/* ============================================
   永行家new - 手绘涂鸦风主题
   Hand-Drawn Sketch: 纸张 + 铅笔 + 便签
   ============================================ */

:root {
    /* ── 纸张色板 ── */
    --paper-bg: #fcf8ee;           /* 主纸张（略泛黄） */
    --paper-warm: #f8f2df;         /* 次级纸张 */
    --paper-cool: #f0f4ea;         /* 冷白纸张 */
    --grid-line: #e5dcc0;          /* 网格线 */
    --grid-dot: #d4c59d;           /* 点阵 */

    /* ── 墨水色 ── */
    --ink: #2b2d3a;                /* 主墨水色，几乎是深蓝黑 */
    --ink-soft: #4c4f5e;           /* 柔化墨水，用于正文 */
    --ink-muted: #8b8680;          /* 铅笔灰 */
    --ink-faint: #bdb8ac;          /* 淡铅笔 */

    /* ── 便签粉彩 ── */
    --note-yellow: #fff3a8;
    --note-yellow-edge: #efd868;
    --note-pink: #ffd6e0;
    --note-pink-edge: #f4a8b8;
    --note-blue: #bfe3ff;
    --note-blue-edge: #7bb9e8;
    --note-green: #cbedc5;
    --note-green-edge: #7cbf6b;
    --note-peach: #ffcfa5;
    --note-peach-edge: #e69e66;

    /* ── 墨水强调 ── */
    --accent-red: #e63946;
    --accent-blue: #2b6cb0;
    --accent-green: #2f855a;
    --accent-orange: #dd6b20;

    /* ── 阴影（硬边投影） ── */
    --shadow-sm: 2px 2px 0 rgba(43, 45, 58, 0.10);
    --shadow-md: 3px 3px 0 rgba(43, 45, 58, 0.14);
    --shadow-lg: 5px 5px 0 rgba(43, 45, 58, 0.18);
    --shadow-lifted: 6px 7px 0 rgba(43, 45, 58, 0.22);

    /* ── 手绘边框半径（不规则） ── */
    --rough-sm: 12px 4px 10px 6px / 6px 10px 4px 12px;
    --rough-md: 18px 6px 22px 8px / 8px 22px 6px 18px;
    --rough-lg: 28px 10px 24px 14px / 14px 24px 10px 28px;
    --rough-note: 18px 4px 30px 6px / 6px 30px 4px 18px;
    --rough-pill: 28px 32px 26px 34px / 34px 26px 32px 28px;

    /* ── 间距 ── */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* ── 动效：弹性缓动 ── */
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
    --dur-fast: 0.18s;
    --dur-normal: 0.35s;
    --dur-slow: 0.5s;

    /* ── 字体 ── */
    --font-hand-en: 'Caveat', 'Kalam', 'Gloria Hallelujah', cursive;
    --font-hand-cn: 'Ma Shan Zheng', 'ZCOOL KuaiLe', cursive;
    --font-hand-body: 'LXGW WenKai Screen', 'Kalam', 'Noto Sans SC', sans-serif;
    --font-title: var(--font-hand-en), var(--font-hand-cn);
    --font-body: var(--font-hand-body);
}

/* ── 重置 ── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink);
    min-height: 100vh;
    overflow: hidden;

    /* 纸张 + 网格背景 */
    background-color: var(--paper-bg);
    background-image:
        linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: 28px 28px;
}

/* 手写标题字体 */
h1, h2, h3, h4,
.logo-text,
.progress-section h3,
.session-info h3,
.modal-header h3,
.map-card h3,
.map-details-card h3,
.map-progress-title {
    font-family: var(--font-title);
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.02em;
}

/* ============ App 容器 ============ */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* ============ 侧边栏（便签板） ============ */
.sidebar {
    width: 290px;
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: var(--paper-warm);
    border-right: 2px dashed var(--ink-faint);
    position: relative;
    z-index: 10;
}

.sidebar::before {
    /* 贴在墙上的便签留痕 */
    content: '';
    position: absolute;
    top: 12px;
    right: 18px;
    width: 36px;
    height: 14px;
    background: rgba(255, 214, 102, 0.55);
    transform: rotate(-6deg);
    box-shadow: 1px 1px 0 rgba(43, 45, 58, 0.12);
    border-radius: 2px;
    pointer-events: none;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 2px dotted var(--ink-faint);
    margin-bottom: var(--spacing-sm);
}

