/* =========================================================
   锯嘴葫芦 · 前端美化增强层 (premium-design.css)
   审美方向：淡墨沉夜 · 古典水墨 × 现代暗色玻璃
   ========================================================= */

/* ── 设计系统 Token ────────────────────────────────────── */
:root {
    /* 主色系 */
    --ink-black:    #0a0b14;
    --ink-deep:     #0d0e1f;
    --ink-mid:      #141630;
    --ink-light:    #1e2246;
    --jade-glow:    #6ae0c8;      /* 翡翠青（主强调色） */
    --jade-dim:     #3dbda4;
    --gold-bright:  #e8c96b;      /* 金箔色（次强调色） */
    --gold-dim:     #a07a30;
    --vermilion:    #d45b5b;      /* 朱砂红 */
    --mist-white:   rgba(255,255,255,0.07);
    --silk-border:  rgba(174, 194, 220, 0.12);
    --silk-glow:    rgba(106, 224, 200, 0.08);

    /* 字体栈 */
    --font-display: 'Ma Shan Zheng', 'KaiTi', cursive;
    --font-body:    'LXGW WenKai Lite', 'LXGW WenKai', 'Noto Serif SC', serif;
    --font-ui:      'Inter', system-ui, sans-serif;

    /* 圆角 */
    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 16px;

    /* 转场 */
    --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── 1. 全局质感升级 ──────────────────────────────────── */

/* 纸质噪点纹理叠加（SVG 内联，无外部依赖） */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    mix-blend-mode: overlay;
}

/* ── 2. 开始画面标题 — 古朴淡墨色 ──────────────── */
/* 不用渐变和闪烁，用推白带淡淡古金暨的生宣纸色，如同线装印刷在宣纸上的毛笔字 */

body, button, [role="button"], [onClick], input[type="range"] {
    /* 移除自定义光标，恢复默认 */
    cursor: default;
}
button, [role="button"], [onClick] {
    cursor: pointer;
}

/* ── 3. 加载界面 (Preloader) 重设计 ─────────────────────── */

/* 覆盖原来的 Preloader */
.preloader-ink-wash {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--ink-black);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 背景水墨晕染 */
.preloader-ink-wash::before {
    content: '';
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse 60% 50% at 25% 40%, rgba(20, 40, 80, 0.6) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 75% 60%, rgba(30, 20, 60, 0.5) 0%, transparent 70%),
        radial-gradient(ellipse 80% 40% at 50% 80%, rgba(10, 30, 50, 0.4) 0%, transparent 80%);
    animation: ink-drift 12s ease-in-out infinite alternate;
    pointer-events: none;
}

@keyframes ink-drift {
    0%   { transform: scale(1) rotate(0deg); }
    33%  { transform: scale(1.05) rotate(1deg); }
    66%  { transform: scale(0.98) rotate(-0.5deg); }
    100% { transform: scale(1.03) rotate(0.8deg); }
}

/* 进度条容器 */
.preloader-progress-wrap {
    position: relative;
    width: 240px;
    margin-top: 1.5rem;
}

.preloader-progress-track {
    width: 100%;
    height: 1px;
    background: rgba(174, 194, 220, 0.15);
    position: relative;
    overflow: visible;
}

.preloader-progress-fill {
    height: 1px;
    background: linear-gradient(to right, var(--jade-dim), var(--jade-glow), var(--gold-bright));
    transition: width 0.4s var(--ease-out-quint);
    position: relative;
}

/* 进度条末端光点 */
.preloader-progress-fill::after {
    content: '';
    position: absolute;
    right: -2px;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--jade-glow);
    box-shadow: 0 0 8px var(--jade-glow), 0 0 16px rgba(106,224,200,0.4);
    animation: glow-pulse 1.5s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
    50%       { opacity: 0.6; transform: translateY(-50%) scale(0.8); }
}

