:root {
            --ink: #172033;
            --muted: #69758a;
            --line: #dce4ef;
            --paper: #ffffff;
            --soft: #f5f8fc;
            --blue: #246bfe;
            --green: #11a06b;
            --pink: #e73570;
            --amber: #f59e0b;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow: 0 20px 58px rgba(23, 32, 51, .13);
            --soft-shadow: 0 14px 38px rgba(23, 32, 51, .09);
        }
        * { box-sizing: border-box; }
        body {
            margin: 0;
            font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
            color: var(--ink);
            background:
                linear-gradient(180deg, #eef5ff 0, #f8fbff 38%, #f6f7fb 100%);
        }
        button, input { font-family: inherit; }
        button { border: 0; cursor: pointer; }
        .wrap { width: min(1220px, calc(100% - 34px)); margin: 0 auto; }

        .nav-links a,
        .eyebrow,
        .hero-actions a,
        .chip,
        .hero-card,
        .hero-card .stats-board,
        .counter-item,
        .mini-stat,
        .panel,
        .step,
        .status-card,
        .status-icon,
        .notice,
        .input-shell,
        .btn,
        .register-live,
        .progress,
        .claim,
        .section-card,
        .activity,
        .badge,
        .empty,
        .band-item,
        .flow-section,
        .flow-item,
        .flow-item .num,
        .toast,
        .modal,
        .code-input {
            border-radius: var(--radius);
        }

        .site-nav {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 0 8px;
            color: #fff;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            color: #fff;
            text-decoration: none;
            min-width: 0;
        }
        .brand-logo {
            display: block;
            width: min(276px, 52vw);
            height: auto;
            filter: drop-shadow(0 16px 26px rgba(0,0,0,.20));
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }
        .nav-links a {
            color: rgba(255,255,255,.88);
            text-decoration: none;
            border: 1px solid rgba(255,255,255,.24);
            background: rgba(255,255,255,.12);
            padding: 9px 12px;
            font-size: 13px;
            font-weight: 900;
            backdrop-filter: blur(12px);
        }
        .nav-links a:hover { background: rgba(255,255,255,.2); }