.logo-icon,
.logo-image {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border: 2px solid var(--ink);
    border-radius: 50% 48% 52% 50% / 50% 52% 48% 50%;
    background: var(--note-yellow);
    padding: 3px;
    transform: rotate(-3deg);
}

.logo-text {
    font-size: 26px;
    font-weight: 700;
    color: var(--ink);
    transform: rotate(-0.8deg);
}

/* ── 12 步进度（便签列表） ── */
.progress-section {
    padding: var(--spacing-sm) 0;
}

.progress-section h3 {
    font-size: 17px;
    margin-bottom: var(--spacing-md);
    color: var(--ink-soft);
    display: inline-block;
    padding: 2px 10px;
    background: var(--note-blue);
    border: 1.5px solid var(--ink);
    border-radius: var(--rough-sm);
    transform: rotate(-1.2deg);
    box-shadow: 2px 2px 0 rgba(43, 45, 58, 0.12);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-left: 0;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 20px;
    bottom: 20px;
    left: 15px;
    width: 2px;
    background: repeating-linear-gradient(
        to bottom,
        var(--ink-muted) 0 6px,
        transparent 6px 10px
    );
    z-index: 0;
}

.step {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 6px 10px 6px 4px;
    border-radius: var(--rough-sm);
    position: relative;
    z-index: 1;
    transition: transform var(--dur-fast) var(--ease-bounce);
    cursor: default;
}

.step:hover {
    transform: translateX(3px) rotate(-0.6deg);
}

.step-indicator {
    width: 32px;
    height: 32px;
    border-radius: 50% 48% 52% 50% / 50% 52% 48% 50%;
    background: var(--paper-bg);
    border: 2px solid var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    font-family: var(--font-hand-en);
    color: var(--ink);
    flex-shrink: 0;
    box-shadow: 2px 2px 0 rgba(43, 45, 58, 0.12);
    transition: all var(--dur-normal) var(--ease-bounce);
}

.step-label {
    font-size: 15px;
    color: var(--ink-soft);
    font-family: var(--font-body);
}

.step.active .step-indicator {
    background: var(--note-yellow);
    transform: rotate(-4deg) scale(1.08);
    box-shadow: 3px 3px 0 rgba(43, 45, 58, 0.2);
}

.step.active .step-label {
    color: var(--ink);
    font-weight: 700;
    font-family: var(--font-hand-en), var(--font-hand-cn);
    font-size: 17px;
}

.step.completed .step-indicator {
    background: var(--note-green);
    color: var(--accent-green);
}

.step.completed .step-indicator::after {
    content: '✓';
    position: absolute;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-green);
}

.step.completed .step-label {
    color: var(--ink-muted);
    text-decoration: line-through;
    text-decoration-color: var(--ink-muted);
}

/* ── 会话列表（便签堆） ── */
.session-info {
    padding-top: var(--spacing-md);
    border-top: 2px dotted var(--ink-faint);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.session-info h3 {
    font-size: 17px;
    color: var(--ink-soft);
    display: inline-block;
    align-self: flex-start;
    padding: 2px 10px;
    background: var(--note-pink);
    border: 1.5px solid var(--ink);
    border-radius: var(--rough-sm);
    transform: rotate(0.8deg);
    box-shadow: 2px 2px 0 rgba(43, 45, 58, 0.12);
    margin-bottom: var(--spacing-xs);
}

.recent-sessions-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
    padding: 4px 2px;
}

.session-item {
    padding: 10px 14px;
    background: var(--paper-bg);
    border: 1.8px solid var(--ink);
    border-radius: var(--rough-sm);
    font-size: 14px;
    color: var(--ink-soft);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    transform: rotate(-0.5deg);
    box-shadow: var(--shadow-sm);
    transition: all var(--dur-normal) var(--ease-bounce);
}

.session-item:nth-child(even) {
    transform: rotate(0.6deg);
}

.session-item:nth-child(3n) {
    transform: rotate(-1deg);
}

.session-item:hover {
    transform: translateY(-2px) rotate(-1.5deg);
    box-shadow: var(--shadow-md);
    background: var(--note-yellow);
}

.session-item.active {
    background: var(--note-green);
    color: var(--ink);
    font-weight: 700;
    border-color: var(--ink);
    box-shadow: var(--shadow-md);
}

