/* Links Page — Doodle Studio Style */
/* 公共样式（CSS变量/页面基础/header涂鸦化/动画/reveal/toast）已提取至 common.css */

    /* links 专属：modal 层叠 */
    body.page-links .modal { position: fixed; }

    /* links 专属动画 */
    @keyframes modal-pop {
        from { opacity: 0; transform: translateY(30px) scale(0.96) rotate(-1deg); }
        to { opacity: 1; transform: translateY(0) scale(1) rotate(0); }
    }

    /* ====== 通用工具类 ====== */
    .flex { display: flex; }
    .inline-flex { display: inline-flex; }
    .flex-col { flex-direction: column; }
    .items-center { align-items: center; }
    .justify-center { justify-content: center; }
    .justify-between { justify-content: space-between; }
    .gap-2 { gap: 8px; }
    .gap-3 { gap: 12px; }
    .gap-4 { gap: 16px; }
    .gap-5 { gap: 20px; }
    .flex-none { flex: none; }
    .flex-1 { flex: 1; }
    .flex-grow { flex-grow: 1; }
    .min-w-0 { min-width: 0; }
    .flex-wrap { flex-wrap: wrap; }
    .truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .hidden { display: none; }
    .block { display: block; }
    .text-center { text-align: center; }
    .relative { position: relative; }
    .absolute { position: absolute; }

    .text-ink { color: var(--ink); }
    .text-white { color: #fff; }
    .text-yellow { color: var(--yellow); }
    .text-pink { color: var(--pink); }
    .text-blue { color: var(--blue); }
    .text-green { color: var(--green); }
    .text-orange { color: var(--orange); }
    .text-gray-300 { color: #d1d5db; }
    .text-gray-400 { color: #9ca3af; }
    .text-gray-500 { color: #6b7280; }
    .text-gray-600 { color: #4b5563; }

    .bg-white { background: #fff; }
    .bg-yellow { background: var(--yellow); }
    .bg-pink { background: var(--pink); }
    .bg-blue { background: var(--blue); }
    .bg-green { background: var(--green); }
    .bg-orange { background: var(--orange); }
    .bg-ink { background: var(--ink); }

    .border-ink { border-color: var(--ink); }
    .shadow-hard { box-shadow: var(--shadow-hard); }
    .shadow-hard-sm { box-shadow: var(--shadow-hard-sm); }
    .shadow-hard-lg { box-shadow: var(--shadow-hard-lg); }

    .font-mono { font-family: var(--font-mono); }

    /* ====== HERO ====== */
    .hero {
        position: relative;
        padding: 144px 16px 80px;
        min-height: 88vh;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }
    .hero-blob {
        position: absolute;
        border: 4px solid var(--ink);
        opacity: 0.3;
    }
    .hero-blob.b1 { top: 96px; left: 32px; width: 112px; height: 112px; background: var(--yellow); border-radius: 50%; animation: bounce-slow 4s ease-in-out infinite; }
    .hero-blob.b2 { bottom: 64px; right: 32px; width: 144px; height: 144px; background: var(--pink); border-radius: 50%; opacity: 0.25; animation: float-anim 4s ease-in-out infinite; }
    .hero-blob.b3 { top: 50%; left: 8%; width: 56px; height: 56px; background: var(--blue); transform: rotate(12deg); border-width: 2px; opacity: 0.2; }
    .hero-blob.b4 { top: 25%; right: 12%; width: 36px; height: 36px; background: var(--green); border-radius: 8px; border-width: 2px; opacity: 0.3; animation: spin-slow 10s linear infinite; }
    .hero-star {
        position: absolute;
        opacity: 0.5;
    }
    .hero-star.s1 { top: 128px; right: 20%; width: 40px; height: 40px; color: var(--orange); opacity: 0.5; animation: wiggle 3s ease-in-out infinite; }
    .hero-star.s2 { bottom: 128px; left: 18%; width: 32px; height: 32px; color: var(--blue); opacity: 0.4; animation: bounce-slow 4s ease-in-out infinite; }

    .hero-inner {
        max-width: 64rem;
        margin: 0 auto;
        text-align: center;
        position: relative;
        z-index: 10;
    }

