/* ============================================================
   江苏财会职业学院 · 2026 级新生服务大厅
   设计语言：青春活力 · 暖色系渐变 · 立体按钮 · 光晕颗粒
   ============================================================ */

:root {
    /* ---------- 青春活力主色板 ---------- */
    --orange:     #ff7a59;
    --yellow:     #ffb84d;
    --pink:       #ff6f91;
    --purple:     #b47cff;
    --blue:       #5fb9ff;
    --teal:       #4ec9b0;
    --green:      #7de2b4;

    /* 主渐变（橙 → 黄 → 紫粉，顶部 / 标题使用） */
    --grad-main: linear-gradient(135deg, #ff7a59 0%, #ffb84d 45%, #ff6f91 100%);
    --grad-warm: linear-gradient(135deg, #ffb84d 0%, #ff7a59 100%);
    --grad-cool: linear-gradient(135deg, #b47cff 0%, #5fb9ff 100%);
    --grad-happy: linear-gradient(135deg, #ff7a59 0%, #b47cff 100%);

    /* ---------- 基础背景 ---------- */
    --bg: #fff6ee;           /* 暖米色 */
    --bg-soft: #fffaf4;
    --bg-muted: #ffe7d6;

    --text-primary: #2b1d1a; /* 深棕 */
    --text-secondary: #5a453d;
    --text-tertiary: #9a7f6e;
    --text-muted: #b8a094;

    --border: #f4d9c2;
    --border-strong: #e8bfa2;
    --border-subtle: #fcefe2;

    /* ---------- 排版：苹方 / 系统字体 ---------- */
    --text-xs: 12px;
    --text-sm: 13px;
    --text-base: 14px;
    --text-lg: 16px;
    --text-xl: 18px;
    --text-2xl: 22px;
    --text-3xl: 28px;
    --text-title: 36px;

    /* ---------- 间距 ---------- */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 32px;
    --space-8: 40px;

    /* ---------- 圆角 ---------- */
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;

    /* ---------- 立体阴影（多层，用于模拟 3D 按钮） ---------- */
    --shadow-soft: 0 6px 20px -6px rgba(255, 122, 89, 0.25);
    --shadow-card: 0 10px 30px -10px rgba(255, 122, 89, 0.22),
                   0 2px 8px rgba(255, 184, 77, 0.15);
    --shadow-pop:  0 14px 36px -10px rgba(255, 111, 145, 0.35),
                   0 4px 10px rgba(180, 124, 255, 0.2);
    --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.8),
                    inset 0 -2px 4px rgba(0, 0, 0, 0.08);

    /* ---------- 缓动 ---------- */
    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    color: var(--text-primary);
    line-height: 1.55;
    font-size: var(--text-base);
    min-height: 100vh;
    padding-top: calc(60px + env(safe-area-inset-top, 0));
    overflow-x: hidden;
    letter-spacing: -0.01em;

    /* 渐变 + 微颗粒背景 */
    background-color: var(--bg);
    background-image:
        radial-gradient(circle at 20% 0%, rgba(255, 184, 77, 0.28) 0%, transparent 45%),
        radial-gradient(circle at 80% 10%, rgba(180, 124, 255, 0.25) 0%, transparent 40%),
        radial-gradient(circle at 50% 100%, rgba(255, 111, 145, 0.22) 0%, transparent 55%),
        linear-gradient(180deg, #fff6ee 0%, #fffaf4 50%, #fff3e3 100%);
    background-attachment: fixed;
    position: relative;
}

/* 微颗粒覆盖层（不挡住交互） */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    background-image:
        radial-gradient(rgba(255, 122, 89, 0.08) 1px, transparent 1px),
        radial-gradient(rgba(180, 124, 255, 0.07) 1px, transparent 1px);
    background-size: 40px 40px, 60px 60px;
    background-position: 0 0, 20px 20px;
}

img { max-width: 100%; height: auto; display: block; }

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ============================================================
   顶部品牌栏（彩色小胶囊）
   ============================================================ */
.brand-bar {
    position: relative;
    padding: 14px 20px 0;
    z-index: 2;
}

.brand-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.brand-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
}

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    object-fit: contain;
    background: #fff;
    box-shadow: 0 4px 14px rgba(255, 122, 89, 0.25), inset 0 1px 0 #fff;
    flex-shrink: 0;
    padding: 4px;
    transition: transform 0.35s var(--ease-out);
}

.brand-bar:hover .brand-logo {
    transform: scale(1.08) rotate(-3deg);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }

.brand-cn {
    font-size: var(--text-lg);
    font-weight: 700;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-en {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 0.18em;
    margin-top: 2px;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-right { flex-shrink: 0; }

.brand-slogan {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--grad-main);
    color: #fff;
    box-shadow: 0 6px 16px -4px rgba(255, 122, 89, 0.5), var(--shadow-inset);
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.brand-bar:hover .brand-slogan {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px -4px rgba(255, 122, 89, 0.55), var(--shadow-inset);
}

