/* ============================================
   滑块验证码组件（仿 jigsaw-verify Canvas）
   结构：.sc-box > .sc-stage(.sc-bg/.sc-piece)
                   > .sc-track(.sc-track-fill/.sc-track-tip/.sc-knob)
                   > .sc-tools(.sc-refresh)
   ============================================ */
.sc-box {
    width: 300px;
    max-width: 100%;
    user-select: none;
    -webkit-user-select: none;
}

.sc-stage {
    position: relative;
    width: 300px;
    max-width: 100%;
    height: 150px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    overflow: hidden;
    background: var(--surface-3);
    box-shadow: var(--shadow-xs);
}

.sc-bg {
    display: block;
    width: 100%;
    height: 100%;
    pointer-events: none;
    touch-action: none;
}

.sc-piece {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    cursor: grab;
    touch-action: none;
    will-change: left;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.3));
}

.sc-piece.sc-dragging,
.sc-knob.sc-dragging {
    cursor: grabbing;
}

/* 失败后平滑回弹 */
.sc-piece.sc-back,
.sc-knob.sc-back,
.sc-track-fill.sc-back {
    transition: all 0.5s ease;
}

/* 拖动轨道 */
.sc-track {
    position: relative;
    margin-top: 12px;
    height: 44px;
    border-radius: var(--radius-full);
    background: linear-gradient(180deg, var(--surface-2), var(--surface-3));
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.sc-track-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    opacity: 0.35;
    border-radius: var(--radius-full);
    pointer-events: none;
}

.sc-track-tip {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--text-muted);
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
    background: linear-gradient(90deg, var(--text-muted) 0%, var(--text-muted) 35%, #fff 50%, var(--text-muted) 65%, var(--text-muted) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: scTipSlide 3s ease-in-out infinite;
}
@keyframes scTipSlide {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.sc-knob {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    touch-action: none;
    box-shadow: var(--shadow-md);
    z-index: 3;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}
.sc-knob:hover {
    box-shadow: var(--shadow-lg);
}
.sc-knob-icon {
    font-size: 18px;
    line-height: 1;
    pointer-events: none;
}

/* 工具行（换一张） */
.sc-tools {
    display: flex;
    justify-content: flex-end;
    margin-top: 6px;
}
.sc-refresh {
    background: none;
    border: none;
    padding: 2px 4px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease;
}
.sc-refresh:hover {
    color: var(--primary);
}

/* 加载中 */
.sc-loading {
    opacity: 0.6;
    pointer-events: none;
}
.sc-loading .sc-track {
    background: linear-gradient(90deg, var(--surface-3), var(--surface-2), var(--surface-3));
    background-size: 200% 100%;
    animation: scShimmer 1.2s ease infinite;
}
@keyframes scShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 校验成功 */
.sc-box.sc-success .sc-knob {
    background: var(--success);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
}
.sc-box.sc-success .sc-track-fill {
    background: var(--success);
    opacity: 0.45;
}
.sc-box.sc-success .sc-track-tip {
    color: var(--success);
    -webkit-text-fill-color: var(--success);
    background: none;
    background-clip: unset;
    -webkit-background-clip: unset;
    animation: none;
}
.sc-box.sc-success .sc-piece {
    opacity: 0;
    transition: opacity 0.4s ease 0.25s;
}

/* 校验失败：红色提示 + 抖动 */
.sc-box.sc-error .sc-knob {
    background: var(--error);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.18);
}
.sc-box.sc-error .sc-track-tip {
    color: var(--error);
}
.sc-box.sc-error {
    animation: scShake 0.4s ease;
}
@keyframes scShake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-5px); }
    75%      { transform: translateX(5px); }
}

/* ============================================
   人机验证组件（仿 Cloudflare Turnstile 复选框）
   结构：.cap-widget > .cap-check(.cap-box/.cap-info)
                    > .cap-body（滑块兜底挑战）
                    > .cap-brand
   ============================================ */
.cap-widget {
    width: 300px;
    max-width: 100%;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    background: #fff;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    overflow: hidden;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.cap-widget:focus-within {
    border-color: #c7d2fe;
    box-shadow: 0 0 0 2px rgba(99,102,241,0.10);
}