.session-name {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.session-item-date {
    font-size: 11px;
    color: var(--ink-muted);
    font-family: var(--font-hand-en);
    flex-shrink: 0;
}

.view-more-btn {
    background: var(--paper-bg);
    border: 1.8px solid var(--ink);
    color: var(--ink);
    font-size: 14px;
    font-family: var(--font-body);
    padding: 8px 14px;
    cursor: pointer;
    border-radius: var(--rough-sm);
    text-align: center;
    text-decoration: none;
    transform: rotate(-0.8deg);
    transition: all var(--dur-fast) var(--ease-bounce);
    box-shadow: var(--shadow-sm);
}

.view-more-btn:hover {
    transform: translate(-1px, -2px) rotate(0.8deg);
    box-shadow: var(--shadow-md);
    background: var(--note-peach);
}

.current-session-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding-top: var(--spacing-md);
    border-top: 2px dotted var(--ink-faint);
    margin-top: auto;
    flex-wrap: wrap;
}

.session-id {
    font-size: 11px;
    color: var(--ink-muted);
    font-family: var(--font-hand-en);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 13px;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
}

/* 侧栏折叠（>768px 非 hover 时隐藏会话列表） */
body:not(.sidebar-open) .sidebar:not(:hover) .recent-sessions-list,
body:not(.sidebar-open) .sidebar:not(:hover) .view-more-btn,
body:not(.sidebar-open) .sidebar:not(:hover) .session-info h3 {
    display: none;
}

/* ============ 模态框（大张便签） ============ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(43, 45, 58, 0.4);
    backdrop-filter: blur(3px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.18s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--paper-bg);
    width: 90%;
    max-width: 460px;
    max-height: 82vh;
    border: 2.5px solid var(--ink);
    border-radius: var(--rough-lg);
    box-shadow: var(--shadow-lifted);
    display: flex;
    flex-direction: column;
    transform: rotate(-0.6deg);
    animation: pop-in 0.3s var(--ease-bounce);
    overflow: hidden;

    /* 叠加网格 */
    background-image:
        linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: 24px 24px;
}

@keyframes pop-in {
    from { transform: rotate(-0.6deg) scale(0.88); opacity: 0; }
    to { transform: rotate(-0.6deg) scale(1); opacity: 1; }
}

.modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 2px dashed var(--ink-faint);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--note-yellow);
}

.modal-header h3 {
    margin: 0;
    font-size: 22px;
    color: var(--ink);
}

.close-btn {
    background: transparent;
    border: 2px solid var(--ink);
    border-radius: 50% 48% 52% 50%;
    width: 32px;
    height: 32px;
    font-size: 18px;
    cursor: pointer;
    color: var(--ink);
    font-family: var(--font-hand-en);
    transition: all var(--dur-fast) var(--ease-bounce);
}

.close-btn:hover {
    transform: rotate(90deg) scale(1.1);
    background: var(--accent-red);
    color: #fff;
}

.modal-body {
    padding: var(--spacing-md);
    overflow-y: auto;
    flex: 1;
}

.modal-hint {
    font-size: 12px;
    color: var(--ink-muted);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.modal-session-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.modal-session-item {
    background: var(--paper-bg);
    padding: 12px 16px;
    border: 2px solid var(--ink);
    border-radius: var(--rough-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
    transform: rotate(-0.6deg);
    box-shadow: var(--shadow-sm);
    transition: all var(--dur-fast) var(--ease-bounce);
}

.modal-session-item:nth-child(even) {
    transform: rotate(0.8deg);
    background: var(--note-pink);
}

.modal-session-item:nth-child(3n) {
    transform: rotate(-1.2deg);
    background: var(--note-blue);
}

.modal-session-item:hover {
    transform: translate(-2px, -2px) rotate(-1.5deg);
    box-shadow: var(--shadow-md);
}

.modal-session-item:active {
    cursor: grabbing;
}

.modal-session-item.dragging {
    opacity: 0.6;
    transform: rotate(2deg) scale(1.02);
}

.modal-session-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    pointer-events: none;
}

.modal-session-title {
    font-weight: 700;
    font-size: 16px;
    color: var(--ink);
}

.modal-session-meta {
    font-size: 11px;
    color: var(--ink-muted);
    font-family: var(--font-hand-en);
    margin-top: 2px;
}