/* ============================================================
   导航栏（磨砂毛玻璃 + 彩色顶条）
   ============================================================ */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: calc(60px + env(safe-area-inset-top, 0));
    padding-top: env(safe-area-inset-top, 0);
    background: rgba(255, 246, 238, 0.8);
    backdrop-filter: saturate(160%) blur(20px);
    -webkit-backdrop-filter: saturate(160%) blur(20px);
    border-bottom: 1px solid rgba(255, 122, 89, 0.12);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: var(--space-3);
    padding-right: var(--space-3);
    z-index: 100;
    box-shadow: 0 8px 28px -16px rgba(255, 122, 89, 0.3);
}

.title-group {
    flex: 1;
    text-align: center;
}

.main-title {
    font-size: var(--text-base);
    font-weight: 700;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: 0.01em;
}

.sub-title {
    font-size: 10px;
    color: var(--text-tertiary);
    letter-spacing: 0.2em;
    margin-top: 2px;
    text-transform: uppercase;
}

.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: #fff;
    box-shadow: 0 4px 12px -2px rgba(255, 122, 89, 0.22),
                inset 0 1px 0 #fff;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.icon-btn svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
}

.icon-btn:hover {
    background: var(--grad-warm);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 18px -4px rgba(255, 122, 89, 0.45);
}

.icon-btn:active { transform: translateY(0) scale(0.96); }

/* ============================================================
   Banner：大标题 + 彩色光晕
   ============================================================ */
.banner {
    position: relative;
    padding: 56px 24px 48px;
    overflow: hidden;
    z-index: 2;
}

/* 顶部背景光晕 */
.banner::before {
    content: "";
    position: absolute;
    top: -40%;
    left: -10%;
    width: 120%;
    height: 160%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 122, 89, 0.35) 0%, transparent 45%),
        radial-gradient(circle at 70% 20%, rgba(180, 124, 255, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(255, 184, 77, 0.3) 0%, transparent 50%);
    filter: blur(10px);
    z-index: 0;
    pointer-events: none;
}

.banner-content {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.banner-hero-row {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 18px;
    text-align: left;
    margin-bottom: 20px;
}

.banner-hero-logo {
    width: auto;
    height: 74px;
    max-width: 90px;
    object-fit: contain;
    flex-shrink: 0;
    background: #fff;
    padding: 10px;
    border-radius: 22px;
    box-shadow: 0 14px 30px -10px rgba(255, 122, 89, 0.4),
                inset 0 1px 0 #fff;
    animation: logoBob 3.6s ease-in-out infinite;
}

@keyframes logoBob {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50%      { transform: translateY(-6px) rotate(2deg); }
}

.banner-hero-text { position: relative; z-index: 2; }

.main-heading {
    font-size: var(--text-title);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ff7a59 0%, #ff4f8b 50%, #b47cff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 8px;
    text-shadow: 0 2px 18px rgba(255, 122, 89, 0.08);
}

.sub-heading {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    letter-spacing: 0.01em;
    font-weight: 500;
}

.banner-meta {
    margin-top: 28px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    line-height: 1.8;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    justify-content: center;
}

.banner-meta .meta-item {
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

.banner-meta .meta-item::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--grad-main);
    box-shadow: 0 0 8px rgba(255, 122, 89, 0.6);
    display: inline-block;
}

.banner-meta .meta-sep { display: none; }

/* ============================================================
   主容器
   ============================================================ */
.main-content {
    position: relative;
    z-index: 2;
    padding: 0 var(--space-5) var(--space-8);
    max-width: 100%;
}

.container {
    max-width: 720px;
    margin: 0 auto;
}

/* ============================================================
   倒计时：糖果卡
   ============================================================ */
.countdown-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-5);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
}

/* 角落柔光 */
.countdown-card::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.45) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.countdown-card::after {
    content: "";
    position: absolute;
    bottom: -40%;
    left: -20%;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(180, 124, 255, 0.35) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.countdown-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 1px dashed var(--border);
    flex-wrap: wrap;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.countdown-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    background: var(--grad-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px -4px rgba(255, 122, 89, 0.45),
                inset 0 1px 0 rgba(255,255,255,0.5);
}

.countdown-icon svg {
    width: 20px;
    height: 20px;
    stroke: #fff;
    fill: none;
    stroke-width: 1.6;
    stroke-linecap: round;
}

.countdown-title {
    flex: 1;
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.countdown-date {
    font-size: var(--text-xs);
    font-weight: 700;
    color: #fff;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--grad-happy);
    box-shadow: 0 6px 14px -4px rgba(180, 124, 255, 0.5),
                inset 0 1px 0 rgba(255,255,255,0.5);
    letter-spacing: 0.05em;
}