/* 加载文字 */
.preloader-label {
    font-family: var(--font-body);
    color: rgba(174, 194, 220, 0.5);
    font-size: 0.7rem;
    letter-spacing: 0.35em;
    margin-top: 1.2rem;
    text-align: center;
}

/* 标题装饰 */
.preloader-title {
    font-family: var(--font-display);
    font-size: 3rem;
    color: rgba(232, 201, 107, 0.9);
    text-shadow:
        0 0 30px rgba(232,201,107,0.3),
        0 0 60px rgba(106,224,200,0.1);
    letter-spacing: 0.4em;
    animation: title-breathe 3s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes title-breathe {
    0%, 100% { text-shadow: 0 0 20px rgba(232,201,107,0.3), 0 0 50px rgba(106,224,200,0.05); }
    50%       { text-shadow: 0 0 35px rgba(232,201,107,0.5), 0 0 70px rgba(106,224,200,0.15); }
}

/* 装饰线 */
.preloader-deco {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 0.6rem;
    position: relative;
    z-index: 1;
}

.preloader-deco-line {
    width: 50px;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(232,201,107,0.4), transparent);
}

.preloader-deco-diamond {
    width: 5px;
    height: 5px;
    background: rgba(232,201,107,0.6);
    transform: rotate(45deg);
    box-shadow: 0 0 6px rgba(232,201,107,0.4);
}

/* ── 4. 开始画面 (StartScreen) 增强 ─────────────────────── */

/* 开始画面标题 — 古朴淡墨，如线装印刷在宣纸上的毛笔字
   采用轻奢 drop-shadow 提亮度，不用彩虹渐变和闪烁动画 */
.start-title-enhanced {
    font-family: var(--font-display) !important;
    color: rgba(235, 228, 210, 0.92);   /* 冷淡宣纸百，微带满月暗金色调 */
    text-shadow:
        0 0 40px rgba(200, 185, 140, 0.20),   /* 极小的淡金光晔，已暗化至不显眼 */
        0 2px  8px rgba(0, 0, 0, 0.55);        /* 轻阴影增加可读性 */
    filter: none;
    animation: none;
    background: none;
    -webkit-text-fill-color: unset;
}

/* 开始画面渐变叠加 - 更富层次感 */
.start-gradient-enhanced {
    background:
        radial-gradient(ellipse 80% 60% at 50% 100%, rgba(10, 11, 20, 0.97) 0%, transparent 70%),
        radial-gradient(ellipse 60% 40% at 50% 0%, rgba(10, 11, 20, 0.4) 0%, transparent 60%),
        linear-gradient(to top, rgba(10, 11, 20, 1) 0%, rgba(10, 11, 20, 0.6) 30%, transparent 60%) !important;
}

/* 开始按钮 — 水墨玻璃风格 */
.start-btn-ink {
    background: linear-gradient(
        135deg,
        rgba(20, 22, 48, 0.7) 0%,
        rgba(14, 16, 35, 0.5) 100%
    ) !important;
    border: 1px solid rgba(174, 194, 220, 0.18) !important;
    box-shadow:
        0 4px 20px rgba(0,0,0,0.4),
        inset 0 1px 0 rgba(255,255,255,0.06),
        inset 0 0 20px rgba(106,224,200,0.03);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.4s var(--ease-out-quint) !important;
    position: relative;
    overflow: hidden;
}

.start-btn-ink::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(106,224,200,0.06) 50%,
        transparent 100%
    );
    transform: translateX(-100%);
    transition: transform 0.6s var(--ease-out-quint);
}

.start-btn-ink:hover::before {
    transform: translateX(100%);
}

.start-btn-ink:hover {
    background: linear-gradient(
        135deg,
        rgba(25, 30, 65, 0.85) 0%,
        rgba(18, 22, 50, 0.7) 100%
    ) !important;
    border-color: rgba(106, 224, 200, 0.35) !important;
    box-shadow:
        0 8px 32px rgba(0,0,0,0.5),
        0 0 0 1px rgba(106,224,200,0.12),
        inset 0 1px 0 rgba(255,255,255,0.08),
        inset 0 0 30px rgba(106,224,200,0.06) !important;
    transform: translateY(-2px) !important;
}

