/* ==========================================================================
   89 Finance Official Designated Sole Payment Address - Global Stylesheet
   Modern Institutional Fintech & Web3 Aesthetics
   ========================================================================== */

:root {
    --bg-dark: #07090e;
    --bg-surface: #0d121d;
    --bg-surface-elevated: #131b2a;
    --bg-card: rgba(19, 27, 42, 0.85);
    
    --primary: #00d2ff;
    --primary-glow: rgba(0, 210, 255, 0.25);
    --gold: #f5a623;
    --gold-glow: rgba(245, 166, 35, 0.2);
    --success: #00e676;
    --danger: #ff3b30;
    --warning: #ff9800;

    --text-main: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(0, 210, 255, 0.3);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", Courier, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(0, 102, 255, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 100% 100%, rgba(245, 166, 35, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #07090e 0%, #090e17 100%);
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
    padding-bottom: 90px; /* Space for sticky bottom lang bar */
}

/* ================= Container ================= */
.app-container {
    max-width: 580px; /* Optimized for mobile viewing */
    margin: 0 auto;
    padding: 20px 16px;
    position: relative;
    z-index: 10;
}

/* ================= Top Security Banner ================= */
.security-status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 210, 255, 0.06);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: 30px;
    padding: 8px 14px;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--primary);
    text-transform: uppercase;
}

.status-pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--success);
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 230, 118, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
}

.ssl-badge {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    color: var(--text-secondary);
}

.ssl-badge svg {
    width: 14px;
    height: 14px;
    fill: var(--gold);
}

/* ================= Header Area ================= */
.portal-header {
    text-align: center;
    margin-bottom: 24px;
}

.brand-icon-box {
    width: 58px;
    height: 58px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #132438, #0e1724);
    border: 1px solid var(--border-highlight);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px var(--primary-glow);
}

.brand-icon-box svg {
    width: 32px;
    height: 32px;
    fill: url(#brandGrad);
}

.page-title {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    color: #ffffff;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
    background: linear-gradient(180deg, #ffffff 30%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 0 8px;
}

/* ================= Warning & Notice Box ================= */
.notice-card {
    background: linear-gradient(180deg, rgba(245, 166, 35, 0.1) 0%, rgba(245, 166, 35, 0.04) 100%);
    border: 1px solid rgba(245, 166, 35, 0.35);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.notice-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gold);
}

.notice-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.notice-header svg {
    width: 20px;
    height: 20px;
    fill: var(--gold);
    flex-shrink: 0;
}

.notice-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.notice-core {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1.4;
}

.notice-list {
    list-style: none;
    font-size: 12.5px;
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    line-height: 1.5;
}

.notice-list li {
    position: relative;
    padding-left: 2px;
}

/* ================= Section Title ================= */
.section-intro {
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-title {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 6px;
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 14px;
    background: var(--primary);
    border-radius: 2px;
}

/* ================= Crypto Address Cards ================= */
.crypto-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
}

.crypto-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 18px 16px;
    backdrop-filter: blur(12px);
    transition: all 0.25s ease;
    position: relative;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.crypto-card:hover {
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.crypto-card.btc { --chain-color: #f7931a; }
.crypto-card.eth { --chain-color: #627eea; }
.crypto-card.bnb { --chain-color: #f0b90b; }
.crypto-card.trc20 { --chain-color: #00bfa5; }

.crypto-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at top right, var(--chain-color), transparent 70%);
    opacity: 0.12;
    pointer-events: none;
    border-top-right-radius: 16px;
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.chain-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chain-logo-wrap {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chain-logo-wrap svg {
    width: 24px;
    height: 24px;
}

.chain-meta {
    display: flex;
    flex-direction: column;
}

.chain-symbol {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
}

.chain-tag {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.network-badge {
    font-size: 10.5px;
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-weight: 600;
}

/* Address Display Area */
.address-box {
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 14px;
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 13.5px;
    line-height: 1.45;
    color: #cbd5e1;
    position: relative;
    user-select: all;
    cursor: pointer;
}

.address-box:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.addr-highlight {
    color: #ffffff;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: var(--chain-color);
}