.countdown-timer {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 8px;
    flex-wrap: nowrap;
    margin-top: var(--space-3);
    position: relative;
    z-index: 2;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 14px 6px;
    background: var(--grad-main);
    color: #fff;
    border-radius: 18px;
    position: relative;
    min-width: 0;
    box-shadow: 0 10px 22px -6px rgba(255, 122, 89, 0.55),
                inset 0 1px 0 rgba(255,255,255,0.5),
                inset 0 -3px 6px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.countdown-item:nth-child(3) { background: var(--grad-happy); box-shadow: 0 10px 22px -6px rgba(180,124,255,0.55), inset 0 1px 0 rgba(255,255,255,0.5), inset 0 -3px 6px rgba(0,0,0,0.08); }
.countdown-item:nth-child(5) { background: linear-gradient(135deg,#5fb9ff 0%,#4ec9b0 100%); box-shadow: 0 10px 22px -6px rgba(95,185,255,0.55), inset 0 1px 0 rgba(255,255,255,0.5), inset 0 -3px 6px rgba(0,0,0,0.08); }

.countdown-item:hover { transform: translateY(-4px); }

.countdown-number {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
    color: #fff;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
    text-shadow: 0 1px 0 rgba(255,255,255,0.5);
}

.countdown-label {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.95);
    margin-top: 6px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
}

.countdown-separator {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 700;
    color: var(--orange);
    padding: 0 2px;
    animation: pulseDot 1.2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: translateY(0); }
    50%      { opacity: 0.4; transform: translateY(-2px); }
}

/* 数字变化闪烁 */
.countdown-item[data-flash] { animation: numberPop 0.5s var(--ease-out); }

@keyframes numberPop {
    0% { transform: scale(1); }
    40% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

/* ============================================================
   公告条：糖果色渐变底
   ============================================================ */
.notice-bar {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: 18px 20px;
    background: linear-gradient(135deg, #fff8f1 0%, #ffe7d6 100%);
    border-radius: var(--radius);
    margin-bottom: var(--space-6);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.75;
}

.notice-bar::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 5px;
    background: var(--grad-main);
}

.speaker-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: #fff;
    color: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(255,122,89,0.25), inset 0 1px 0 #fff;
    padding-top: 0;
    animation: speakerPop 2.2s ease-in-out infinite;
}

@keyframes speakerPop {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.speaker-icon svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
}

.notice-text strong {
    color: var(--text-primary);
    font-weight: 700;
    background: linear-gradient(90deg, #ff7a59, #ff4f8b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ============================================================
   快速入口宫格：彩色玻璃卡
   ============================================================ */
.quick-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: var(--space-7);
    padding: 18px 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.quick-nav::after {
    content: "";
    position: absolute;
    top: -50%; right: -30%;
    width: 260px; height: 260px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.25) 0%, transparent 60%);
    pointer-events: none;
}

.quick-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-2);
    padding: 14px 4px 12px;
    border-radius: 18px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
    cursor: pointer;
    position: relative;
    background: #fff;
    border: 1px solid transparent;
}

.quick-nav-item:hover {
    transform: translateY(-4px);
    background: linear-gradient(180deg, #fff 0%, #fff4e8 100%);
    box-shadow: 0 10px 22px -8px rgba(255, 122, 89, 0.3);
    border-color: var(--border);
}

.quick-nav-item:active { transform: translateY(-1px) scale(0.97); }

.quick-nav-item .icon {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: 0 auto 2px;
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.quick-nav-item .icon svg {
    width: 24px;
    height: 24px;
    stroke: #fff;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
}

/* 五个不同彩色按钮 */
.quick-nav-item:nth-child(1) .icon { background: var(--grad-main); box-shadow: 0 8px 16px -4px rgba(255,122,89,0.55), inset 0 1px 0 rgba(255,255,255,0.5); }
.quick-nav-item:nth-child(2) .icon { background: linear-gradient(135deg,#b47cff,#5fb9ff); box-shadow: 0 8px 16px -4px rgba(95,185,255,0.5), inset 0 1px 0 rgba(255,255,255,0.5); }
.quick-nav-item:nth-child(3) .icon { background: linear-gradient(135deg,#4ec9b0,#7de2b4); box-shadow: 0 8px 16px -4px rgba(78,201,176,0.5), inset 0 1px 0 rgba(255,255,255,0.5); }
.quick-nav-item:nth-child(4) .icon { background: linear-gradient(135deg,#ff6f91,#ff7a59); box-shadow: 0 8px 16px -4px rgba(255,111,145,0.5), inset 0 1px 0 rgba(255,255,255,0.5); }
.quick-nav-item:nth-child(5) .icon { background: linear-gradient(135deg,#ffb84d,#ff7a59); box-shadow: 0 8px 16px -4px rgba(255,184,77,0.5), inset 0 1px 0 rgba(255,255,255,0.5); }

.quick-nav-item:hover .icon { transform: scale(1.08) rotate(-4deg); }

.quick-nav-item .label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.01em;
    text-align: center;
    line-height: 1.25;
}