    /* HERO 徽章 */
    .hero-badge-wrap {
        display: inline-block;
        margin-bottom: 32px;
        position: relative;
    }
    .hero-badge-wrap:hover .hero-badge-shadow { transform: translate(4px, 4px); }
    .hero-badge-wrap:hover .hero-badge-main { transform: rotate(0); }
    .hero-badge-shadow {
        position: absolute;
        inset: 0;
        background: var(--green);
        transform: translate(8px, 8px);
        border-radius: 8px;
        border: 2px solid var(--ink);
        transition: transform 0.2s ease;
    }
    .hero-badge-main {
        position: relative;
        display: flex;
        align-items: center;
        gap: 8px;
        background: #fff;
        padding: 8px 24px;
        border-radius: 8px;
        border: 2px solid var(--ink);
        font-weight: 800;
        font-size: 16px;
        transform: rotate(-2deg);
        transition: transform 0.2s ease;
    }
    .hero-badge-main svg { width: 20px; height: 20px; color: var(--pink); }

    /* HERO 大标题 */
    .hero-title {
        font-size: 48px;
        font-weight: 900;
        line-height: 1.05;
        margin-bottom: 32px;
        color: var(--ink);
        letter-spacing: -0.02em;
    }
    .hero-title-accent {
        position: relative;
        display: inline-block;
        color: var(--blue);
    }
    .hero-title-accent svg {
        position: absolute;
        bottom: -8px;
        left: 0;
        width: 100%;
    }
    .hero-lede {
        font-size: 18px;
        color: #4b5563;
        margin-bottom: 48px;
        max-width: 42rem;
        margin-left: auto;
        margin-right: auto;
        font-weight: 600;
        line-height: 1.7;
    }
    .hero-lede .br-md { display: none; }

    /* HERO 按钮 */
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 20px;
        justify-content: center;
        align-items: center;
    }
    .btn {
        padding: 16px 32px;
        border-radius: 16px;
        font-weight: 900;
        font-size: 18px;
        border: 2px solid var(--ink);
        box-shadow: var(--shadow-hard);
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: transform 0.15s ease, box-shadow 0.15s ease;
        font-family: var(--font-doodle);
    }
    .btn svg { width: 20px; height: 20px; }
    .btn:hover { transform: translateY(-4px); box-shadow: var(--shadow-hard-lg); }
    .btn:active { transform: translate(2px, 2px); box-shadow: var(--shadow-hard-sm); }
    .btn-yellow { background: var(--yellow); color: var(--ink); }
    .btn-white { background: #fff; color: var(--ink); }
    .btn-green { background: var(--green); color: var(--ink); }
    .btn-ink { background: var(--ink); color: var(--yellow); }
    .btn-md { padding: 12px 28px; font-size: 16px; }

    /* HERO 档案条 */
    .hero-meta {
        margin-top: 56px;
        display: inline-flex;
        align-items: center;
        gap: 12px;
        background: rgba(255,255,255,0.8);
        border: 2px solid var(--ink);
        border-radius: 999px;
        padding: 8px 20px;
        box-shadow: var(--shadow-hard-sm);
        font-weight: 700;
        font-size: 12px;
    }
    .hero-meta svg { width: 16px; height: 16px; color: var(--orange); }

    /* ====== 通用 Section ====== */
    .section { padding: 80px 16px; }
    .section-inner { max-width: 72rem; margin: 0 auto; }
    .section-inner.narrow { max-width: 56rem; }

    .section-head {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-bottom: 56px;
    }
    .section-tag {
        color: #fff;
        padding: 4px 16px;
        border-radius: 999px;
        border: 2px solid var(--ink);
        font-weight: 900;
        font-size: 12px;
        margin-bottom: 16px;
        box-shadow: var(--shadow-hard-sm);
    }
    .section-tag.blue { background: var(--blue); transform: rotate(2deg); }
    .section-tag.orange { background: var(--orange); transform: rotate(-2deg); }
    .section-title {
        font-size: 36px;
        font-weight: 900;
        text-align: center;
        position: relative;
    }
    .section-title .star-deco {
        position: absolute;
        right: -40px;
        top: -24px;
        width: 36px;
        height: 36px;
        color: var(--yellow);
        animation: bounce-slow 4s ease-in-out infinite;
    }
    .section-sub {
        color: #6b7280;
        margin-top: 12px;
        font-weight: 700;
        letter-spacing: 0.05em;
        font-size: 14px;
    }