.start-btn-ink:active {
    transform: translateY(0px) scale(0.98) !important;
    transition-duration: 0.1s !important;
}

/* 开始画面装饰：顶部印章 */
.start-seal {
    position: absolute;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: 0.65rem;
    color: rgba(212, 91, 91, 0.7);
    letter-spacing: 0.3em;
    border: 1px solid rgba(212, 91, 91, 0.3);
    padding: 0.2em 0.7em;
    border-radius: 2px;
    white-space: nowrap;
    z-index: 60;
}

/* 开始画面 — 角落装饰 */
.start-corner-deco {
    position: absolute;
    width: 40px;
    height: 40px;
    pointer-events: none;
}

.start-corner-deco.tl { top: 0.75rem; left: 0.75rem; border-top: 1px solid rgba(232,201,107,0.25); border-left: 1px solid rgba(232,201,107,0.25); }
.start-corner-deco.tr { top: 0.75rem; right: 0.75rem; border-top: 1px solid rgba(232,201,107,0.25); border-right: 1px solid rgba(232,201,107,0.25); }
.start-corner-deco.bl { bottom: 0.75rem; left: 0.75rem; border-bottom: 1px solid rgba(232,201,107,0.25); border-left: 1px solid rgba(232,201,107,0.25); }
.start-corner-deco.br { bottom: 0.75rem; right: 0.75rem; border-bottom: 1px solid rgba(232,201,107,0.25); border-right: 1px solid rgba(232,201,107,0.25); }

/* ── 5. 对话框 (DialogueBox) 增强 ──────────────────────── */

/* 说话人名牌 — 古风标签 */
.speaker-tag-enhanced {
    font-family: var(--font-body) !important;
    font-size: 0.7rem !important;
    letter-spacing: 0.2em;
    padding: 0.2em 0.8em 0.2em 1em !important;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 6px 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

@media (min-width: 768px) {
    .speaker-tag-enhanced {
        font-size: 0.875rem !important;
        padding: 0.25em 1em 0.25em 1.2em !important;
    }
}

@media (min-width: 1024px) {
    .speaker-tag-enhanced {
        font-size: 1.1rem !important;
    }
}

/* 对话框 — 改进玻璃质感 */
.dialogue-glass {
    background: linear-gradient(
        160deg,
        rgba(10, 12, 28, 0.65) 0%,
        rgba(13, 14, 32, 0.55) 100%
    );
    border-color: var(--silk-border) !important;
    box-shadow:
        0 -2px 0 rgba(106,224,200,0.06),
        0 -8px 32px rgba(0,0,0,0.5),
        inset 0 1px 0 rgba(255,255,255,0.04),
        inset 0 0 20px rgba(10,12,28,0.3) !important;
    border-radius: 0px 8px 8px 8px !important;
}

/* 继续提示箭头 — 改为菱形脉冲 */
.next-indicator-diamond {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    width: 8px;
    height: 8px;
    background: var(--jade-glow);
    transform: rotate(45deg);
    opacity: 0;
    animation: diamond-pulse 1.8s ease-in-out infinite;
    pointer-events: none;
}

@media (min-width: 768px) {
    .next-indicator-diamond { bottom: 1rem; right: 1rem; width: 10px; height: 10px; }
}

@keyframes diamond-pulse {
    0%   { opacity: 0; transform: rotate(45deg) scale(0.5); }
    50%  { opacity: 0.7; transform: rotate(45deg) scale(1); }
    100% { opacity: 0; transform: rotate(45deg) scale(0.5) translateY(3px); }
}