/* ============================================================
   通用卡片（彩色玻璃 + 立体边 + 装饰点缀）
   ============================================================ */
.card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: var(--space-7) var(--space-6);
    margin-bottom: var(--space-6);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}

.card::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -20%;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.3) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 42px -10px rgba(255, 122, 89, 0.25),
                0 4px 10px rgba(255, 184, 77, 0.15);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 2px dashed var(--border);
    gap: var(--space-3);
    position: relative;
    z-index: 2;
}

.card-title-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 0;
    flex: 1;
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--grad-happy);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 16px -4px rgba(180, 124, 255, 0.5),
                inset 0 1px 0 rgba(255,255,255,0.5);
}

.card-icon svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.6;
    stroke-linecap: round;
}

.text-group { min-width: 0; flex: 1; }

.card-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.card-subtitle {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    letter-spacing: 0.02em;
}

.card-status {
    font-size: var(--text-xs);
    font-weight: 700;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--grad-warm);
    color: #fff;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.05em;
    box-shadow: 0 6px 14px -4px rgba(255, 122, 89, 0.5),
                inset 0 1px 0 rgba(255,255,255,0.4);
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.card-status.hot { background: var(--grad-main); box-shadow: 0 8px 18px -4px rgba(255,122,89,0.55); }
.card-status.new { background: var(--grad-cool); box-shadow: 0 8px 18px -4px rgba(95,185,255,0.5); }

.card-status:hover { transform: translateY(-2px); }

/* ============================================================
   功能入口网格（8 大功能）—— 大立体彩色图标
   ============================================================ */
.grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    position: relative;
    z-index: 2;
}

.grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    padding: 14px 8px 12px;
    border-radius: 18px;
    color: inherit;
    transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.9);
    background: #fff;
    box-shadow: 0 5px 12px -4px rgba(255, 122, 89, 0.18),
                inset 0 1px 0 rgba(255,255,255,0.9);
}

.grid-item::before {
    /* 顶部柔光层，让色彩更"糖果" */
    content: "";
    position: absolute;
    top: -40%;
    left: -20%;
    width: 160%;
    height: 80%;
    background: radial-gradient(circle, rgba(255,255,255,0.7) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.grid-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 34px -6px rgba(255, 122, 89, 0.35),
                inset 0 1px 0 rgba(255,255,255,0.9);
    border-color: transparent;
}

.grid-item:active { transform: translateY(-2px) scale(0.97); }

.icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: 0 auto 10px;
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
    z-index: 2;
}

.icon-wrapper svg {
    width: 22px;
    height: 22px;
    stroke: #fff;
    fill: #fff;
    stroke-width: 1.6;
    stroke-linecap: round;
}

/* 8 个图标 —— 按顺序用不同渐变（青春糖果色） */
.grid-item:nth-child(1) .icon-wrapper { background: var(--grad-main); box-shadow: 0 8px 18px -6px rgba(255,122,89,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(2) .icon-wrapper { background: var(--grad-happy); box-shadow: 0 8px 18px -6px rgba(180,124,255,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(3) .icon-wrapper { background: linear-gradient(135deg,#5fb9ff 0%,#4ec9b0 100%); box-shadow: 0 8px 18px -6px rgba(95,185,255,0.5), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(4) .icon-wrapper { background: linear-gradient(135deg,#ff6f91 0%,#ffb84d 100%); box-shadow: 0 8px 18px -6px rgba(255,111,145,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(5) .icon-wrapper { background: linear-gradient(135deg,#7de2b4 0%,#5fb9ff 100%); box-shadow: 0 8px 18px -6px rgba(125,226,180,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(6) .icon-wrapper { background: linear-gradient(135deg,#ffb84d 0%,#ff7a59 100%); box-shadow: 0 8px 18px -6px rgba(255,184,77,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(7) .icon-wrapper { background: linear-gradient(135deg,#b47cff 0%,#ff6f91 100%); box-shadow: 0 8px 18px -6px rgba(180,124,255,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.grid-item:nth-child(8) .icon-wrapper { background: linear-gradient(135deg,#ff7a59 0%,#ffd36e 100%); box-shadow: 0 8px 18px -6px rgba(255,122,89,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }

/* 明确类名 —— 优先于 nth-child，可固定特定图标颜色 */
.icon-wrapper.color-orange { background: var(--grad-main) !important; box-shadow: 0 8px 18px -6px rgba(255,122,89,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-red    { background: linear-gradient(135deg,#ff5470 0%,#ff7a59 100%) !important; box-shadow: 0 8px 18px -6px rgba(255,84,112,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-purple { background: linear-gradient(135deg,#b47cff 0%,#ff6f91 100%) !important; box-shadow: 0 8px 18px -6px rgba(180,124,255,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-blue   { background: linear-gradient(135deg,#5fb9ff 0%,#4ec9b0 100%) !important; box-shadow: 0 8px 18px -6px rgba(95,185,255,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-teal   { background: linear-gradient(135deg,#4ec9b0 0%,#7de2b4 100%) !important; box-shadow: 0 8px 18px -6px rgba(78,201,176,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-green  { background: linear-gradient(135deg,#7de2b4 0%,#5fb9ff 100%) !important; box-shadow: 0 8px 18px -6px rgba(125,226,180,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }
.icon-wrapper.color-blue-red { background: linear-gradient(135deg,#ff6f91 0%,#b47cff 100%) !important; box-shadow: 0 8px 18px -6px rgba(255,111,145,0.55), inset 0 1px 0 rgba(255,255,255,0.55); }