    /* ====== 友链网格 ====== */
    .links-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* 骨架屏 */
    .skeleton-card {
        background: #fff;
        border-radius: 24px;
        border: 3px solid var(--ink);
        padding: 24px;
        box-shadow: var(--shadow-hard);
        height: 200px;
        opacity: 0.5;
        background: repeating-linear-gradient(45deg, #fff, #fff 10px, #f0f0f0 10px, #f0f0f0 20px);
    }
    .skeleton-dispatch {
        background: #fff;
        border-radius: 16px;
        border: 2px solid var(--ink);
        padding: 20px;
        box-shadow: var(--shadow-hard);
        height: 160px;
        opacity: 0.5;
        background: repeating-linear-gradient(45deg, #fff, #fff 10px, #f0f0f0 10px, #f0f0f0 20px);
    }

    /* 友链卡片 */
    .link-card {
        position: relative;
        display: block;
        background: #fff;
        border-radius: 24px;
        border: 3px solid var(--ink);
        padding: 24px;
        box-shadow: var(--shadow-hard);
        text-decoration: none;
        color: var(--ink);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        will-change: transform;
    }
    .link-card:hover { box-shadow: var(--shadow-hard-lg); transform: translateY(-6px); }
    .link-card.rot-left { transform: rotate(1deg); }
    .link-card.rot-right { transform: rotate(-1deg); }
    .link-card.rot-left:hover { transform: rotate(1deg) translateY(-6px); }
    .link-card.rot-right:hover { transform: rotate(-1deg) translateY(-6px); }

    .link-card-head { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px; }
    .link-avatar {
        width: 64px;
        height: 64px;
        flex: none;
        border: 2px solid var(--ink);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        box-shadow: var(--shadow-hard-sm);
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
        transition: transform 0.2s ease;
    }
    .link-card:hover .link-avatar { transform: scale(1.05); }
    .link-avatar img { width: 100%; height: 100%; object-fit: cover; }
    .link-avatar .avatar-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 30px; color: var(--ink); }
    .avatar-blue { background: var(--blue); }
    .avatar-pink { background: var(--pink); }
    .avatar-green { background: var(--green); }
    .avatar-orange { background: var(--orange); }
    .avatar-yellow { background: var(--yellow); }

    .link-info { flex: 1; min-width: 0; }
    .link-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; flex-wrap: wrap; }
    .link-num { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: #9ca3af; }
    .link-cat { font-size: 12px; font-weight: 900; color: #fff; padding: 4px 12px; border-radius: 999px; border: 2px solid var(--ink); box-shadow: var(--shadow-hard-sm); }
    .cat-blue { background: var(--blue); }
    .cat-pink { background: var(--pink); }
    .cat-green { background: var(--green); }
    .cat-orange { background: var(--orange); }

    .link-name { font-size: 20px; font-weight: 900; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: color 0.2s ease; }
    .link-card:hover .link-name { color: var(--blue); }
    .link-desc { color: #4b5563; font-weight: 600; font-size: 14px; line-height: 1.6; margin-bottom: 16px; flex-grow: 1; }
    .link-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 2px dashed #e5e7eb; }
    .link-url { font-size: 12px; font-weight: 700; color: #6b7280; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60%; }
    .link-visit { display: flex; align-items: center; gap: 4px; font-weight: 900; font-size: 12px; color: var(--ink); transition: color 0.2s ease; }
    .link-card:hover .link-visit { color: var(--pink); }
    .link-visit svg { width: 20px; height: 20px; transition: transform 0.2s ease; }
    .link-card:hover .link-visit svg { transform: translateX(4px); }