        .hero {
            position: relative;
            overflow: hidden;
            min-height: 436px;
            color: #fff;
            background:
                linear-gradient(135deg, rgba(18, 86, 245, .96) 0%, rgba(9, 162, 132, .92) 52%, rgba(245, 142, 36, .9) 100%),
                repeating-linear-gradient(45deg, rgba(255,255,255,.14) 0 1px, transparent 1px 16px);
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(90deg, rgba(255,255,255,.18) 0 1px, transparent 1px 72px),
                linear-gradient(0deg, rgba(255,255,255,.14) 0 1px, transparent 1px 72px);
            mask-image: linear-gradient(90deg, #000, transparent 78%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            display: grid;
            grid-template-columns: minmax(0, 1.08fr) 410px;
            gap: 36px;
            align-items: center;
            padding: 34px 0 76px;
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,.16);
            border: 1px solid rgba(255,255,255,.28);
            padding: 8px 12px;
            font-size: 13px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .hero h1 {
            margin: 0;
            font-size: clamp(48px, 7vw, 82px);
            line-height: 1.08;
            letter-spacing: 0;
            color: transparent;
            background:
                linear-gradient(180deg, #ffffff 0%, #f5fdff 36%, #bff7ff 64%, #ffe5a9 100%),
                linear-gradient(135deg, rgba(255,255,255,.72), rgba(157,244,255,.24) 52%, rgba(255,221,137,.28));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-stroke: 1px rgba(255,255,255,.55);
            text-shadow:
                0 3px 0 rgba(18,82,128,.20),
                0 14px 34px rgba(2,21,54,.30),
                0 0 34px rgba(255,255,255,.18);
            filter: drop-shadow(0 16px 20px rgba(0,0,0,.16));
        }
        .domain-art {
            position: relative;
            isolation: isolate;
            display: inline-flex;
            align-items: baseline;
            justify-content: center;
            gap: .02em;
            margin: 16px 0 0;
            padding: 10px 18px 14px;
            font-family: "Arial Black", Impact, "Microsoft YaHei", sans-serif;
            font-size: clamp(32px, 3.6vw, 46px);
            font-weight: 1000;
            line-height: 1;
            letter-spacing: 0;
            border-radius: 8px;
            transform: none;
            backdrop-filter: blur(14px);
        }
        .domain-art::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -2;
            background:
                linear-gradient(135deg, rgba(255,255,255,.24), rgba(255,255,255,.08) 48%, rgba(255,255,255,.18)),
                linear-gradient(90deg, rgba(36,107,254,.15), rgba(17,160,107,.16), rgba(245,158,11,.16));
            border: 1px solid rgba(255,255,255,.38);
            border-radius: 8px;
            box-shadow:
                inset 0 1px 0 rgba(255,255,255,.46),
                inset 0 -18px 38px rgba(5,28,72,.12),
                0 18px 38px rgba(4,24,54,.18);
        }
        .domain-art::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 8px;
            height: 4px;
            z-index: -1;
            background: linear-gradient(90deg, #2f6bff, #16c6ad, #ff9d2e);
            border-radius: 999px;
            box-shadow: 0 5px 14px rgba(22,198,173,.32);
        }
        .domain-art span {
            display: inline-block;
            color: transparent;
            background: linear-gradient(180deg, #ffffff 0%, #d8fbff 52%, #8ee9df 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-stroke: 1px rgba(255,255,255,.24);
            text-shadow:
                0 2px 0 rgba(8,36,78,.22),
                0 10px 24px rgba(0,0,0,.24);
        }
        .domain-art .dot {
            transform: translateY(-.04em);
            color: #6ff6d7;
            background: none;
            -webkit-text-stroke: 1px rgba(255,255,255,.18);
        }
        .domain-art .suffix {
            background: linear-gradient(180deg, #fff8dc 0%, #ffd272 55%, #ff9d2e 100%);
            -webkit-background-clip: text;
            background-clip: text;
            font-size: .72em;
            transform: translateY(-.04em);
        }
        .hero p {
            margin: 16px 0 0;
            max-width: 760px;
            color: rgba(255,255,255,.88);
            line-height: 1.75;
            font-size: 16px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }
        .hero-actions a {
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 18px;
            color: #10213f;
            background: #fff;
            text-decoration: none;
            font-weight: 1000;
            box-shadow: 0 16px 34px rgba(0,0,0,.15);
        }
        .hero-actions a.secondary {
            color: #fff;
            background: rgba(255,255,255,.16);
            border: 1px solid rgba(255,255,255,.32);
            box-shadow: none;
            backdrop-filter: blur(12px);
        }
        .chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
        .chip {
            background: rgba(255,255,255,.18);
            border: 1px solid rgba(255,255,255,.30);
            padding: 9px 13px;
            font-size: 13px;
            font-weight: 800;
            backdrop-filter: blur(10px);
        }
        .hero-card {
            background: rgba(255,255,255,.16);
            border: 1px solid rgba(255,255,255,.28);
            padding: 22px;
            backdrop-filter: blur(18px);
            box-shadow: 0 22px 65px rgba(0,0,0,.16);
            overflow: hidden;
        }
        .hero-card strong.board-title {
            display: block;
            color: #fff;
            font-size: 26px;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .hero-card .stats-board {
            min-height: 132px;
            margin-bottom: 16px;
            background:
                radial-gradient(circle at 18% 18%, rgba(255,255,255,.95), transparent 34%),
                linear-gradient(135deg, rgba(14,35,74,.46), rgba(18,116,114,.24) 54%, rgba(255,255,255,.08));
            border: 1px solid rgba(255,255,255,.35);
            overflow: hidden;
            padding: 16px;
        }
        .counter-head {
            display: block;
            margin-bottom: 12px;
            color: rgba(255,255,255,.86);
            font-size: 13px;
            font-weight: 900;
        }
        .counter-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .counter-item {
            position: relative;
            min-height: 82px;
            padding: 12px;
            background: rgba(6,22,50,.24);
            border: 1px solid rgba(255,255,255,.28);
            overflow: hidden;
        }
        .counter-item::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 0;
            height: 4px;
            background: linear-gradient(90deg, #2f6bff, #16c6ad, #ff9d2e);
        }
        .counter-item span {
            display: block;
            color: rgba(255,255,255,.78);
            font-size: 12px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .counter-item strong {
            display: block;
            color: #fff;
            font-family: "Arial Black", Impact, "Microsoft YaHei", sans-serif;
            font-size: clamp(24px, 2.8vw, 34px);
            line-height: 1;
            letter-spacing: 0;
            text-shadow: 0 8px 20px rgba(0,0,0,.24);
            white-space: nowrap;
        }
        .hero-card-title { font-size: 14px; color: rgba(255,255,255,.82); margin-bottom: 16px; }
        .mini-stats { display: grid; gap: 12px; }
        .mini-stat {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(255,255,255,.16);
            border: 1px solid rgba(255,255,255,.20);
            padding: 13px 14px;
        }
        .mini-stat strong { font-size: 22px; }
        .main {
            display: grid;
            grid-template-columns: 390px minmax(0, 1fr);
            gap: 24px;
            align-items: start;
            margin-top: -38px;
            padding-bottom: 54px;
            position: relative;
            z-index: 2;
        }
        .panel {
            background: rgba(255,255,255,.94);
            border: 1px solid rgba(220,228,239,.9);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .register-panel {
            position: sticky;
            top: 18px;
            overflow: hidden;
        }
        .panel-head {
            padding: 20px 22px;
            color: #fff;
            background:
                linear-gradient(135deg, #172033, #253658 65%, #2b6cff);
        }
        .panel-head h2 { margin: 0 0 6px; font-size: 22px; }
        .panel-head p { margin: 0; color: rgba(255,255,255,.74); font-size: 13px; line-height: 1.6; }
        .panel-body { padding: 22px; }