.cap-check {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    cursor: pointer;
    outline: none;
}

.cap-box {
    flex: none;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid #d1d5db;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.cap-tick {
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    opacity: 0;
}
.cap-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid #6366f1;
    border-top-color: transparent;
    border-radius: 50%;
    animation: capSpin 0.7s linear infinite;
}
@keyframes capSpin {
    to { transform: rotate(360deg); }
}

.cap-info {
    min-width: 0;
}
.cap-title {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    line-height: 1.3;
}
.cap-sub {
    font-size: 12px;
    color: #6b7280;
    margin-top: 2px;
}

.cap-body {
    padding: 0 12px 10px;
}
.cap-body:empty {
    display: none;
}

.cap-brand {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    padding: 7px 12px;
    border-top: 1px dashed #e5e7eb;
}
.cap-brand-logo {
    flex: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cap-brand-text {
    font-size: 11px;
    color: #9ca3af;
    letter-spacing: 0.02em;
}

/* 校验中 */
.cap-widget.cap-checking .cap-box {
    border-color: #6366f1;
}

/* 验证成功 */
.cap-widget.cap-success .cap-box {
    background: #16a34a;
    border-color: #16a34a;
}
.cap-widget.cap-success .cap-tick { opacity: 1; }
.cap-widget.cap-success .cap-title { color: #16a34a; }
.cap-widget.cap-success .cap-brand { border-top-color: #e5e7eb; }

/* 验证失败 */
.cap-widget.cap-error .cap-box {
    background: #ef4444;
    border-color: #ef4444;
}
.cap-widget.cap-error .cap-tick { opacity: 1; }
.cap-widget.cap-error .cap-title { color: #ef4444; }
.cap-widget.cap-error { animation: capShake 0.4s ease; }
@keyframes capShake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-4px); }
    75%      { transform: translateX(4px); }
}

/* ============================================
   点文字验证组件（仿网易易盾「点选文字」）
   结构：.cc-box > .cc-prompt > .cc-scene(.cc-bg/.cc-piece) > .cc-tools
   ============================================ */
.cc-box {
    width: 300px;
    max-width: 100%;
    user-select: none;
    -webkit-user-select: none;
}

.cc-prompt {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 4px 10px;
    font-size: 13px;
    color: #374151;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    margin-bottom: 8px;
}
.cc-prompt-label {
    flex: none;
    color: #6b7280;
}
.cc-prompt-word {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
    letter-spacing: 0.15em;
}

.cc-scene {
    position: relative;
    width: 300px;
    height: 150px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    overflow: hidden;
    background: var(--surface-3);
    box-shadow: var(--shadow-xs);
}

.cc-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    user-select: none;
}

.cc-piece {
    position: absolute;
    min-width: 36px;
    min-height: 36px;
    padding: 0;
    border: none;
    background: transparent;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.9), 0 0 2px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s ease, filter 0.15s ease;
    z-index: 2;
}
.cc-piece:hover {
    transform: translate(-50%, -50%) scale(1.15) !important;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.8));
    z-index: 3;
}
.cc-piece.cc-selected {
    color: #fff !important;
    background: rgba(99, 102, 241, 0.85);
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.25);
    text-shadow: none;
}
.cc-piece.cc-selected::after {
    content: attr(data-index);
    position: absolute;
    top: -6px;
    right: -6px;
    width: 16px;
    height: 16px;
    background: #6366f1;
    color: #fff;
    font-size: 10px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cc-piece.cc-wrong {
    background: rgba(239, 68, 68, 0.85) !important;
    border-radius: 50%;
    animation: capShake 0.4s ease;
}
.cc-piece.cc-disabled {
    opacity: 0.35;
    pointer-events: none;
}