    /* 空态 */
    .empty-state {
        display: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 64px 16px;
        text-align: center;
    }
    .empty-icon {
        width: 96px;
        height: 96px;
        background: var(--yellow);
        border: 4px solid var(--ink);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: var(--shadow-hard);
        margin-bottom: 24px;
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
        animation: wiggle 3s ease-in-out infinite;
    }
    .empty-icon svg { width: 48px; height: 48px; color: var(--ink); }
    .empty-title { font-size: 24px; font-weight: 900; margin-bottom: 8px; }
    .empty-desc { color: #6b7280; font-weight: 700; }
    .empty-icon.small { width: 80px; height: 80px; background: var(--blue); }
    .empty-icon.small svg { width: 40px; height: 40px; color: #fff; }

    /* ====== § 02 申请区 ====== */
    .apply-card {
        position: relative;
        background: #fff;
        border: 4px solid var(--ink);
        border-radius: 40px;
        box-shadow: var(--shadow-hard-lg);
        padding: 40px;
        text-align: center;
        overflow: hidden;
    }
    .apply-card::before {
        content: '';
        position: absolute;
        inset: 0;
        opacity: 0.05;
        pointer-events: none;
        background-image: radial-gradient(var(--ink) 1px, transparent 1px);
        background-size: 24px 24px;
    }
    .apply-deco {
        position: absolute;
    }
    .apply-deco.tl { top: -24px; left: -24px; width: 64px; height: 64px; color: var(--yellow); }
    .apply-deco.br { bottom: -24px; right: -24px; width: 56px; height: 56px; color: var(--pink); }
    .apply-inner { position: relative; z-index: 10; }
    .apply-tag {
        display: inline-block;
        background: var(--pink);
        color: #fff;
        padding: 4px 16px;
        border-radius: 999px;
        border: 2px solid var(--ink);
        font-weight: 900;
        font-size: 12px;
        margin-bottom: 20px;
        transform: rotate(-2deg);
        box-shadow: var(--shadow-hard-sm);
    }
    .apply-title { font-size: 36px; font-weight: 900; margin-bottom: 20px; line-height: 1.2; }
    .apply-title-accent { position: relative; display: inline-block; color: var(--green); }
    .apply-title-accent svg { position: absolute; bottom: -4px; left: 0; width: 100%; }
    .apply-lede { font-size: 18px; color: #4b5563; font-weight: 600; margin-bottom: 40px; max-width: 36rem; margin-left: auto; margin-right: auto; }
    .apply-buttons { display: flex; flex-direction: column; gap: 16px; justify-content: center; align-items: center; }

    /* ====== RSS 网格 ====== */
    .feed-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .feed-card {
        display: block;
        background: #fff;
        border-radius: 16px;
        border: 2px solid var(--ink);
        padding: 20px;
        box-shadow: var(--shadow-hard);
        text-decoration: none;
        color: var(--ink);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        will-change: transform;
    }
    .feed-card:hover { box-shadow: var(--shadow-hard-lg); transform: translateY(-4px); }
    .feed-card.rot-left { transform: rotate(-1deg); }
    .feed-card.rot-right { transform: rotate(1deg); }
    .feed-card.rot-left:hover { transform: rotate(-1deg) translateY(-4px); }
    .feed-card.rot-right:hover { transform: rotate(1deg) translateY(-4px); }

    .feed-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
    .feed-avatar {
        width: 40px;
        height: 40px;
        flex: none;
        background: var(--yellow);
        border: 2px solid var(--ink);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        box-shadow: var(--shadow-hard-sm);
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    .feed-avatar img { width: 100%; height: 100%; object-fit: cover; }
    .feed-avatar .avatar-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 18px; color: var(--ink); }
    .feed-info { flex: 1; min-width: 0; }
    .feed-name { display: block; font-weight: 900; font-size: 14px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: color 0.2s ease; }
    .feed-card:hover .feed-name { color: var(--blue); }
    .feed-date { display: block; font-family: var(--font-mono); font-size: 12px; color: #9ca3af; }
    .feed-title { font-weight: 900; font-size: 16px; color: var(--ink); margin-bottom: 8px; line-height: 1.4; transition: color 0.2s ease; }
    .feed-card:hover .feed-title { color: var(--pink); }
    .feed-desc { color: #4b5563; font-weight: 600; font-size: 14px; line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    /* ====== COLOPHON ====== */
    .colophon { padding: 48px 16px; text-align: center; }
    .colophon-bar {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        background: #fff;
        border: 2px solid var(--ink);
        border-radius: 999px;
        padding: 10px 24px;
        box-shadow: var(--shadow-hard-sm);
        font-weight: 900;
        font-size: 12px;
    }