        .stepper {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            margin-bottom: 18px;
        }
        .step {
            background: #eef3fb;
            border: 1px solid #dfe8f4;
            padding: 10px;
            min-height: 64px;
        }
        .step b { display: block; font-size: 15px; margin-bottom: 3px; }
        .step span { color: var(--muted); font-size: 12px; }
        .step.active { background: #e9f1ff; border-color: #9dbdff; color: #1d5ded; }
        .step.done { background: #eaf8f1; border-color: #8addb8; color: #08784f; }

        .status-card {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 14px;
            background: #f8fbff;
            border: 1px solid #dfe8f4;
            margin-bottom: 16px;
        }
        .status-icon {
            width: 38px;
            height: 38px;
            display: grid;
            place-items: center;
            background: #eaf1ff;
            color: var(--blue);
            font-size: 20px;
            flex: 0 0 auto;
        }
        .status-card strong { display: block; margin-bottom: 4px; }
        .muted { color: var(--muted); font-size: 13px; line-height: 1.65; }

        .notice {
            border: 1px solid #f5d69a;
            background: #fff8ea;
            color: #805400;
            padding: 13px 14px;
            line-height: 1.65;
            margin-bottom: 18px;
            font-size: 13px;
        }
        .field label { display: block; font-weight: 900; margin: 0 0 8px; }
        .input-shell {
            display: flex;
            align-items: center;
            border: 1px solid #cfd9e8;
            background: #fff;
            transition: .18s ease;
        }
        .input-shell:focus-within {
            border-color: #2b6cff;
            box-shadow: 0 0 0 4px rgba(43,108,255,.12);
        }
        .input-prefix { color: var(--muted); padding-left: 13px; font-weight: 800; }
        input {
            width: 100%;
            height: 48px;
            border: 0;
            outline: 0;
            padding: 0 13px;
            font-size: 16px;
            background: transparent;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 46px;
            padding: 0 18px;
            background: var(--blue);
            color: #fff;
            font-weight: 900;
            box-shadow: 0 12px 24px rgba(36,107,254,.22);
            transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
        }
        .btn:hover { transform: translateY(-1px); box-shadow: 0 16px 30px rgba(36,107,254,.28); }
        .btn:disabled { opacity: .68; cursor: not-allowed; transform: none; }
        .btn.full { width: 100%; margin-top: 15px; }
        .btn.green { background: var(--green); box-shadow: 0 12px 24px rgba(17,160,107,.22); }
        .btn.gray { background: #66758a; box-shadow: none; }
        .spinner {
            width: 17px;
            height: 17px;
            border: 2px solid rgba(255,255,255,.42);
            border-top-color: #fff;
            border-radius: 50%;
            display: none;
            animation: spin .8s linear infinite;
        }
        .is-loading .spinner { display: inline-block; }
        @keyframes spin { to { transform: rotate(360deg); } }