.cc-tools {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 10px;
}
.cc-reset,
.cc-refresh {
    background: none;
    border: none;
    padding: 2px 4px;
    font-size: 13px;
    color: #6b7280;
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.2s ease;
}
.cc-reset:hover,
.cc-refresh:hover {
    color: #6366f1;
}
.cc-reset-ic {
    display: inline-block;
    margin-right: 2px;
}

/* ============================================
   弹窗式验证（验证码高级设置：显示方式=弹窗）
   点击提交按钮时弹出，验证通过或关闭后消失
   ============================================ */
.cap-popup-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(17, 24, 39, 0.55);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    animation: capFade 0.18s ease;
}
.cap-popup-dialog {
    width: 360px;
    max-width: calc(100vw - 32px);
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
    overflow: hidden;
    animation: capPop 0.2s ease;
    font-family: inherit;
}
.cap-popup-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid #f3f4f6;
}
.cap-popup-title {
    font-size: 15px;
    font-weight: 600;
    color: #111827;
}
.cap-popup-close {
    border: none;
    background: none;
    color: #9ca3af;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s ease, background 0.2s ease;
}
.cap-popup-close:hover {
    color: #111827;
    background: #f3f4f6;
}
.cap-popup-body {
    padding: 16px;
    display: flex;
    justify-content: center;
}
.cap-popup-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-bottom: 1px solid #f3f4f6;
}
.cap-popup-status.cap-popup-status-hide {
    display: none;
}
.cap-popup-status-tick {
    flex: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #16a34a;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    display: none;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.cap-popup-status-success .cap-popup-status-tick {
    display: flex;
}
.cap-popup-status-error .cap-popup-status-tick {
    display: flex;
    background: #ef4444;
}
.cap-popup-status-spinner {
    flex: none;
    width: 18px;
    height: 18px;
    border: 2px solid #6366f1;
    border-top-color: transparent;
    border-radius: 50%;
    display: none;
    animation: capSpin 0.7s linear infinite;
}
.cap-popup-status-checking .cap-popup-status-spinner {
    display: block;
}
.cap-popup-status-title {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
}
.cap-popup-status-sub {
    font-size: 12px;
    color: #6b7280;
    margin-top: 2px;
}
@keyframes capFade {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes capPop {
    from { opacity: 0; transform: translateY(12px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============================================
   推理拼图交换验证（swap）
   ============================================ */
.sw-box {
    width: 320px;
    max-width: 100%;
    user-select: none;
    -webkit-user-select: none;
}
.sw-prompt {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 4px;
    font-size: 13px;
    color: #374151;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    margin-bottom: 8px;
}
.sw-prompt-label {
    flex: none;
    color: #6b7280;
    font-weight: 600;
}
.sw-prompt-word {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
}
.sw-scene {
    position: relative;
    background: #e5e7eb;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    overflow: visible;
    box-shadow: var(--shadow-xs);
}
.sw-tile {
    position: absolute;
    cursor: pointer;
    border-radius: 3px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.15s ease;
    user-select: none;
    -webkit-user-select: none;
}
.sw-tile:hover {
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.25);
    z-index: 2;
}
.sw-tile.sw-selected {
    box-shadow: 0 0 0 3px #6366f1, 0 3px 10px rgba(99, 102, 241, 0.4);
    z-index: 3;
}
.sw-tile.sw-success {
    box-shadow: 0 0 0 3px #16a34a, 0 3px 10px rgba(16, 185, 129, 0.4);
}
.sw-tile-idx {
    position: absolute;
    bottom: 2px;
    right: 3px;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.85);
    background: rgba(0, 0, 0, 0.4);
    border-radius: 3px;
    padding: 0 4px;
    line-height: 1.5;
    pointer-events: none;
    font-weight: 700;
}
.sw-tools {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 10px;
}
.sw-reset,
.sw-refresh {
    background: none;
    border: none;
    padding: 2px 4px;
    font-size: 13px;
    color: #6b7280;
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.2s ease;
}
.sw-reset:hover,
.sw-refresh:hover {
    color: #6366f1;
}
.sw-reset-ic {
    margin-right: 2px;
}