/* ======================================================================
 *  二维码解析器 v2（qrcode-decode.css）
 *  设计：入口 Tab + 大上传区 + 摄像头取景 + 结果卡片；深色模式适配
 * ====================================================================== */
.qd-hero {
    position: relative;
    overflow: hidden;
    border-radius: 22px;
    padding: 28px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--c-border, #eef1f6);
    box-shadow: var(--shadow-md, 0 4px 16px rgba(16, 24, 40, 0.06));
}
.qd-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(560px 200px at 88% -10%, rgba(139, 92, 246, 0.08), transparent 65%),
        radial-gradient(480px 200px at 6% -12%, rgba(6, 182, 212, 0.08), transparent 65%);
    pointer-events: none;
}

/* ===== 头部 ===== */
.qd-head {
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    margin-bottom: 22px;
}
.qd-logo {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    font-size: 26px;
    border-radius: 16px;
    background: linear-gradient(135deg, #7c3aed, #06b6d4);
    color: #fff;
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.30);
}
.qd-title { font-size: 24px; font-weight: 800; color: var(--c-text, #111827); letter-spacing: 0.5px; }
.qd-sub { font-size: 13px; color: var(--c-text-muted, #6b7280); margin-top: 2px; }

/* ===== 布局 ===== */
.qd-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 22px;
    position: relative;
}
@media (max-width: 960px) {
    .qd-layout { grid-template-columns: 1fr; }
}
.qd-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

/* ===== 三种入口 ===== */
.qd-entries {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.qd-entry {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 10px;
    border-radius: 12px;
    border: 1px solid var(--c-border, #eef1f6);
    background: var(--c-bg-soft, #f8fafc);
    color: var(--c-text-sub, #4b5563);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.qd-entry-icon { font-size: 17px; }
.qd-entry:hover {
    border-color: rgba(124, 58, 237, 0.45);
    color: var(--c-primary, #2563eb);
    transform: translateY(-2px);
}
.qd-entry.active {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(6, 182, 212, 0.12));
    border-color: var(--c-primary, #7c3aed);
    color: var(--c-primary, #7c3aed);
    box-shadow: inset 0 0 0 1px rgba(124, 58, 237, 0.20);
}

/* ===== 上传区 ===== */
.qd-dropzone {
    position: relative;
    border: 2px dashed var(--c-border, #d7dde8);
    border-radius: 16px;
    padding: 44px 20px;
    display: grid;
    place-items: center;
    background: var(--c-bg-soft, #f8fafc);
    cursor: pointer;
    text-align: center;
    transition: all 0.25s;
    min-height: 210px;
}
.qd-dropzone:hover,
.qd-dropzone.dragover {
    border-color: var(--c-primary, #7c3aed);
    background: rgba(124, 58, 237, 0.05);
    transform: scale(1.005);
}
.qd-drop-icon {
    font-size: 44px;
    margin-bottom: 12px;
    animation: qdBob 2.4s ease-in-out infinite;
}
@keyframes qdBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
.qd-drop-main { font-size: 15px; font-weight: 600; color: var(--c-text, #111827); }
.qd-drop-sub { font-size: 12px; color: var(--c-text-muted, #6b7280); margin-top: 6px; }

/* 粘贴提示条 */
.qd-paste-tip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--c-text-sub, #4b5563);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.25);
    border-radius: 12px;
    padding: 12px 16px;
    animation: qdFadeIn 0.4s ease;
}
.qd-paste-tip b { color: var(--c-primary, #0891b2); }
@keyframes qdFadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 摄像头 ===== */
.qd-cam { display: flex; flex-direction: column; gap: 12px; }
.qd-cam-box {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 420px;
    border-radius: 16px;
    overflow: hidden;
    background: #0b1221;
    border: 1px solid var(--c-border, #eef1f6);
}
.qd-cam-box video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.qd-cam-mask {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    pointer-events: none;
}
.qd-cam-mask::before {
    content: "";
    width: 62%;
    aspect-ratio: 1 / 1;
    border: 2px solid rgba(255, 255, 255, 0.55);
    border-radius: 16px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
}
.qd-cam-line {
    position: absolute;
    width: 62%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #22d3ee, transparent);
    box-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
    animation: qdScan 2.4s ease-in-out infinite;
}
@keyframes qdScan {
    0% { top: 22%; }
    50% { top: 76%; }
    100% { top: 22%; }
}
.qd-cam-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #94a3b8;
    font-size: 13px;
    background: #0b1221;
}
.qd-cam-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.qd-cam-hint { font-size: 12px; color: var(--c-text-muted, #6b7280); }

/* ===== 识别中 ===== */
.qd-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 44px 0;
    color: var(--c-text-sub, #4b5563);
    font-size: 13px;
}
.qd-spinner {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 3px solid var(--c-border, #e5e7eb);
    border-top-color: var(--c-primary, #7c3aed);
    animation: qdSpin 0.9s linear infinite;
}
@keyframes qdSpin { to { transform: rotate(360deg); } }