.grid-item:hover .icon-wrapper {
    transform: scale(1.08) translateY(-1px) rotate(-2deg);
}

.item-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.3;
    margin: 0 auto;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 2;
}

/* 徽章 */
.badge {
    position: absolute;
    top: -5px;
    right: -3px;
    font-size: 9px;
    font-weight: 800;
    padding: 3px 8px;
    color: #fff;
    border-radius: 999px;
    letter-spacing: 0.06em;
    white-space: nowrap;
    background: var(--grad-main);
    box-shadow: 0 3px 8px rgba(255,122,89,0.4),
                inset 0 1px 0 rgba(255,255,255,0.6);
    animation: badgeBob 2.6s ease-in-out infinite;
}

@keyframes badgeBob {
    0%, 100% { transform: translateY(0) rotate(-4deg); }
    50%      { transform: translateY(-3px) rotate(4deg); }
}

.badge.green   { background: linear-gradient(135deg,#4ec9b0,#7de2b4); box-shadow: 0 4px 10px rgba(78,201,176,0.4), inset 0 1px 0 rgba(255,255,255,0.6); }
.badge.blue    { background: linear-gradient(135deg,#5fb9ff,#4ec9b0); box-shadow: 0 4px 10px rgba(95,185,255,0.4), inset 0 1px 0 rgba(255,255,255,0.6); }
.badge.purple  { background: linear-gradient(135deg,#b47cff,#5fb9ff); box-shadow: 0 4px 10px rgba(180,124,255,0.4), inset 0 1px 0 rgba(255,255,255,0.6); }
.badge.orange  { background: linear-gradient(135deg,#ffb84d,#ff7a59); box-shadow: 0 4px 10px rgba(255,184,77,0.4), inset 0 1px 0 rgba(255,255,255,0.6); }
.badge.orange-red { background: linear-gradient(135deg,#ff7a59,#ff5470); box-shadow: 0 4px 10px rgba(255,84,112,0.4), inset 0 1px 0 rgba(255,255,255,0.6); }
.badge.blue-red { background: linear-gradient(135deg,#ff6f91,#b47cff); box-shadow: 0 4px 10px rgba(180,124,255,0.45), inset 0 1px 0 rgba(255,255,255,0.6); }

/* ============================================================
   wifi-intro 大介绍卡（电信合作）：紫粉双色带
   ============================================================ */
.wifi-intro {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
    padding: 22px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, #fff5ed 0%, #ffecee 100%);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    z-index: 2;
}

.wifi-intro::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 7px;
    background: linear-gradient(180deg, #ff7a59, #b47cff, #5fb9ff);
}

.wifi-intro-left { flex: 1 1 280px; padding-left: 10px; }

.wifi-flag {
    display: inline-block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #fff;
    background: var(--grad-main);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 10px;
    box-shadow: 0 6px 14px -4px rgba(255, 122, 89, 0.45),
                inset 0 1px 0 rgba(255,255,255,0.5);
}

.wifi-title-line {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 6px;
    background: linear-gradient(135deg, #ff7a59, #b47cff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.wifi-desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

.wifi-intro-right {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
    min-width: 160px;
}

.wifi-fact {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 12px 16px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 6px 16px -4px rgba(255, 122, 89, 0.25),
                inset 0 1px 0 rgba(255,255,255,0.9);
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.wifi-fact:hover { transform: translateY(-2px); }

.wifi-fact-num {
    font-size: 22px;
    font-weight: 800;
    color: var(--orange);
    letter-spacing: -0.01em;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.wifi-fact:nth-child(2) .wifi-fact-num { background: linear-gradient(135deg,#b47cff,#ff6f91); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.wifi-fact:nth-child(3) .wifi-fact-num { background: linear-gradient(135deg,#5fb9ff,#4ec9b0); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.wifi-fact-unit {
    font-size: 12px;
    color: var(--text-tertiary);
    letter-spacing: 0.08em;
    font-weight: 600;
    text-transform: uppercase;
}

/* 兼容旧变量 */
.wifi-card-title, .wifi-card-icon, .wifi-card-status,
.wifi-fact-num-blue, .wifi-fact-num-red,
.wifi-flag-blue-red, .wifi-title-blue, .wifi-intro-blue-red { /* 保留选择器列表 */ }