.session-actions {
    display: flex;
    gap: 6px;
}

.btn-icon-only {
    background: var(--paper-bg);
    border: 1.5px solid var(--ink);
    cursor: pointer;
    color: var(--ink);
    padding: 4px 8px;
    border-radius: 50% 48% 52% 50%;
    font-size: 14px;
    transition: all var(--dur-fast) var(--ease-bounce);
}

.btn-icon-only:hover {
    background: var(--note-yellow);
    transform: rotate(8deg) scale(1.12);
}

.btn-delete:hover {
    background: var(--accent-red);
    color: #fff;
    transform: rotate(-8deg) scale(1.12);
}

.modal-footer {
    padding: var(--spacing-md);
    border-top: 2px dashed var(--ink-faint);
    display: flex;
    justify-content: center;
    background: var(--paper-warm);
}

/* ============ 按钮统一样式 ============ */
.btn-confirm,
.btn-secondary,
.btn-danger,
.btn-primary,
.map-link-btn {
    padding: 10px 20px;
    font-size: 15px;
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    border: 2px solid var(--ink);
    background: var(--paper-bg);
    color: var(--ink);
    border-radius: var(--rough-pill);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transform: rotate(-0.4deg);
    box-shadow: var(--shadow-sm);
    transition: all var(--dur-fast) var(--ease-bounce);
}

.btn-confirm:hover,
.btn-secondary:hover,
.btn-danger:hover,
.btn-primary:hover,
.map-link-btn:hover {
    transform: translate(-2px, -2px) rotate(0.6deg);
    box-shadow: var(--shadow-md);
}

.btn-confirm:active,
.btn-secondary:active,
.btn-danger:active,
.btn-primary:active,
.map-link-btn:active {
    transform: translate(1px, 1px) rotate(-0.4deg);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--paper-bg);
}

.btn-danger {
    color: var(--accent-red);
    background: var(--paper-bg);
    border-color: var(--accent-red);
}

.btn-danger:hover {
    background: var(--accent-red);
    color: #fff;
}

.btn-primary {
    background: var(--note-yellow);
    color: var(--ink);
    font-size: 17px;
    padding: 12px 24px;
}

.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: rotate(-0.4deg);
}

/* ============ 主内容区 ============ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    max-height: 100vh;
    min-width: 0;
    overflow: hidden;
}

.chat-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md) 0;
}

.chat-container::-webkit-scrollbar {
    width: 10px;
}

.chat-container::-webkit-scrollbar-track {
    background: transparent;
}

.chat-container::-webkit-scrollbar-thumb {
    background: var(--ink-faint);
    border-radius: 999px;
    border: 2px solid var(--paper-bg);
}

.chat-container::-webkit-scrollbar-thumb:hover {
    background: var(--ink-muted);
}

.messages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

/* ============ 消息气泡（手绘便签） ============ */
.message {
    max-width: 80%;
    padding: 14px 20px;
    border: 2px solid var(--ink);
    border-radius: var(--rough-note);
    background: var(--paper-bg);
    color: var(--ink);
    animation: messageIn 0.35s var(--ease-bounce);
    position: relative;
    box-shadow: var(--shadow-sm);
    font-family: var(--font-body);
    line-height: 1.7;
    transition: box-shadow var(--dur-fast) var(--ease-bounce),
                transform var(--dur-fast) var(--ease-bounce);
}

.message:hover {
    box-shadow: var(--shadow-md);
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(12px) rotate(2deg) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotate(0) scale(1);
    }
}

/* 用户消息（右侧，蓝色便签） */
.message.user {
    align-self: flex-end;
    background: var(--note-blue);
    transform: rotate(0.6deg);
}

.message.user:hover {
    transform: rotate(-0.4deg) translateY(-2px);
}

/* AI 助手（左侧，黄色便签） */
.message.assistant {
    align-self: flex-start;
    background: var(--note-yellow);
    transform: rotate(-0.4deg);
}

.message.assistant:hover {
    transform: rotate(0.6deg) translateY(-2px);
}

/* 系统消息（居中，粉色小便签，带图钉） */
.message.system {
    align-self: center;
    background: var(--note-pink);
    text-align: center;
    font-size: 14px;
    max-width: 65%;
    padding: 10px 18px;
    transform: rotate(-1deg);
}