/* ===== 结果卡片 ===== */
.qd-result {
    border-radius: 16px;
    border: 1px solid rgba(16, 185, 129, 0.30);
    background: rgba(16, 185, 129, 0.06);
    padding: 18px;
    animation: qdPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes qdPop {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}
.qd-result-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}
.qd-result-badge {
    font-size: 13px;
    font-weight: 700;
    color: #059669;
}
.qd-result-type {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.14);
    color: #059669;
}
.qd-result-content {
    font-size: 14px;
    line-height: 1.7;
    color: var(--c-text, #111827);
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--c-border, #eef1f6);
    border-radius: 10px;
    padding: 14px;
    word-break: break-all;
    max-height: 160px;
    overflow-y: auto;
    white-space: pre-wrap;
    user-select: all;
}
.qd-result-content a {
    color: var(--c-primary, #2563eb);
    text-decoration: underline;
    word-break: break-all;
}
.qd-result-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
}

/* ===== 失败提示 ===== */
.qd-fail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 40px 0;
    border: 1px dashed var(--c-border, #d7dde8);
    border-radius: 16px;
    color: var(--c-text-muted, #6b7280);
    font-size: 13px;
    animation: qdFadeIn 0.35s ease;
}
.qd-fail-icon { font-size: 40px; }

/* ===== 通用按钮 ===== */
.qd-btn {
    font-size: 13px;
    font-weight: 600;
    padding: 9px 18px;
    border-radius: 10px;
    border: 1px solid var(--c-border, #e5e7eb);
    background: var(--c-bg-card, #fff);
    color: var(--c-text, #111827);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.qd-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md, 0 4px 14px rgba(16, 24, 40, 0.12)); }
.qd-btn:active { transform: translateY(0); }
.qd-btn.primary {
    background: linear-gradient(135deg, #7c3aed, #06b6d4);
    color: #fff;
    border: 0;
    box-shadow: 0 6px 18px rgba(124, 58, 237, 0.28);
}
.qd-btn.ghost { background: transparent; }

/* ===== 侧栏 ===== */
.qd-side { display: flex; flex-direction: column; gap: 14px; }
.qd-card {
    background: var(--c-bg-soft, #f8fafc);
    border: 1px solid var(--c-border, #eef1f6);
    border-radius: 14px;
    padding: 16px;
}
.qd-card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-text, #111827);
    margin-bottom: 12px;
}
.qd-history { display: flex; flex-direction: column; gap: 8px; max-height: 340px; overflow-y: auto; }
.qd-history-empty {
    font-size: 12px;
    color: var(--c-text-muted, #9ca3af);
    text-align: center;
    padding: 22px 0;
    border: 1px dashed var(--c-border, #d7dde8);
    border-radius: 10px;
}
.qd-history-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--c-border, #eef1f6);
    background: var(--c-bg-card, #fff);
    cursor: pointer;
    transition: all 0.2s;
}
.qd-history-item:hover { border-color: var(--c-primary, #7c3aed); transform: translateX(2px); }
.qd-history-icon { font-size: 18px; flex-shrink: 0; }
.qd-history-body { min-width: 0; flex: 1; }
.qd-history-text {
    font-size: 12px;
    color: var(--c-text, #111827);
    word-break: break-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.qd-history-type {
    font-size: 10px;
    color: var(--c-text-muted, #9ca3af);
    margin-top: 3px;
}
.qd-history-del {
    border: 0;
    background: transparent;
    color: var(--c-text-muted, #9ca3af);
    font-size: 11px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 6px;
    flex-shrink: 0;
    opacity: 0;
    transition: all 0.2s;
}
.qd-history-item:hover .qd-history-del { opacity: 1; }
.qd-history-del:hover { color: #ef4444; background: rgba(239, 68, 68, 0.08); }

.qd-tips { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.qd-tips li {
    font-size: 12px;
    color: var(--c-text-sub, #4b5563);
    line-height: 1.6;
    padding-left: 18px;
    position: relative;
}
.qd-tips li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 7px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7c3aed, #06b6d4);
}

/* ===== 工具类 ===== */
.hidden { display: none !important; }

/* ===== 深色模式 ===== */
[data-theme="dark"] .qd-hero { background: var(--c-bg-card); }
[data-theme="dark"] .qd-dropzone { background: var(--c-surface-soft, rgba(255, 255, 255, 0.03)); }
[data-theme="dark"] .qd-entry { background: var(--c-surface-soft, rgba(255, 255, 255, 0.03)); }
[data-theme="dark"] .qd-result-content { background: var(--c-surface-soft); }
[data-theme="dark"] .qd-card { background: var(--c-surface-soft, rgba(255, 255, 255, 0.03)); }
[data-theme="dark"] .qd-history-item { background: var(--c-bg-card); }
[data-theme="dark"] .qd-btn:not(.primary):not(.ghost) { background: var(--c-surface-soft); color: var(--c-text); }

/* 响应式 */
@media (max-width: 520px) {
    .qd-hero { padding: 16px; }
    .qd-title { font-size: 20px; }
    .qd-entry { flex-direction: column; gap: 4px; padding: 10px 6px; font-size: 12px; }
}