/* ── 6. 菜单 (Menu) 增强 ───────────────────────────────── */

.menu-panel-ink {
    background: linear-gradient(
        160deg,
        rgba(12, 14, 30, 0.97) 0%,
        rgba(16, 18, 38, 0.95) 100%
    ) !important;
    border: 1px solid rgba(174, 194, 220, 0.12) !important;
    box-shadow:
        0 0 0 1px rgba(106,224,200,0.05),
        0 30px 80px rgba(0,0,0,0.7),
        0 10px 30px rgba(0,0,0,0.5),
        inset 0 1px 0 rgba(255,255,255,0.04) !important;
    border-radius: 12px !important;
}

/* 菜单标题 */
.menu-title-enhanced {
    font-family: var(--font-display) !important;
    font-size: 1.3rem !important;
    background: linear-gradient(135deg, var(--jade-glow), var(--gold-bright));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.25em;
}

/* 菜单按钮 */
.menu-btn-ink {
    background: linear-gradient(
        135deg,
        rgba(20, 22, 48, 0.6) 0%,
        rgba(14, 16, 35, 0.4) 100%
    ) !important;
    border: 1px solid rgba(174,194,220,0.1) !important;
    border-radius: 6px !important;
    font-family: var(--font-body) !important;
    letter-spacing: 0.15em;
    transition: all 0.3s var(--ease-out-quint) !important;
    position: relative;
    overflow: hidden;
}

.menu-btn-ink::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--jade-glow), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-btn-ink:hover::before {
    opacity: 1;
}

.menu-btn-ink:hover {
    background: linear-gradient(
        135deg,
        rgba(25, 30, 65, 0.8) 0%,
        rgba(18, 22, 50, 0.6) 100%
    ) !important;
    border-color: rgba(106,224,200,0.25) !important;
    transform: translateX(3px) !important;
}

.menu-btn-danger {
    border-color: rgba(180,60,60,0.2) !important;
}

.menu-btn-danger:hover {
    border-color: rgba(212,91,91,0.4) !important;
}

/* 菜单分割线 */
.menu-divider-ink {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(174,194,220,0.1), transparent);
    margin: 0.25rem 0;
}

/* ── 7. 全屏界面 (存档/结局/章节/CG画廊) 增强 ──────────── */

/* 统一全屏容器 — 改用渐变背景而非纯黑 */
.screen-ink-bg {
    background:
        radial-gradient(ellipse 70% 50% at 20% 0%, rgba(15, 20, 50, 0.8) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(20, 15, 45, 0.6) 0%, transparent 60%),
        linear-gradient(170deg, rgba(10, 11, 22, 0.99) 0%, rgba(12, 14, 28, 0.97) 100%) !important;
}

/* 全屏标题增强 */
.screen-title-ink {
    font-family: var(--font-display) !important;
    letter-spacing: 0.3em !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(232,201,107,0.8));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 全屏关闭按钮 */
.close-btn-ink {
    background: rgba(20, 22, 48, 0.6) !important;
    border: 1px solid rgba(174,194,220,0.1) !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
}

.close-btn-ink:hover {
    background: rgba(30, 35, 70, 0.9) !important;
    border-color: rgba(106,224,200,0.3) !important;
    box-shadow: 0 0 12px rgba(106,224,200,0.1);
}

/* 分割线 — 金箔渐变 */
.divider-gold {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(232,201,107,0.25), rgba(106,224,200,0.15), transparent);
}

/* ── 8. 存档卡片增强 ─────────────────────────────────────── */

.save-card-ink {
    background: linear-gradient(
        145deg,
        rgba(14, 16, 35, 0.9) 0%,
        rgba(10, 12, 28, 0.8) 100%
    );
    border: 1px solid rgba(174,194,220,0.1);
    transition: all 0.4s var(--ease-out-quint) !important;
}