        .register-live {
            display: none;
            margin-top: 15px;
            background: #eef5ff;
            border: 1px solid #c9dcff;
            padding: 14px;
        }
        .register-live.show { display: block; }
        .live-row { display: flex; align-items: center; gap: 10px; color: #1d5ded; font-weight: 900; }
        .pulse-dot {
            width: 10px;
            height: 10px;
            background: #1d5ded;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(29,93,237,.5);
            animation: pulse 1.3s infinite;
        }
        @keyframes pulse {
            70% { box-shadow: 0 0 0 12px rgba(29,93,237,0); }
            100% { box-shadow: 0 0 0 0 rgba(29,93,237,0); }
        }
        .progress {
            height: 7px;
            background: #dce9ff;
            overflow: hidden;
            margin-top: 12px;
        }
        .progress span {
            display: block;
            height: 100%;
            width: 46%;
            background: linear-gradient(90deg, #246bfe, #11a06b);
            animation: progressMove 1.15s ease-in-out infinite alternate;
        }
        @keyframes progressMove {
            from { transform: translateX(-60%); }
            to { transform: translateX(170%); }
        }

        .claim-list { display: grid; gap: 10px; margin-top: 18px; }
        .claim {
            background: #f8fbff;
            border: 1px solid #dfe8f4;
            padding: 12px;
            font-size: 13px;
            line-height: 1.55;
        }

        .section-card {
            background: rgba(255,255,255,.86);
            border: 1px solid rgba(220,228,239,.9);
            box-shadow: var(--soft-shadow);
            padding: 22px;
        }
        .section-title {
            display: flex;
            justify-content: space-between;
            gap: 18px;
            align-items: end;
            margin-bottom: 18px;
        }
        .section-title h2 { margin: 0; font-size: 28px; }
        .section-title p { margin: 7px 0 0; }
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 16px;
        }
        .activity {
            position: relative;
            overflow: hidden;
            min-height: 262px;
            background: #fff;
            border: 1px solid #dbe4ef;
            display: flex;
            flex-direction: column;
            box-shadow: 0 10px 24px rgba(23, 32, 51, .055);
            transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
        }
        .activity::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 7px;
            background: var(--color);
        }
        .activity::after {
            content: "";
            position: absolute;
            right: -30px;
            top: 28px;
            width: 130px;
            height: 130px;
            background:
                linear-gradient(135deg, transparent 0 34%, rgba(255,255,255,.7) 34% 40%, transparent 40%),
                var(--color);
            opacity: .12;
            transform: rotate(12deg);
        }
        .activity:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 42px rgba(23, 32, 51, .13);
            border-color: var(--color);
        }
        .activity-body {
            position: relative;
            z-index: 1;
            padding: 20px;
            display: flex;
            flex-direction: column;
            min-height: 262px;
        }
        .badge {
            align-self: flex-start;
            background: #f0f5ff;
            color: #1d5ded;
            padding: 6px 9px;
            font-size: 12px;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .activity h3 {
            margin: 0;
            color: var(--color);
            font-size: 22px;
            line-height: 1.25;
        }
        .activity .desc {
            color: var(--muted);
            font-size: 13px;
            line-height: 1.65;
            min-height: 46px;
            margin: 11px 0;
        }
        .reward {
            color: #db6c00;
            font-size: 13px;
            line-height: 1.55;
            margin-top: auto;
        }
        .activity .btn {
            width: 100%;
            margin-top: 16px;
            background: var(--color);
            box-shadow: none;
        }
        .empty {
            grid-column: 1 / -1;
            border: 1px dashed #b9c7d8;
            background: #fff;
            padding: 36px;
            text-align: center;
            color: var(--muted);
        }