/* 中国电信品牌图片 */
.wifi-brand-img {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 20px;
    background: linear-gradient(135deg, #fff 0%, #fff5ed 100%);
    border-radius: 20px;
    box-shadow: 0 8px 20px -6px rgba(255, 122, 89, 0.35),
                inset 0 1px 0 rgba(255, 255, 255, 0.95);
    margin-bottom: 4px;
    border: 1px solid rgba(255, 122, 89, 0.15);
}

.wifi-brand-img img {
    max-width: 130px;
    max-height: 44px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

/* ============================================================
   新闻列表：立体悬停卡
   ============================================================ */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 2;
}

.news-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 14px 18px;
    border-radius: 16px;
    cursor: pointer;
    transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), padding 0.3s var(--ease-out);
    position: relative;
    border: 1px solid transparent;
}

.news-item:hover {
    transform: translateX(4px);
    background: linear-gradient(90deg, #fff8f1 0%, #fff 80%);
    box-shadow: 0 8px 18px -8px rgba(255,122,89,0.3);
    border-color: var(--border);
}

.tag-news {
    font-size: 11px;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 999px;
    color: #fff;
    letter-spacing: 0.08em;
    flex-shrink: 0;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.4);
}

.tag-news.hot    { background: var(--grad-main); box-shadow: 0 4px 10px rgba(255,122,89,0.4), inset 0 1px 0 rgba(255,255,255,0.4); }
.tag-news.new    { background: var(--grad-cool); box-shadow: 0 4px 10px rgba(95,185,255,0.35), inset 0 1px 0 rgba(255,255,255,0.4); }
.tag-news.notice { background: linear-gradient(135deg,#7de2b4,#4ec9b0); box-shadow: 0 4px 10px rgba(78,201,176,0.35), inset 0 1px 0 rgba(255,255,255,0.4); }

.news-title {
    flex: 1;
    font-size: var(--text-base);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.news-date {
    font-size: var(--text-xs);
    color: var(--text-muted);
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.news-arrow {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    background: var(--grad-warm);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(255,184,77,0.4), inset 0 1px 0 rgba(255,255,255,0.4);
    transition: transform 0.3s var(--ease-out);
}

.news-item:hover .news-arrow { transform: translateX(4px); }

/* ============================================================
   FAQ：彩色卡片展开
   ============================================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    z-index: 2;
}

.faq-item {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    transition: box-shadow 0.3s var(--ease-out),
                transform 0.3s var(--ease-out),
                background 0.3s var(--ease-out);
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px -6px rgba(255,122,89,0.2);
}

.faq-item:hover { box-shadow: 0 12px 24px -8px rgba(255,122,89,0.35); transform: translateY(-2px); }

.faq-item.open {
    background: linear-gradient(135deg, #fff8f1 0%, #fff 100%);
    box-shadow: 0 14px 30px -8px rgba(255,122,89,0.4);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 16px 18px;
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: 0.01em;
}

.faq-q-label {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    background: var(--grad-main);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0;
    box-shadow: 0 4px 10px rgba(255,122,89,0.4),
                inset 0 1px 0 rgba(255,255,255,0.5);
    transition: transform 0.3s var(--ease-out);
}

.faq-item:hover .faq-q-label { transform: scale(1.1) rotate(-4deg); }

.faq-toggle {
    width: 30px;
    height: 30px;
    border-radius: 10px;
    background: var(--grad-warm);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(255, 184, 77, 0.4), inset 0 1px 0 rgba(255,255,255,0.5);
}

.faq-toggle svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    stroke-linecap: round;
}

.faq-item.open .faq-toggle {
    transform: rotate(180deg);
    background: var(--grad-happy);
    box-shadow: 0 6px 14px rgba(180, 124, 255, 0.45);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease-out),
                padding 0.5s var(--ease-out),
                opacity 0.5s var(--ease-out);
    padding: 0 18px;
    opacity: 0;
}

.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 0 18px 18px 48px;
    opacity: 1;
}

.faq-answer p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.85;
    letter-spacing: 0.01em;
    padding: 12px 14px;
    background: linear-gradient(90deg, #fff5ec 0%, #fff 100%);
    border-left: 3px solid var(--orange);
    border-radius: 12px;
}

/* ============================================================
   Footer：温柔暖色
   ============================================================ */
.footer {
    background: linear-gradient(180deg, #fff 0%, #fff3e3 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-7) var(--space-6);
    text-align: center;
    border: 1px solid var(--border);
    margin-bottom: var(--space-5);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: "";
    position: absolute;
    top: -30%;
    left: -10%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(180, 124, 255, 0.22) 0%, transparent 60%);
    pointer-events: none;
}

.footer::after {
    content: "";
    position: absolute;
    bottom: -40%;
    right: -10%;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.25) 0%, transparent 60%);
    pointer-events: none;
}

.footer-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: var(--space-6);
    gap: var(--space-3);
    flex-wrap: wrap;
    padding-bottom: var(--space-5);
    border-bottom: 2px dashed var(--border);
    position: relative;
    z-index: 2;
}