.message.system::before {
    /* 图钉 */
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background: radial-gradient(circle at 30% 30%, #e63946, #a42030);
    border-radius: 50%;
    box-shadow: 1px 2px 2px rgba(43, 45, 58, 0.35);
}

/* 错误消息 */
.message.error {
    align-self: center;
    background: #fde0dc;
    border-color: var(--accent-red);
    color: var(--accent-red);
    transform: rotate(-0.6deg);
}

/* 思考中状态 */
.message.thinking {
    align-self: flex-start;
    background: var(--paper-warm);
    border-style: dashed;
    color: var(--ink-muted);
    font-style: italic;
}

.message.streaming .message-content::after {
    content: '✎';
    display: inline-block;
    animation: pencil-draw 0.9s ease-in-out infinite;
    color: var(--accent-blue);
    margin-left: 3px;
    font-size: 1.2em;
}

@keyframes pencil-draw {
    0%, 100% { transform: rotate(-8deg); opacity: 1; }
    50% { transform: rotate(8deg) translateX(2px); opacity: 0.6; }
}

.message-content {
    white-space: normal;
    word-break: break-word;
    overflow-x: auto;
    color: inherit;
}

.message-content p {
    margin-bottom: var(--spacing-sm);
}

.message-content p:last-child {
    margin-bottom: 0;
}

/* Markdown 渲染 */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4 {
    margin: var(--spacing-md) 0 var(--spacing-sm);
    font-family: var(--font-title);
    font-weight: 700;
    color: var(--ink);
}

.message-content h1 { font-size: 1.8em; }
.message-content h2 { font-size: 1.55em; }
.message-content h3 { font-size: 1.3em; }
.message-content h4 { font-size: 1.1em; }

.message-content ul,
.message-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.message-content li {
    margin-bottom: 6px;
}

/* 自定义列表项，代替圆点 */
.message-content ul {
    list-style: none;
    padding-left: 4px;
}

.message-content ul li::before {
    content: '✦';
    color: var(--accent-blue);
    margin-right: 8px;
    font-size: 0.9em;
}

.message-content code {
    background: rgba(43, 45, 58, 0.08);
    border: 1.5px solid var(--ink-faint);
    padding: 1px 6px;
    border-radius: var(--rough-sm);
    font-family: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.88em;
    color: var(--accent-red);
}

.message-content pre {
    background: #f3ecd6;
    border: 2px solid var(--ink);
    border-radius: var(--rough-md);
    padding: var(--spacing-md);
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

.message-content pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--ink);
}

.message-content blockquote {
    border-left: 4px solid var(--accent-blue);
    padding: 4px 0 4px 16px;
    margin: var(--spacing-sm) 0;
    color: var(--ink-soft);
    font-style: italic;
    background: var(--paper-warm);
    border-radius: 0 var(--rough-sm) var(--rough-sm) 0;
}

.message-content hr {
    border: none;
    border-top: 2px dashed var(--ink-faint);
    margin: var(--spacing-md) 0;
}

.message-content strong {
    color: var(--ink);
    background: linear-gradient(transparent 55%, var(--note-yellow) 55%);
    padding: 0 2px;
}

.message-content em {
    color: var(--accent-blue);
    font-style: italic;
}

.message-content a {
    color: var(--accent-blue);
    text-decoration: underline wavy var(--accent-blue);
    text-underline-offset: 3px;
}

.message-content a:hover {
    color: var(--accent-red);
    text-decoration-color: var(--accent-red);
}

/* ============ 确认按钮区 ============ */
.confirmation-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    padding: var(--spacing-md);
    background: var(--paper-warm);
    border: 2px dashed var(--ink-faint);
    border-radius: var(--rough-md);
    flex-wrap: wrap;
}

.confirmation-buttons.is-hidden {
    display: none;
}

.btn-confirm {
    font-size: 15px;
    padding: 10px 20px;
    min-width: 200px;
}

.btn-satisfied {
    background: var(--note-green);
    color: var(--accent-green);
}

.btn-satisfied:hover {
    background: var(--accent-green);
    color: #fff;
}

.btn-unsatisfied {
    background: var(--note-pink);
    color: var(--accent-red);
}

.btn-unsatisfied:hover {
    background: var(--accent-red);
    color: #fff;
}

.btn-icon {
    font-size: 18px;
}

.shortcut-hint {
    font-size: 11px;
    opacity: 0.75;
    font-family: var(--font-hand-en);
    margin-left: 4px;
}