    /* ====== Toast 变体（基础 .toast 已提取至 common.css） ====== */
    .toast.success { background: var(--green); color: var(--ink); box-shadow: 4px 4px 0 0 var(--ink); }
    .toast.error { background: var(--pink); color: #fff; box-shadow: 4px 4px 0 0 var(--ink); }
    .toast.info { background: var(--blue); color: #fff; box-shadow: 4px 4px 0 0 var(--ink); }

    /* ====== Modal ====== */
    .modal {
        position: fixed;
        inset: 0;
        z-index: 1000;
        display: none;
        align-items: center;
        justify-content: center;
        padding: 16px;
    }
    .modal.open { display: flex; }
    .modal-backdrop {
        position: absolute;
        inset: 0;
        background: rgba(26, 26, 26, 0.55);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
    }
    .modal-dialog {
        position: relative;
        background: var(--paper);
        border: 3px solid var(--ink);
        border-radius: 28px;
        box-shadow: 8px 8px 0 0 var(--ink);
        max-width: 560px;
        width: 100%;
        max-height: min(85vh, 640px);
        display: flex;
        flex-direction: column;
        overflow: hidden;
        animation: modal-pop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body.modal-open { overflow: hidden; }

    .modal-close {
        position: absolute;
        top: 16px;
        right: 16px;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--yellow);
        border: 2px solid var(--ink);
        box-shadow: var(--shadow-hard-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        z-index: 2;
    }
    .modal-close:hover { transform: rotate(90deg); }
    .modal-close svg { width: 18px; height: 18px; color: var(--ink); }

    .modal-head {
        padding: 36px 36px 16px;
        text-align: center;
        flex-shrink: 0;
    }
    .modal-eyebrow {
        display: inline-block;
        font-family: var(--font-doodle);
        font-weight: 900;
        font-size: 11px;
        letter-spacing: 0.15em;
        text-transform: uppercase;
        background: var(--pink);
        color: #fff;
        padding: 5px 14px;
        border-radius: 999px;
        border: 2px solid var(--ink);
        box-shadow: var(--shadow-hard-sm);
        transform: rotate(-2deg);
        margin-bottom: 16px;
    }
    .modal-title {
        font-family: var(--font-doodle);
        font-weight: 900;
        font-size: 32px;
        line-height: 1.1;
        color: var(--ink);
        margin-bottom: 8px;
    }
    .modal-desc {
        font-family: var(--font-doodle);
        font-weight: 600;
        font-size: 14px;
        color: #666;
    }
    .modal-body {
        padding: 8px 36px 36px;
        overflow-y: auto;
        flex: 1;
        min-height: 0;
    }
    .modal-body::-webkit-scrollbar { width: 8px; }
    .modal-body::-webkit-scrollbar-track { background: transparent; }
    .modal-body::-webkit-scrollbar-thumb { background: var(--ink); border-radius: 4px; }
    .modal-body::-webkit-scrollbar-thumb:hover { background: var(--blue); }

    /* 本站信息网格 */
    .info-item {
        background: #fff;
        border: 2px solid var(--ink);
        border-radius: 16px;
        padding: 14px 16px;
        box-shadow: 3px 3px 0 0 var(--ink);
        margin-bottom: 14px;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .info-item:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 0 var(--ink); }
    .info-label {
        display: block;
        font-family: var(--font-mono);
        font-size: 11px;
        font-weight: 500;
        color: #888;
        letter-spacing: 0.05em;
        margin-bottom: 6px;
    }
    .info-value-row { display: flex; align-items: center; gap: 10px; }
    .info-value {
        flex: 1;
        font-family: var(--font-doodle);
        font-weight: 800;
        font-size: 15px;
        color: var(--ink);
        word-break: break-all;
    }
    .copy-btn {
        flex: none;
        width: 34px;
        height: 34px;
        border-radius: 10px;
        background: var(--yellow);
        border: 2px solid var(--ink);
        box-shadow: var(--shadow-hard-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: transform 0.15s ease;
    }
    .copy-btn:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 0 var(--ink); }
    .copy-btn:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 0 var(--ink); }
    .copy-btn svg { width: 16px; height: 16px; color: var(--ink); }