.stat {
    text-align: center;
    flex: 1;
    min-width: 80px;
    transition: transform 0.3s var(--ease-out);
}

.stat:hover { transform: translateY(-3px); }

.stat .label {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 600;
}

.stat .value {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    line-height: 1.1;
}

.stat:nth-child(2) .value { background: var(--grad-happy); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat:nth-child(3) .value { background: linear-gradient(135deg,#5fb9ff,#4ec9b0); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.stat .unit {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-left: 2px;
}

.footer-logos {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: var(--space-7);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 120px;
}

.logo-box {
    width: 110px;
    height: 64px;
    border-radius: 18px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    padding: 8px 12px;
    box-shadow: 0 8px 20px -6px rgba(255,122,89,0.25),
                inset 0 1px 0 #fff;
    border: 1px solid var(--border);
}

.logo-box img,
.footer-logo-img {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.logo-box.china-telecom-box {
    background: linear-gradient(180deg, #fff 0%, #fff6ee 100%);
    border-color: var(--border);
}

.logo-badge {
    font-size: 16px;
    font-weight: 800;
    color: var(--orange);
    letter-spacing: 0.05em;
}

.logo-badge-telecom {
    font-size: 12px;
    font-weight: 800;
    color: var(--orange);
    letter-spacing: 0.1em;
    text-align: center;
    line-height: 1.4;
}

.logo-name {
    font-size: var(--text-sm);
    color: var(--text-primary);
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    white-space: nowrap;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 600;
}

.footer-sep-line {
    width: 2px;
    height: 48px;
    border-radius: 2px;
    background: linear-gradient(180deg, #ffb84d, #ff7a59, #b47cff);
    align-self: center;
    flex-shrink: 0;
    opacity: 0.8;
}

.footer-text {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    line-height: 2;
    margin-top: var(--space-2);
    letter-spacing: 0.02em;
    position: relative;
    z-index: 2;
}

.footer-text strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* ============================================================
   返回顶部（立体悬浮）
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0));
    right: var(--space-5);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--grad-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 14px 30px -6px rgba(255, 122, 89, 0.55),
                inset 0 1px 0 rgba(255,255,255,0.55);
    z-index: 50;
    opacity: 0;
    transform: translateY(20px) scale(0.85);
    pointer-events: none;
    transition: all 0.4s var(--ease-out);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    animation: floaty 3.5s ease-in-out infinite 0.4s;
}

@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-6px); }
}

.back-to-top:hover {
    transform: translateY(-6px) scale(1.08);
    background: var(--grad-happy);
    box-shadow: 0 18px 36px -6px rgba(180, 124, 255, 0.55);
}

.back-to-top:active { transform: translateY(-2px) scale(1); }

.back-to-top svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ============================================================
   波纹 / 光标跟随 / Banner流光
   ============================================================ */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 122, 89, 0.35);
    transform: scale(0);
    animation: rippleAnim 0.7s var(--ease-out) forwards;
    pointer-events: none;
    z-index: 3;
}

@keyframes rippleAnim {
    0% { transform: scale(0); opacity: 0.7; }
    100% { transform: scale(2.8); opacity: 0; }
}

/* Banner流光 */
.banner-glow {
    position: absolute;
    top: 20%;
    left: -40%;
    width: 60%;
    height: 60%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 184, 77, 0.3) 50%,
        transparent 100%);
    filter: blur(14px);
    animation: glowSweep 6.5s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
    border-radius: 50%;
}

@keyframes glowSweep {
    0% { transform: translateX(0); opacity: 0.35; }
    50% { transform: translateX(220%); opacity: 0.7; }
    100% { transform: translateX(440%); opacity: 0.35; }
}

/* 光标跟随微光（仅桌面） */
.cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle at center,
        rgba(255, 122, 89, 0.18) 0%,
        rgba(180, 124, 255, 0.1) 40%,
        transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
    mix-blend-mode: multiply;
    transition: opacity 0.5s var(--ease-out);
    opacity: 0;
}

@media (hover: hover) and (pointer: fine) {
    body:hover .cursor-glow { opacity: 1; }
}

/* 入场动画（在 IntersectionObserver 触发时加入 .in-view） */
.reveal, .card, .quick-nav, .wifi-intro, .notice-bar, .footer, .grid-container, .news-list {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
    will-change: opacity, transform;
}

.reveal.in-view, .card.in-view, .quick-nav.in-view, .wifi-intro.in-view,
.notice-bar.in-view, .footer.in-view, .grid-container.in-view, .news-list.in-view {
    opacity: 1;
    transform: translateY(0);
}

.reveal.delay-1, .card:nth-child(1) { transition-delay: 0.05s; }
.reveal.delay-2, .card:nth-child(2) { transition-delay: 0.12s; }
.reveal.delay-3, .card:nth-child(3) { transition-delay: 0.2s; }
.reveal.delay-4, .card:nth-child(4) { transition-delay: 0.28s; }
.reveal.delay-5, .card:nth-child(5) { transition-delay: 0.36s; }
.reveal.delay-6, .card:nth-child(6) { transition-delay: 0.44s; }

