: 1px solid #ecf0f8;
            border-radius: 16px;
            background: #fff;
            box-shadow: 0 8px 24px rgba(23, 42, 90, .045);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .doc-card:hover {
            transform: translateY(-6px);
            border-color: #dbe4f6;
            box-shadow: 0 20px 46px rgba(23, 42, 90, .13);
        }

        .doc-cover {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            aspect-ratio: 450 / 356;
            overflow: hidden;
            background: linear-gradient(160deg, #f5f2ff 0%, #e9e5fa 100%);
        }

        .doc-cover img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .doc-cover-link {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 无封面时的文档示意图 */
        .doc-sheet {
            position: relative;
            width: 56%;
            max-width: 260px;
            min-width: 170px;
            aspect-ratio: 210 / 280;
            padding: 22px 20px;
            border-radius: 10px;
            background: #fff;
            box-shadow: 0 18px 40px rgba(52, 54, 130, .16), 0 2px 6px rgba(52, 54, 130, .08);
            transform: rotate(-3deg);
            box-sizing: border-box;
        }

        .doc-sheet::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 10px;
            background: linear-gradient(145deg, rgba(238, 236, 255, .6), rgba(255, 255, 255, 0));
            pointer-events: none;
        }

        .doc-sheet-logo {
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: #334;
            font-weight: 700;
        }

        .doc-sheet-logo i {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: conic-gradient(from 220deg, #1e54ec, #7ea3ff, #1e54ec);
            display: inline-block;
        }

        .doc-sheet-tag {
            position: relative;
            display: inline-block;
            margin-top: 26px;
            padding: 4px 10px;
            border: 1px solid #cfcbf7;
            border-radius: 4px;
            background: #f6f5ff;
            font-size: 12px;
            line-height: 1.2;
            color: #5b57b7;
        }

        .doc-sheet-title {
            position: relative;
            margin-top: 10px;
            font-size: 14px;
            line-height: 1.55;
            font-weight: 700;
            color: #262a56;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .doc-sheet-line {
            position: relative;
            margin-top: 14px;
            height: 4px;
            border-radius: 2px;
            background: linear-gradient(90deg, #d9d6fa, rgba(217, 214, 250, 0));
        }

        .doc-sheet-line.short {
            width: 62%;
            margin-top: 8px;
        }

        .doc-sheet::after {
            content: 'PDF';
            position: absolute;
            left: 20px;
            bottom: 18px;
            padding: 3px 9px;
            border: 1px solid #e5e1f8;
            border-radius: 4px;
            background: #faf9ff;
            font-size: 10px;
            line-height: 1.2;
            letter-spacing: 1px;
            color: #7d78b5;
        }

        .doc-body {
            display: flex;
            flex: 1;
            flex-direction: column;
            padding: 22px 28px 28px;
        }

        .doc-title {
            font-size: 18px;
            line-height: 1.55;
            font-weight: 600;
            color: #131a30;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 56px;
        }

        .doc-title a {
            color: inherit;
            transition: color .25s ease;
        }

        .doc-title a:hover {
            color: #1e54ec;
        }

        .doc-desc {
            margin-top: 10px;
            font-size: 14px;
            line-height: 1.75;
            color: #6b7280;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 49px;
        }

        .doc-foot {
            margin-top: auto;
            padding-top: 18px;
        }

        .doc-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 42px;
            padding: 0 24px;
            border-radius: 999px;
            background: #1e54ec;
            font-size: 14px;
            font-weight: 500;
            color: #fff !important;
            transition: all .25s ease;
        }

        .doc-btn svg {
            transition: transform .25s ease;
        }

        .doc-btn:hover {
            background: #1746d0;
            box-shadow: 0 8px 20px rgba(30, 84, 236, .28);
        }

        .doc-btn:hover svg {
            transform: translateX(3px);
        }

        /* 空状态 */
        .doc-empty {
            grid-column: 1 / -1;
            padding: 80px 20px;
            border: 1px dashed #d8e0f2;
            border-radius: 16px;
            background: #fff;
            text-align: center;
        }

        .doc-empty-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 92px;
            height: 92px;
            margin: 0 auto 22px;
            border-radius: 50%;
            background: #f2f5ff;
        }

        .doc-empty h3 {
            margin-bottom: 10px;
            font-size: 18px;
            font-weight: 600;
            color: #1f2b45;
        }

        .doc-empty p {
            font-size: 14px;
            line-height: 1.8;
            color: #8a93a8;
        }

        /* 分页 */
        .doc-pagination-box {
            margin-top: 54px;
        }

        .doc-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 0;
            list-style: none;
        }

        .doc-pagination li {
            list-style: none;
        }

        .doc-pagination li a,
        .doc-pagination li span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 12px;
            border: 1px solid #dfe6f5;
            border-radius: 10px;
            background: #fff;
            font-size: 14px;
            color: #55617c;
            transition: all .25s ease;
            box-sizing: border-box;
        }

        .doc-pagination li a:hover {
            border-color: #1e54ec;
            color: #1e54ec;
        }

        .doc-pagination li.active a,
        .doc-pagination li.active span,
        .doc-pagination .active a {
            border-color: #1e54ec;
            background: #1e54ec;
            color: #fff;
        }

        @media screen and (max-width: 1460px) {
            .doc-container {
                width: 1200px;
            }
        }

        @media screen and (max-width: 1240px) {
            .doc-container {
                width: 100%;
                padding: 0 24px;
                max-width: 100%;
                box-sizing: border-box;
            }

            .doc-grid {
                gap: 24px;
            }
        }

        @media screen and (max-width: 1024px) {
            .doc-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .doc-hero-title {
                font-size: 28px;
            }

            .doc-hero-desc {
                font-size: 15px;
            }

            .doc-tab {
                font-size: 15px;
                padding: 0 24px;
            }
        }

        @media screen and (max-width: 768px) {
            .doc-hero {
                margin-top: 50px;
                padding: 34px 0 40px;
            }

            .doc-hero-title {
                font-size: 24px;
            }

            .doc-hero-desc {
                margin-top: 14px;
                font-size: 14px;
                line-height: 1.7;
                padding: 0 6px;
            }

            .doc-hero-deco {
                display: none;
            }

            .doc-tabs {
                justify-content: flex-start;
                gap: 4px;
                max-width: calc(100% - 32px);
                margin-top: 24px;
                padding: 6px;
            }

            .doc-tab {
                height: 38px;
                padding: 0 20px;
                font-size: 14px;
            }

            .doc-content {
                padding: 36px 0 64px;
            }

            .doc-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .doc-body {
                padding: 18px 20px 22px;
            }

            .doc-title {
                font-size: 17px;
                min-height: auto;
            }

            .doc-desc {
                min-height: auto;
            }

            .doc-foot {
                padding-top: 16px;
            }

            .doc-pagination-box {
                margin-top: 36px;
            }

            .doc-pagination li a,
            .doc-pagination li span {
                min-width: 36px;
                height: 36px;
                border-radius: 8px;
            }
        }

        @media screen and (max-width: 480px) {
            .doc-sheet {
                width: 62%;
                padding: 16px 14px;
            }

            .doc-sheet-tag {
                margin-top: 18px;
            }

            .doc-sheet-title {
                font-size: 13px;
            }
        }