        .home-band {
            margin: -24px auto 54px;
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 14px;
        }
        .band-item {
            min-height: 104px;
            padding: 18px;
            background: #fff;
            border: 1px solid #dbe4ef;
            box-shadow: var(--soft-shadow);
        }
        .band-item b {
            display: block;
            font-size: 25px;
            line-height: 1;
            margin-bottom: 10px;
            color: #135cff;
        }
        .band-item span {
            color: var(--muted);
            font-size: 13px;
            line-height: 1.6;
        }
        .flow-section {
            margin: 0 auto 52px;
            background: #ffffff;
            border: 1px solid #dbe4ef;
            box-shadow: var(--soft-shadow);
            padding: 26px;
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 14px;
            margin-top: 18px;
        }
        .flow-item {
            padding: 18px;
            min-height: 144px;
            border: 1px solid #dfe8f4;
            background: #f8fbff;
            box-shadow: 0 8px 20px rgba(23, 32, 51, .04);
        }
        .flow-item .num {
            width: 34px;
            height: 34px;
            display: grid;
            place-items: center;
            color: #fff;
            background: #172033;
            font-weight: 1000;
            margin-bottom: 12px;
        }
        .flow-item h3 {
            margin: 0 0 8px;
            font-size: 18px;
        }
        .flow-item p {
            margin: 0;
            color: var(--muted);
            line-height: 1.7;
            font-size: 13px;
        }
        .site-footer {
            color: #dce8ff;
            background: #111827;
            padding: 28px 0;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            gap: 18px;
            align-items: center;
            flex-wrap: wrap;
        }
        .footer-inner strong {
            display: block;
            color: #fff;
            font-size: 20px;
            margin-bottom: 4px;
        }
        .footer-inner a { color: #fff; text-decoration: none; font-weight: 900; }

        .toast {
            position: fixed;
            left: 50%;
            bottom: 26px;
            transform: translateX(-50%) translateY(18px);
            max-width: min(720px, calc(100% - 28px));
            background: #111827;
            color: #fff;
            padding: 13px 18px;
            opacity: 0;
            pointer-events: none;
            transition: .22s ease;
            z-index: 30;
            box-shadow: 0 18px 42px rgba(0,0,0,.24);
        }
        .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

        .modal-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, .54);
            display: none;
            align-items: center;
            justify-content: center;
            padding: 18px;
            z-index: 20;
        }
        .modal-backdrop.show { display: flex; }
        .modal {
            width: min(460px, 100%);
            background: #fff;
            box-shadow: 0 28px 90px rgba(0,0,0,.32);
            border: 1px solid rgba(255,255,255,.55);
            overflow: hidden;
        }
        .modal-head {
            padding: 20px 22px;
            color: #fff;
            background: linear-gradient(135deg, #172033, #246bfe);
        }
        .modal-head h3 { margin: 0 0 6px; font-size: 22px; }
        .modal-head p { margin: 0; color: rgba(255,255,255,.78); font-size: 13px; line-height: 1.6; }
        .modal-body { padding: 22px; }
        .modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
        .code-input {
            text-align: center;
            font-size: 24px;
            letter-spacing: 8px;
            font-weight: 900;
            border: 1px solid #cfd9e8;
            background: #f8fbff;
        }