.banner-hero-text {
    opacity: 0;
    animation: headingFadeIn 1s var(--ease-out) 0.2s forwards;
}

.banner-meta {
    opacity: 0;
    animation: headingFadeIn 1.1s var(--ease-out) 0.5s forwards;
}

@keyframes headingFadeIn {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
    .main-heading { font-size: 30px; }
    .grid-container { grid-template-columns: repeat(4, 1fr); gap: 10px; }
    .grid-item { padding: 13px 7px 11px; border-radius: 17px; }
    .icon-wrapper { width: 44px; height: 44px; border-radius: 16px; }
    .icon-wrapper svg { width: 20px; height: 20px; }
    .item-label { font-size: 12px; }
    .badge { font-size: 9px; padding: 3px 7px; }
    .footer-logos { gap: var(--space-5); }
}

@media (max-width: 480px) {
    .banner { padding: 40px 16px 32px; }
    .main-heading { font-size: 24px; }
    .sub-heading { font-size: 13px; }
    .banner-hero-logo { height: 58px; max-width: 68px; padding: 8px; border-radius: 18px; }
    .quick-nav { grid-template-columns: repeat(5, 1fr); padding: 14px 10px; gap: 6px; }
    .quick-nav-item .icon { width: 44px; height: 44px; border-radius: 16px; }
    .quick-nav-item .icon svg { width: 20px; height: 20px; }
    .quick-nav-item .label { font-size: 11px; }
    .grid-container { grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .grid-item { padding: 12px 6px 10px; border-radius: 16px; }
    .icon-wrapper { width: 40px; height: 40px; border-radius: 14px; }
    .icon-wrapper svg { width: 18px; height: 18px; }
    .item-label { font-size: 12px; }
    .badge { font-size: 8px; padding: 2px 6px; top: -4px; right: -2px; }
    .countdown-number { font-size: 24px; }
    .countdown-item { padding: 12px 4px; border-radius: 16px; }
    .countdown-separator { font-size: 16px; }
    .card { padding: var(--space-6) var(--space-5); border-radius: 20px; }
    .card-title { font-size: 17px; }
    .card-icon { width: 40px; height: 40px; border-radius: 12px; }
    .footer-stats { gap: var(--space-1); }
    .stat .value { font-size: 22px; }
    .brand-logo { width: 34px; height: 34px; padding: 2px; }
    .brand-cn { font-size: 15px; letter-spacing: 0.01em; }
    .brand-en { font-size: 10px; }
    .brand-slogan { font-size: 11px; padding: 6px 12px; }
    .footer-sep-line { height: 36px; width: 2px; }
    .wifi-intro { padding: 18px; gap: 14px; }
    .wifi-intro-right {
        flex-direction: row; flex-wrap: wrap; min-width: 0; width: 100%;
    }
    .wifi-brand-img { flex: 1 1 100%; margin-bottom: 0; padding: 10px 14px; }
    .wifi-brand-img img { max-width: 110px; max-height: 36px; }
    .wifi-fact {
        flex: 1 1 40%; justify-content: center; padding: 10px 12px;
    }
    .logo-box { width: 96px; height: 56px; padding: 6px 10px; border-radius: 14px; overflow: visible; }
    .logo-box img { object-fit: contain; width: 100%; height: 100%; }
    .banner-meta {
        font-size: 12px; margin-top: 18px; padding: 14px 16px; border-radius: 16px;
    }
}

@media (max-width: 360px) {
    .main-heading { font-size: 22px; }
    .grid-container { grid-template-columns: repeat(4, 1fr); gap: 6px; }
    .icon-wrapper { width: 34px; height: 34px; border-radius: 12px; }
    .icon-wrapper svg { width: 16px; height: 16px; }
    .item-label { font-size: 11px; }
    .badge { font-size: 8px; padding: 2px 6px; top: -4px; right: -2px; }
}

@media (min-width: 900px) {
    .grid-container { grid-template-columns: repeat(4, 1fr); }
    .quick-nav { grid-template-columns: repeat(5, 1fr); }
    .main-heading { font-size: 40px; }
    .sub-heading { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
    .cursor-glow, .banner-glow, .brand-hero-logo { display: none !important; animation: none !important; }
    .banner-hero-text, .banner-meta { opacity: 1 !important; animation: none !important; }
    .back-to-top.visible { animation: none !important; }
    .badge { animation: none !important; }
    * { transition-duration: 0.01s !important; animation-duration: 0.01s !important; }
}

::selection { background: rgba(255, 122, 89, 0.2); color: var(--text-primary); }

@media (min-width: 769px) {
    body::-webkit-scrollbar { width: 8px; }
    body::-webkit-scrollbar-track { background: #fff3e3; }
    body::-webkit-scrollbar-thumb {
        background: var(--grad-main);
        border-radius: 4px;
    }
}