/* ============ 输入区 ============ */
.input-container {
    position: relative;
    background: var(--paper-warm);
    border: 2.5px solid var(--ink);
    border-radius: var(--rough-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transform: rotate(-0.3deg);
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    min-height: 48px;
}

#message-input {
    flex: 1;
    min-width: 0;
    background: var(--paper-bg);
    border: 2px solid var(--ink);
    color: var(--ink);
    border-radius: var(--rough-pill);
    font-size: 15px;
    font-family: var(--font-body);
    resize: none;
    max-height: 120px;
    padding: 10px 18px;
    min-height: 48px;
    line-height: 1.6;
    transition: all var(--dur-fast) var(--ease-soft);
}

#message-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 2px 2px 0 var(--accent-blue);
}

#message-input::placeholder {
    color: var(--ink-muted);
    font-style: italic;
}

.btn-send {
    width: 48px;
    height: 48px;
    border: 2px solid var(--ink);
    border-radius: 50% 48% 52% 50% / 50% 52% 48% 50%;
    background: var(--note-yellow);
    color: var(--ink);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transform: rotate(-3deg);
    transition: all var(--dur-fast) var(--ease-bounce);
}

.btn-send:hover {
    transform: rotate(3deg) translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--note-green);
}

.btn-send:active {
    transform: rotate(0) translate(1px, 1px) scale(0.95);
    box-shadow: var(--shadow-sm);
}

.btn-send.is-stop {
    background: var(--accent-red);
    color: #fff;
}

.btn-send.is-stop:hover {
    background: #c0232f;
}

.btn-send svg {
    width: 20px;
    height: 20px;
}

/* ── 语音切换/录音 ── */
.voice-toggle-btn,
.voice-record-btn {
    border: 2px solid var(--ink);
    background: var(--paper-bg);
    color: var(--ink);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-family: var(--font-body);
    transition: all var(--dur-fast) var(--ease-bounce);
    box-shadow: var(--shadow-sm);
}

.voice-toggle-btn {
    width: 44px;
    height: 44px;
    border-radius: 50% 48% 52% 50% / 50% 52% 48% 50%;
    transform: rotate(2deg);
}

.voice-toggle-btn svg {
    width: 20px;
    height: 20px;
}

.voice-toggle-btn:hover {
    transform: rotate(-3deg) translateY(-2px);
    background: var(--note-blue);
    box-shadow: var(--shadow-md);
}

.voice-toggle-btn.is-voice-mode {
    background: var(--note-blue);
    transform: rotate(-3deg);
}

.voice-record-btn {
    flex: 1;
    height: 48px;
    border-radius: var(--rough-pill);
    background: var(--note-peach);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}

.voice-record-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.voice-record-btn:active,
.voice-record-btn.is-recording {
    background: var(--accent-red);
    color: #fff;
    transform: translate(1px, 1px) scale(0.98);
    box-shadow: var(--shadow-sm);
}

.voice-record-btn.is-transcribing {
    background: var(--note-green);
    color: var(--accent-green);
    cursor: wait;
    animation: record-btn-pulse 1.4s ease-in-out infinite;
}

@keyframes record-btn-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ── 录音状态悬浮 ── */
.recording-indicator {
    position: absolute;
    left: var(--spacing-md);
    bottom: calc(100% + 10px);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--ink);
    color: var(--paper-bg);
    padding: 8px 16px;
    border-radius: var(--rough-pill);
    border: 2px solid var(--ink);
    box-shadow: var(--shadow-md);
    font-size: 13px;
    font-family: var(--font-hand-en);
    opacity: 0;
    pointer-events: none;
    transform: translateY(6px) rotate(-2deg);
    transition: all 0.22s var(--ease-bounce);
    z-index: 10;
}

.recording-indicator.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) rotate(-2deg);
}

.recording-wave {
    display: inline-flex;
    align-items: flex-end;
    gap: 3px;
    height: 16px;
}

.recording-wave span {
    width: 3px;
    border-radius: 2px;
    background: #f87171;
    animation: wave 0.9s ease-in-out infinite;
}