/* Action Buttons */
.card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn {
    border: none;
    outline: none;
    cursor: pointer;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, #0084ff 0%, #00d2ff 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 132, 255, 0.3);
}

.btn-primary:active {
    transform: scale(0.97);
}

.btn-primary.copied {
    background: linear-gradient(135deg, #00b060 0%, #00e676 100%);
    box-shadow: 0 4px 12px rgba(0, 230, 118, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-secondary:active {
    transform: scale(0.97);
}

/* ================= Footer ================= */
.portal-footer {
    text-align: center;
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

.portal-footer .legal {
    margin-bottom: 4px;
}

.portal-footer .fraud-shield {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* ================= Sticky Bottom Language Bar ================= */
.bottom-lang-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(13, 18, 29, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.5);
}

.lang-selector-group {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 30px;
    padding: 4px 6px;
    max-width: 100%;
    overflow-x: auto;
}

.lang-globe-icon {
    width: 16px;
    height: 16px;
    fill: var(--text-secondary);
    margin-left: 6px;
    flex-shrink: 0;
}

.lang-btn {
    border: none;
    outline: none;
    cursor: pointer;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.lang-btn:hover {
    color: #ffffff;
}

.lang-btn.active {
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.2), rgba(0, 132, 255, 0.3));
    border: 1px solid rgba(0, 210, 255, 0.4);
    color: #ffffff;
    font-weight: 600;
}

/* ================= QR Code Modal ================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.78);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--bg-surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 24px;
    width: 100%;
    max-width: 360px;
    text-align: center;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    transform: scale(0.92);
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-title {
    font-size: 17px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
}

.modal-chain-name {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.modal-qr-canvas-box {
    background: #ffffff;
    padding: 16px;
    border-radius: 14px;
    width: 220px;
    height: 220px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-qr-canvas-box canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.modal-addr-text {
    font-family: var(--font-mono);
    font-size: 11.5px;
    word-break: break-all;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.35);
    padding: 8px 10px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.modal-tip {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.modal-btn-close {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 11px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

/* ================= PC Friendly Reminder Modal ================= */
.pc-friendly-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 7, 12, 0.88);
    backdrop-filter: blur(14px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: 20px;
}

.pc-friendly-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.pc-friendly-card {
    background: linear-gradient(180deg, #131c2d 0%, #0d131f 100%);
    border: 1px solid rgba(0, 210, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 210, 255, 0.15);
    border-radius: 24px;
    padding: 32px 28px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    position: relative;
}

.pc-device-icon-wrap {
    width: 64px;
    height: 64px;
    background: rgba(0, 210, 255, 0.1);
    border: 1px solid rgba(0, 210, 255, 0.3);
    border-radius: 20px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pc-device-icon-wrap svg {
    width: 32px;
    height: 32px;
    fill: var(--primary);
}

.pc-title {
    font-size: 19px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 10px;
}

.pc-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 20px;
}

.pc-qr-box {
    background: #ffffff;
    padding: 14px;
    border-radius: 16px;
    width: 190px;
    height: 190px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.pc-qr-box canvas {
    width: 100%;
    height: 100%;
}

.pc-qr-hint {
    font-size: 12px;
    color: var(--gold);
    font-weight: 500;
    margin-bottom: 24px;
}

.pc-continue-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-secondary);
    padding: 10px 18px;
    font-size: 12.5px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.pc-continue-btn:hover {
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

/* ================= WeChat Open In Browser Mask ================= */
.wechat-mask {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    flex-direction: column;
    padding: 24px;
}

.wechat-mask.active {
    display: flex;
}

.wechat-arrow-box {
    display: flex;
    justify-content: flex-end;
    padding-right: 12px;
    margin-bottom: 16px;
}

.wechat-arrow-svg {
    width: 64px;
    height: 64px;
    animation: bounceRight 1.5s infinite;
}

@keyframes bounceRight {
    0%, 100% { transform: translateY(0) rotate(10deg); }
    50% { transform: translateY(-10px) rotate(15deg); }
}

.wechat-card {
    background: #192233;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 24px 20px;
    color: #ffffff;
}