.save-card-ink:hover {
    border-color: rgba(106,224,200,0.3) !important;
    box-shadow:
        0 0 0 1px rgba(106,224,200,0.08),
        0 20px 50px rgba(0,0,0,0.5) !important;
    transform: translateY(-2px) !important;
}

/* 存档序号 */
.save-id-tag {
    font-family: var(--font-ui);
    font-size: 0.6rem;
    color: rgba(106,224,200,0.5);
    letter-spacing: 0.25em;
    font-variant-numeric: tabular-nums;
}

/* 空存档点击提示 */
.save-empty-hint {
    border: 1px dashed rgba(106,224,200,0.15);
    color: rgba(106,224,200,0.4);
    font-family: var(--font-body);
    letter-spacing: 0.15em;
}

/* ── 9. 结局卡片增强 ─────────────────────────────────────── */

.ending-card-ink {
    background: linear-gradient(
        145deg,
        rgba(14, 16, 35, 0.85) 0%,
        rgba(10, 12, 28, 0.7) 100%
    );
    border: 1px solid rgba(174,194,220,0.1);
    transition: all 0.4s var(--ease-out-quint) !important;
}

.ending-card-ink:hover {
    border-color: rgba(232,201,107,0.3) !important;
    box-shadow:
        0 0 0 1px rgba(232,201,107,0.06),
        0 20px 50px rgba(0,0,0,0.5) !important;
    transform: translateY(-2px) !important;
}

/* ── 10. 选项界面增强 ────────────────────────────────────── */

/* 选项问题文字 */
.choice-question-ink {
    font-family: var(--font-body) !important;
    letter-spacing: 0.2em;
    text-shadow: 0 0 30px rgba(255,255,255,0.15), 0 2px 8px rgba(0,0,0,0.8);
}

/* 选项按钮增强 */
.choice-btn-ink {
    background: linear-gradient(
        135deg,
        rgba(14, 16, 35, 0.6) 0%,
        rgba(10, 12, 28, 0.45) 100%
    );
    border-color: rgba(174,194,220,0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.choice-btn:hover .choice-btn-ink {
    background: linear-gradient(
        135deg,
        rgba(20, 25, 60, 0.8) 0%,
        rgba(15, 18, 45, 0.65) 100%
    );
    border-color: rgba(106,224,200,0.25);
    box-shadow:
        0 8px 32px rgba(0,0,0,0.4),
        0 0 0 1px rgba(106,224,200,0.08),
        inset 0 1px 0 rgba(255,255,255,0.04);
}

/* 选项高亮竖线 — 改为翡翠青 */
.choice-btn:hover .choice-accent-bar,
.choice-btn:hover .choice-accent-bar-right {
    background: linear-gradient(to bottom, transparent, var(--jade-glow), transparent) !important;
    box-shadow: 0 0 10px rgba(106,224,200,0.3) !important;
}

/* ── 11. 历史记录增强 ────────────────────────────────────── */

.history-entry-ink {
    border-left: 2px solid transparent;
    transition: all 0.3s var(--ease-out-quint);
    border-radius: 0 4px 4px 0;
}

.history-entry-ink:hover {
    background: rgba(20, 22, 48, 0.6) !important;
    border-left-color: rgba(106,224,200,0.5) !important;
}

/* 回滚提示胶囊 */
.rollback-pill-ink {
    background: rgba(10, 12, 28, 0.95);
    border: 1px solid rgba(106,224,200,0.25);
    color: var(--jade-glow);
    font-family: var(--font-body);
}

/* ── 12. 设置界面增强 ────────────────────────────────────── */

/* Range 输入美化 — webkit */
input[type="range"]::-webkit-slider-runnable-track {
    height: 2px;
    background: linear-gradient(to right, rgba(174,194,220,0.1), rgba(174,194,220,0.3));
    border-radius: 99px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--jade-glow);
    box-shadow: 0 0 8px rgba(106,224,200,0.4), 0 0 0 2px rgba(10,12,28,0.8);
    margin-top: -6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

input[type="range"]:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    box-shadow: 0 0 12px rgba(106,224,200,0.6), 0 0 0 2px rgba(10,12,28,0.8);
}