        @media (max-width: 1020px) {
            .hero-inner { grid-template-columns: 1fr; padding-bottom: 72px; }
            .hero-card { max-width: 560px; }
            .main { grid-template-columns: 1fr; }
            .register-panel { position: static; }
            .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .home-band { grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .flow-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 640px) {
            body {
                background: #eef4fb;
            }
            .wrap { width: min(100% - 22px, 1220px); }
            .hero {
                min-height: 0;
                background:
                    radial-gradient(circle at 10% 8%, rgba(255,255,255,.22), transparent 32%),
                    linear-gradient(150deg, #1b6df2 0%, #16a995 55%, #f1a23a 100%);
            }
            .site-nav {
                align-items: flex-start;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0 8px;
            }
            .brand-logo { width: min(178px, 58vw); }
            .nav-links {
                width: 100%;
                display: grid;
                grid-template-columns: repeat(3, minmax(0, 1fr));
                gap: 8px;
            }
            .nav-links a {
                min-height: 38px;
                display: inline-flex;
                align-items: center;
                justify-content: center;
                padding: 0 8px;
                font-size: 12px;
                background: rgba(255,255,255,.15);
            }
            .hero-inner {
                display: block;
                padding: 18px 0 34px;
            }
            .eyebrow {
                margin-bottom: 12px;
                padding: 7px 10px;
                font-size: 12px;
            }
            .hero h1 {
                font-size: 42px;
                line-height: 1.02;
            }
            .domain-art {
                margin-top: 10px;
                font-size: 31px;
                padding: 9px 13px 12px;
                max-width: 100%;
            }
            .hero p {
                margin-top: 14px;
                font-size: 14px;
                line-height: 1.7;
                display: -webkit-box;
                -webkit-line-clamp: 3;
                -webkit-box-orient: vertical;
                overflow: hidden;
            }
            .hero-actions {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                margin-top: 18px;
            }
            .hero-actions a {
                min-height: 44px;
                padding: 0 10px;
                font-size: 14px;
            }
            .chips {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                margin-top: 12px;
            }
            .chip {
                text-align: center;
                padding: 8px 7px;
                font-size: 12px;
                white-space: nowrap;
            }
            .chip:nth-child(n+3) { display: none; }
            .hero-card {
                margin-top: 18px;
                max-width: none;
                padding: 14px;
                background: rgba(255,255,255,.13);
            }
            .hero-card strong.board-title {
                font-size: 22px;
                margin-bottom: 10px;
            }
            .hero-card-title,
            .mini-stats {
                display: none;
            }
            .hero-card .stats-board {
                min-height: 0;
                margin-bottom: 0;
                padding: 12px;
            }
            .counter-head {
                margin-bottom: 10px;
                font-size: 12px;
            }
            .counter-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .counter-item {
                min-height: 70px;
                padding: 10px;
            }
            .counter-item span {
                font-size: 11px;
                margin-bottom: 8px;
            }
            .counter-item strong {
                font-size: clamp(21px, 7vw, 28px);
            }
            .main { margin-top: -18px; }
            .register-panel.mobile-collapsed { display: none; }
            .section-title { display: block; }
            .section-card {
                padding: 16px;
                box-shadow: 0 14px 34px rgba(23,32,51,.10);
            }
            .section-title {
                margin-bottom: 14px;
            }
            .section-title h2 {
                font-size: 24px;
            }
            .section-title p {
                font-size: 12px;
            }
            .section-title .btn {
                min-height: 40px;
                margin-top: 12px;
                width: 100%;
            }
            .panel-head {
                padding: 16px;
            }
            .panel-head h2 {
                font-size: 22px;
            }
            .panel-head p {
                font-size: 12px;
            }
            .panel-body {
                padding: 16px;
            }
            .activity-grid { grid-template-columns: 1fr; }
            .activity {
                min-height: 0;
            }
            .activity::before {
                height: 5px;
            }
            .activity::after {
                right: -42px;
                top: 34px;
                width: 150px;
                height: 110px;
            }
            .activity-body {
                min-height: 0;
                padding: 16px;
            }
            .badge {
                margin-bottom: 10px;
                padding: 5px 8px;
            }
            .activity h3 {
                font-size: 22px;
            }
            .activity .desc {
                min-height: 0;
                margin: 8px 0;
            }
            .reward {
                margin-top: 6px;
            }
            .activity .btn {
                min-height: 42px;
                margin-top: 12px;
            }
            .stepper {
                grid-template-columns: repeat(3, minmax(0, 1fr));
                gap: 7px;
            }
            .step {
                min-height: 58px;
                padding: 8px 6px;
                text-align: center;
            }
            .step b {
                font-size: 13px;
            }
            .step span {
                font-size: 11px;
            }
            .status-card {
                padding: 12px;
            }
            .status-icon {
                width: 34px;
                height: 34px;
            }
            .notice {
                padding: 12px;
                margin-bottom: 14px;
            }
            .input-shell input,
            input {
                height: 46px;
            }
            .home-band { grid-template-columns: 1fr; }
            .flow-section { padding: 20px; }
        }