.recording-wave span:nth-child(1) { height: 6px; animation-delay: 0s; }
.recording-wave span:nth-child(2) { height: 14px; animation-delay: 0.12s; }
.recording-wave span:nth-child(3) { height: 9px; animation-delay: 0.24s; }
.recording-wave span:nth-child(4) { height: 11px; animation-delay: 0.36s; }

.recording-text {
    font-size: 13px;
    color: #ffd3d3;
}

.recording-timer {
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    color: #e5e7eb;
}

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); opacity: 0.65; }
    50% { transform: scaleY(1); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .voice-record-btn.is-transcribing { animation: none; }
    .recording-wave span { animation: none; }
}

/* ── 输入附件 ── */
.input-hint {
    font-size: 12px;
    color: var(--ink-muted);
    text-align: center;
    margin-top: var(--spacing-sm);
    font-style: italic;
    font-family: var(--font-hand-en);
}

.input-footer {
    display: flex;
    justify-content: space-between;
    padding: 0 4px;
    margin-top: var(--spacing-xs);
}

.input-footer-end {
    justify-content: flex-end;
}

.char-count {
    font-size: 12px;
    color: var(--ink-muted);
    font-family: var(--font-hand-en);
    transition: color var(--dur-fast);
}

.char-count.warning { color: var(--accent-orange); }
.char-count.limit { color: var(--accent-red); font-weight: 700; }

/* ============ 加载动画 ============ */
.loading-dots {
    display: inline-flex;
    gap: 5px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50% 48% 52% 50%;
    background: var(--accent-blue);
    animation: bounce 1.3s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; background: var(--accent-red); }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; background: var(--accent-orange); }
.loading-dots span:nth-child(3) { background: var(--accent-green); }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0.35); }
    40% { transform: scale(1); }
}

.message-time {
    font-size: 11px;
    color: var(--ink-muted);
    text-align: right;
    margin-top: 6px;
    opacity: 0.85;
    font-family: var(--font-hand-en);
}

.copy-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--paper-bg);
    border: 2px solid var(--ink);
    border-radius: 50% 48% 52% 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ink);
    opacity: 0;
    transform: rotate(8deg);
    transition: all var(--dur-fast) var(--ease-bounce);
    box-shadow: var(--shadow-sm);
}

.message:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: var(--note-yellow);
    transform: rotate(-6deg) scale(1.15);
    box-shadow: var(--shadow-md);
}

.skeleton {
    background: var(--paper-warm);
    border: 1.5px dashed var(--ink-faint);
    animation: skeleton-pulse 1.3s ease-in-out infinite alternate;
    border-radius: var(--rough-sm);
    height: 1em;
    margin-bottom: 10px;
}

.skeleton-text {
    height: 1em;
    margin-bottom: 10px;
    width: 100%;
}

.skeleton-text:last-child,
.skeleton-short {
    width: 60%;
}

@keyframes skeleton-pulse {
    from { opacity: 0.55; }
    to { opacity: 1; }
}

.thinking-status {
    margin-top: 10px;
    font-style: italic;
    font-size: 0.95em;
    color: var(--ink-soft);
    display: flex;
    align-items: center;
    gap: 8px;
}

.message-content.folded {
    max-height: 300px;
    overflow: hidden;
    position: relative;
}

.message-content.folded::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(transparent, var(--note-yellow));
    pointer-events: none;
}

.expand-btn {
    display: block;
    width: 100%;
    margin-top: 8px;
    padding: 6px 12px;
    border: 2px dashed var(--ink-muted);
    background: transparent;
    color: var(--ink-soft);
    font-family: var(--font-body);
    font-size: 13px;
    border-radius: var(--rough-pill);
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-bounce);
}

.expand-btn:hover {
    border-style: solid;
    background: var(--paper-bg);
    color: var(--ink);
}

/* ============ 侧边栏切换（移动端） ============ */
.sidebar-close-btn,
.sidebar-toggle-btn {
    border: 2px solid var(--ink);
    background: var(--paper-bg);
    color: var(--ink);
    border-radius: 50% 48% 52% 50%;
    width: 38px;
    height: 38px;
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--dur-fast) var(--ease-bounce);
}

.sidebar-close-btn:hover,
.sidebar-toggle-btn:hover {
    transform: rotate(90deg);
    background: var(--note-yellow);
}

.sidebar-close-btn {
    margin-left: auto;
    display: none;
}

.sidebar-toggle-btn {
    display: none;
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 30;
}