.wechat-card h3 {
    font-size: 18px;
    margin-bottom: 14px;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 8px;
}

.wechat-step-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 14px;
    color: #e2e8f0;
    margin-bottom: 16px;
}

.wechat-step-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 14px;
    border-radius: 8px;
    border-left: 3px solid var(--primary);
}

.wechat-dismiss {
    text-align: center;
    margin-top: 16px;
}

.wechat-dismiss-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    text-decoration: underline;
    cursor: pointer;
}

/* ================= 5-Second High-Tech Loading Transition ================= */
.security-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(6, 8, 14, 0.96);
    backdrop-filter: blur(20px);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    padding: 24px;
}

.security-transition-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.transition-radar-wrap {
    position: relative;
    width: 120px;
    height: 120px;
    margin-bottom: 24px;
}

.radar-circle-bg {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid rgba(0, 210, 255, 0.15);
    position: absolute;
    top: 0;
    left: 0;
}

.radar-sweep {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--primary);
    border-right-color: var(--primary);
    animation: radarSpin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.4);
}

@keyframes radarSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.countdown-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-mono);
    font-size: 26px;
    font-weight: 800;
    color: #ffffff;
    text-shadow: 0 0 12px var(--primary-glow);
}

.countdown-unit {
    font-size: 14px;
    color: var(--primary);
}

.transition-title {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
    text-align: center;
    letter-spacing: -0.2px;
}

.transition-desc {
    font-size: 12.5px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 320px;
    margin-bottom: 20px;
    line-height: 1.5;
}

/* Progress bar */
.transition-progress-rail {
    width: 100%;
    max-width: 280px;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 14px;
    position: relative;
}

.transition-progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #0084ff, #00d2ff, #00e676);
    border-radius: 10px;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.6);
}

.transition-status-log {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--primary);
    text-align: center;
    height: 18px;
    letter-spacing: 0.2px;
}

/* ================= Global Toast Notification ================= */
.toast-msg {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: rgba(18, 26, 40, 0.95);
    border: 1px solid var(--success);
    border-radius: 30px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 230, 118, 0.2);
    z-index: 4000;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
    max-width: 90%;
    text-align: center;
}

.toast-msg.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-msg svg {
    width: 18px;
    height: 18px;
    fill: var(--success);
    flex-shrink: 0;
}

/* ================= Responsive Adjustments ================= */
@media (min-width: 769px) {
    /* PC mode styling if user chooses to stay */
    .app-container {
        max-width: 680px;
        padding: 40px 24px;
    }

    .page-title {
        font-size: 26px;
    }
}

/* Accessible control states for the local replica */
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible,
.lang-btn:focus-visible,
.modal-btn-close:focus-visible,
.pc-continue-btn:focus-visible,
.wechat-dismiss-btn:focus-visible,
.address-box:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}
.btn:disabled,
.lang-btn:disabled,
.modal-btn-close:disabled,
.pc-continue-btn:disabled,
.wechat-dismiss-btn:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
}
.btn[aria-busy="true"] { cursor: wait; opacity: 0.72; pointer-events: none; }
.btn-primary:hover { box-shadow: 0 6px 18px rgba(0, 132, 255, 0.48); }
.btn-primary:active,
.btn-secondary:active,
.modal-btn-close:active,
.pc-continue-btn:active,
.wechat-dismiss-btn:active,
.lang-btn:active { transform: translateY(1px); }
.modal-btn-close:hover { background: rgba(255, 255, 255, 0.16); }
.modal-btn-close:disabled { background: rgba(255, 255, 255, 0.04); }
.wechat-dismiss-btn {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 9px 14px;
    text-decoration: none;
    transition: all 0.2s ease;
}
.wechat-dismiss-btn:hover { color: #ffffff; background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.3); }
.lang-btn { border: 1px solid rgba(255, 255, 255, 0.08); background: rgba(255, 255, 255, 0.025); }
.lang-btn:hover { background: rgba(255, 255, 255, 0.08); }
.lang-btn.active { border-color: rgba(0, 210, 255, 0.4); }