    /* 表单 */
    .form-group { margin-bottom: 18px; }
    .form-group label {
        display: block;
        font-family: var(--font-doodle);
        font-weight: 800;
        font-size: 13px;
        color: var(--ink);
        margin-bottom: 8px;
    }
    .required { color: var(--pink); }
    .form-group input,
    .form-group textarea {
        width: 100%;
        font-family: var(--font-doodle);
        font-weight: 600;
        font-size: 15px;
        color: var(--ink);
        background: #fff;
        border: 2px solid var(--ink);
        border-radius: 12px;
        padding: 12px 14px;
        box-shadow: var(--shadow-hard-sm);
        outline: none;
        transition: transform 0.15s ease, box-shadow 0.15s ease;
        box-sizing: border-box;
    }
    .form-group input:focus,
    .form-group textarea:focus {
        transform: translate(-1px, -1px);
        box-shadow: 3px 3px 0 0 var(--blue);
    }
    .form-group textarea { resize: vertical; min-height: 60px; }
    .char-count {
        display: block;
        text-align: right;
        font-family: var(--font-mono);
        font-size: 11px;
        color: #888;
        margin-top: 4px;
    }

    .category-toggle { display: flex; gap: 10px; flex-wrap: wrap; }
    .category-toggle-btn {
        flex: 1;
        min-width: 120px;
        font-family: var(--font-doodle);
        font-weight: 800;
        font-size: 14px;
        padding: 12px 14px;
        border-radius: 14px;
        background: #fff;
        border: 2px solid var(--ink);
        box-shadow: var(--shadow-hard-sm);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    }
    .category-toggle-btn:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 0 var(--ink); }
    .category-toggle-btn.active {
        background: var(--yellow);
        transform: translate(-1px, -1px);
        box-shadow: 3px 3px 0 0 var(--ink);
    }
    .cat-dot { width: 12px; height: 12px; border-radius: 50%; border: 1.5px solid var(--ink); }
    .cat-dot-tech { background: var(--blue); }
    .cat-dot-life { background: var(--pink); }

    .form-submit-row { margin-top: 24px; }
    .apply-submit-btn {
        width: 100%;
        font-family: var(--font-doodle);
        font-weight: 900;
        font-size: 17px;
        padding: 16px;
        border-radius: 16px;
        background: var(--ink);
        color: var(--yellow);
        border: 2px solid var(--ink);
        box-shadow: 4px 4px 0 0 var(--pink);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        transition: transform 0.15s ease, box-shadow 0.15s ease;
    }
    .apply-submit-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 0 var(--pink); }
    .apply-submit-btn:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 0 var(--pink); }
    .apply-submit-btn:disabled { opacity: 0.7; cursor: not-allowed; }
    .apply-submit-btn svg { width: 18px; height: 18px; }

    .spinner { width: 18px; height: 18px; animation: spin 0.8s linear infinite; }

    /* ====== 响应式 ====== */
    @media (min-width: 640px) {
        .hero-buttons { flex-direction: row; }
        .apply-buttons { flex-direction: row; }
        .hero-title { font-size: 72px; }
        .hero-lede .br-md { display: block; }
    }
    @media (min-width: 768px) {
        .hero-blob.b3 { display: block; }
        .hero-star.s1, .hero-star.s2 { display: block; }
        .links-grid { grid-template-columns: repeat(2, 1fr); }
        .feed-grid { grid-template-columns: repeat(2, 1fr); }
        .section-title { font-size: 48px; }
        .apply-title { font-size: 48px; }
        .apply-card { padding: 64px; }
    }
    @media (min-width: 1024px) {
        .links-grid { grid-template-columns: repeat(3, 1fr); }
        .feed-grid { grid-template-columns: repeat(3, 1fr); }
    }