/* ── 13. 按钮通用 hover 光效升级 ────────────────────────── */

.btn-bloom:hover {
    text-shadow: 0 0 12px rgba(106, 224, 200, 0.5) !important;
}

.btn-bloom:hover svg {
    filter: drop-shadow(0 0 5px rgba(106,224,200,0.5)) !important;
}

/* ── 14. 结局画面卡片 ────────────────────────────────────── */

.ending-card {
    background: linear-gradient(
        135deg,
        rgba(12, 14, 30, 0.6) 0%,
        rgba(8, 10, 22, 0.4) 100%
    ) !important;
    border: 1px solid rgba(232,201,107,0.12) !important;
    box-shadow:
        0 0 0 1px rgba(232,201,107,0.05),
        0 30px 70px rgba(0,0,0,0.6),
        inset 0 1px 0 rgba(232,201,107,0.06) !important;
    border-radius: 4px !important;
}

/* ── 15. 画廊预览悬停特效 ────────────────────────────────── */

.gallery-card-wrap {
    position: relative;
}

.gallery-card-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(174,194,220,0.15);
    border-radius: inherit;
    pointer-events: none;
    transition: border-color 0.3s ease;
}

.gallery-card-wrap:hover::after {
    border-color: rgba(212,91,91,0.4);
    box-shadow: inset 0 0 20px rgba(212,91,91,0.05);
}

/* ── 16. 滚动条纯净化 ──────────────────────────────────── */

.custom-scroll::-webkit-scrollbar {
    width: 3px !important;
}

.custom-scroll::-webkit-scrollbar-track {
    background: transparent !important;
}

.custom-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, transparent, rgba(106,224,200,0.25) 50%, transparent) !important;
    border-radius: 3px !important;
    border: none !important;
    background-clip: unset !important;
}

/* ── 17. 进入动画增强 ──────────────────────────────────── */

@keyframes ink-fade-up {
    from {
        opacity: 0;
        transform: translateY(16px);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

.ink-fade-up {
    animation: ink-fade-up 0.7s var(--ease-out-quint) forwards;
}

@keyframes ink-scale-in {
    from {
        opacity: 0;
        transform: scale(0.94);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.ink-scale-in {
    animation: ink-scale-in 0.5s var(--ease-out-quint) forwards;
}

/* ── 18. 竖向装饰条（全屏界面侧边） ────────────────────── */

.screen-side-deco-left,
.screen-side-deco-right {
    position: absolute;
    top: 5%;
    bottom: 5%;
    width: 1px;
    pointer-events: none;
    z-index: 0;
}

.screen-side-deco-left {
    left: 0;
    background: linear-gradient(to bottom, transparent, rgba(232,201,107,0.15), transparent);
}

.screen-side-deco-right {
    right: 0;
    background: linear-gradient(to bottom, transparent, rgba(106,224,200,0.12), transparent);
}

/* ── 19. 触摸设备优化 ──────────────────────────────────── */

@media (hover: none) and (pointer: coarse) {
    body, button, [role="button"] {
        cursor: auto;
    }

    .choice-btn:active .choice-btn-ink {
        background: linear-gradient(
            135deg,
            rgba(20, 25, 60, 0.9) 0%,
            rgba(15, 18, 45, 0.75) 100%
        ) !important;
        border-color: rgba(106,224,200,0.35) !important;
    }
}

/* ── 20. 加载字幕脉冲动画 ──────────────────────────────── */

@keyframes text-pulse-subtle {
    0%, 100% { opacity: 0.45; }
    50%       { opacity: 0.7; }
}

.preloader-label {
    animation: text-pulse-subtle 2s ease-in-out infinite;
}