.sidebar-backdrop {
    display: none;
}

/* ============ 页面级 Loading ============ */
#loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(43, 45, 58, 0.4);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    color: var(--paper-bg);
    font-size: 1.2rem;
    flex-direction: column;
    gap: 20px;
    font-family: var(--font-title);
}

#loading-overlay .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--note-yellow);
    border-top-color: transparent;
    border-radius: 50% 48% 52% 50% / 50% 52% 48% 50%;
    animation: sketch-spin 0.9s linear infinite;
}

@keyframes sketch-spin {
    from { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    to { transform: rotate(360deg) scale(1); }
}

/* ============ 地图/总览卡片 ============ */
.map-container,
.map-details-container {
    margin-top: var(--spacing-lg);
    animation: fadeInUp 0.4s var(--ease-bounce);
}

.map-card,
.map-details-card {
    background: var(--paper-bg);
    border: 2.5px solid var(--ink);
    color: var(--ink);
    padding: var(--spacing-lg);
    border-radius: var(--rough-lg);
    box-shadow: var(--shadow-lg);
    transform: rotate(-0.5deg);
}

.map-card { text-align: center; }

.map-card h3,
.map-details-card h3 {
    margin: 0 0 12px;
    color: var(--ink);
    font-size: 28px;
}

.map-iframe {
    width: 100%;
    height: 500px;
    border: 2px solid var(--ink);
    border-radius: var(--rough-md);
    margin: 15px 0;
    background: var(--paper-bg);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .map-iframe {
        height: 78vh;
        min-height: 620px;
    }
}

.map-link-btn {
    display: inline-block;
    margin-top: 10px;
    background: var(--note-green);
    color: var(--ink);
}

.map-raw-pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    background: var(--paper-warm);
    border: 2px dashed var(--ink-muted);
    padding: 15px;
    border-radius: var(--rough-md);
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 13px;
    color: var(--ink-soft);
}

.map-progress-message {
    max-width: 640px;
    align-self: flex-start;
    background: var(--paper-warm);
    border: 2px dashed var(--ink-muted);
}

.map-progress-title {
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--ink);
}

.map-progress-bar {
    width: 100%;
    height: 14px;
    border: 2px solid var(--ink);
    border-radius: var(--rough-pill);
    background: var(--paper-bg);
    overflow: hidden;
    box-shadow: inset 2px 2px 0 rgba(43, 45, 58, 0.08);
}

.map-progress-fill {
    width: 0%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        var(--note-green) 0 8px,
        var(--note-yellow) 8px 16px
    );
    transition: width 0.4s var(--ease-soft);
}

.map-progress-footer {
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--ink-soft);
    font-size: 13px;
    font-family: var(--font-hand-en);
}

.map-progress-percent {
    color: var(--accent-green);
    font-weight: 700;
    font-size: 15px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px) rotate(-0.5deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotate(-0.5deg);
    }
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        z-index: 50;
        transition: left 0.35s var(--ease-soft);
        box-shadow: var(--shadow-lifted);
    }

    body.sidebar-open .sidebar {
        left: 0;
    }

    body.sidebar-open .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(43, 45, 58, 0.4);
        z-index: 40;
        animation: fadeIn 0.25s ease;
    }

    .sidebar-toggle-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    body.sidebar-open .sidebar-toggle-btn {
        display: none;
    }

    .sidebar-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .main-content {
        padding: 64px var(--spacing-md) var(--spacing-md);
    }

    .message {
        max-width: 92%;
    }

    .recent-sessions-list,
    .view-more-btn,
    .session-info h3 {
        display: none;
    }

    body.sidebar-open .recent-sessions-list,
    body.sidebar-open .view-more-btn,
    body.sidebar-open .session-info h3 {
        display: block;
    }

    body.sidebar-open .recent-sessions-list {
        display: flex;
    }
}

/* ============ 可访问性 ============ */
.btn-confirm:focus-visible,
.btn-secondary:focus-visible,
.btn-danger:focus-visible,
.btn-primary:focus-visible,
.btn-send:focus-visible,
.btn-icon-only:focus-visible,
.view-more-btn:focus-visible,
#message-input:focus-visible,
.voice-toggle-btn:focus-visible,
.voice-record-btn:focus-visible,
.close-btn:focus-visible {
    outline: 3px dashed var(--accent-blue);
    outline-offset: 3px;
}