/* ============================================
   Hallasan Home · 汉拿山之家
   暗黑默认 · 移动优先 · safe-center布局
   ============================================ */

/* ----- Reset & Viewport ----- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html,body{
    width:100%;
    height:100%;
    height:100dvh;         /* 移动端动态视口 */
    overflow:hidden;
    -webkit-text-size-adjust:100%;
}
body{
    font-family:'Inter','Noto Sans SC',-apple-system,sans-serif;
    background:var(--bg-primary);color:var(--text-primary);
    -webkit-font-smoothing:antialiased;
    transition:background .4s,color .4s;
}

/* ----- CSS Variables ----- */
:root{
    --pink:#FF6B8A;--pink-light:#FFB3C6;--pink-dark:#E84A6E;
    --yellow:#FFD93D;--yellow-light:#FFEB85;
    --orange:#FF8C42;--orange-light:#FFB380;
    --green:#4ECB71;--green-light:#7EDB96;--green-dark:#3AA858;
    --coral:#FF6B6B;--peach:#FFA07A;
    --bg-primary:#0b0b14;--bg-secondary:#141428;
    --bg-card:rgba(22,22,44,0.72);--bg-card-hover:rgba(30,30,55,0.92);
    --bg-input:rgba(18,18,36,0.8);
    --text-primary:#e8e8f0;--text-secondary:#9999bb;--text-tertiary:#666688;
    --border-light:rgba(255,255,255,0.06);--border-strong:rgba(255,255,255,0.1);
    --shadow-sm:0 2px 8px rgba(0,0,0,0.3);--shadow-md:0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg:0 16px 48px rgba(0,0,0,0.5);--shadow-xl:0 32px 80px rgba(0,0,0,0.6);
    --glass-blur:blur(24px);--glass-border:rgba(255,255,255,0.08);
    --radius-sm:10px;--radius-md:18px;--radius-lg:26px;--radius-xl:32px;
    --transition-fast:.2s cubic-bezier(.4,0,.2,1);
    --transition-smooth:.4s cubic-bezier(.4,0,.2,1);
    --transition-page:.6s cubic-bezier(.65,0,.35,1);
    --safe-top:env(safe-area-inset-top,0px);
    --safe-bottom:env(safe-area-inset-bottom,0px);
    --toolbar-h:50px;      /* 工具栏预估高度 */
}
body:not(.dark){
    --bg-primary:#faf8f5;--bg-secondary:#ffffff;
    --bg-card:rgba(255,255,255,0.72);--bg-card-hover:rgba(255,255,255,0.92);
    --bg-input:rgba(255,255,255,0.8);
    --text-primary:#1a1a2e;--text-secondary:#5a5a7a;--text-tertiary:#8a8aaa;
    --border-light:rgba(0,0,0,0.06);--border-strong:rgba(0,0,0,0.1);
    --shadow-sm:0 2px 8px rgba(0,0,0,0.04);--shadow-md:0 8px 32px rgba(0,0,0,0.06);
    --shadow-lg:0 16px 48px rgba(0,0,0,0.08);--shadow-xl:0 32px 80px rgba(0,0,0,0.1);
    --glass-border:rgba(255,255,255,0.6);
}

/* ============================================
   背景层
   ============================================ */
.bg-layer{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;perspective:1200px;}
.float-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.2;animation:floatOrb 14s ease-in-out infinite;}
.orb-1{width:400px;height:400px;background:radial-gradient(circle,var(--pink),transparent 60%);top:-8%;left:-4%;animation-delay:0s;}
.orb-2{width:350px;height:350px;background:radial-gradient(circle,var(--orange),transparent 60%);top:50%;right:-6%;animation-delay:-5s;animation-duration:16s;}
.orb-3{width:300px;height:300px;background:radial-gradient(circle,var(--green),transparent 60%);bottom:-5%;left:15%;animation-delay:-9s;animation-duration:18s;}
.orb-4{width:250px;height:250px;background:radial-gradient(circle,var(--yellow),transparent 60%);top:20%;right:20%;animation-delay:-7s;animation-duration:15s;}
@keyframes floatOrb{
    0%,100%{transform:translate(0,0) scale(1)}
    25%{transform:translate(40px,-30px) scale(1.06)}
    50%{transform:translate(-25px,20px) scale(.94)}
    75%{transform:translate(15px,35px) scale(1.03)}
}
.float-cube{position:absolute;width:50px;height:50px;transform-style:preserve-3d;animation:rotateCube 22s linear infinite;opacity:.06;}
.cube-1{top:12%;left:68%}
.cube-2{bottom:15%;left:82%;width:36px;height:36px;animation-duration:26s;animation-delay:-12s}
.cube-face{position:absolute;width:100%;height:100%;border:1.5px solid var(--pink);background:rgba(255,107,138,.05);border-radius:4px}
.front{transform:translateZ(25px)}.back{transform:rotateY(180deg) translateZ(25px)}
.left{transform:rotateY(-90deg) translateZ(25px)}.right{transform:rotateY(90deg) translateZ(25px)}
.top{transform:rotateX(90deg) translateZ(25px)}.bottom{transform:rotateX(-90deg) translateZ(25px)}
.cube-2 .front,.cube-2 .back,.cube-2 .left,.cube-2 .right,.cube-2 .top,.cube-2 .bottom{transform:translateZ(18px)}
.cube-2 .back{transform:rotateY(180deg) translateZ(18px)}.cube-2 .left{transform:rotateY(-90deg) translateZ(18px)}
.cube-2 .right{transform:rotateY(90deg) translateZ(18px)}.cube-2 .top{transform:rotateX(90deg) translateZ(18px)}
.cube-2 .bottom{transform:rotateX(-90deg) translateZ(18px)}
@keyframes rotateCube{0%{transform:rotateX(0deg) rotateY(0deg) rotateZ(0deg)}100%{transform:rotateX(360deg) rotateY(720deg) rotateZ(360deg)}}
.float-ring{position:absolute;border-radius:50%;border:2px solid;opacity:.06;animation:rotateRing 18s linear infinite}
.ring-1{top:55%;left:4%;width:180px;height:180px;border-color:var(--yellow)}
.ring-2{top:8%;right:8%;width:100px;height:100px;border-color:var(--green);animation-direction:reverse;animation-duration:14s}
@keyframes rotateRing{0%{transform:rotateX(55deg) rotateZ(0deg)}100%{transform:rotateX(55deg) rotateZ(360deg)}}
.grid-pattern{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);background-size:64px 64px}
body:not(.dark) .grid-pattern{background-image:linear-gradient(rgba(0,0,0,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.02) 1px,transparent 1px)}

/* ============================================
   顶部工具栏
   ============================================ */
.top-toolbar{
    position:fixed;top:0;left:0;right:0;z-index:100;
    display:flex;align-items:center;justify-content:space-between;
    height:var(--toolbar-h);
    height:calc(var(--toolbar-h) + var(--safe-top));
    padding:0 20px;
    padding-top:var(--safe-top);
    pointer-events:none;
}
.toolbar-left,.toolbar-right{display:flex;align-items:center;gap:8px;pointer-events:auto}
.toolbar-btn{
    display:flex;align-items:center;gap:6px;
    padding:7px 12px;border-radius:50px;
    border:1px solid var(--border-strong);
    background:var(--bg-card);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    color:var(--text-secondary);
    font-family:inherit;font-size:.76rem;font-weight:500;
    cursor:pointer;transition:all var(--transition-fast);
}
.toolbar-btn:hover{color:var(--text-primary);border-color:var(--pink);box-shadow:var(--shadow-sm)}
.admin-entrance:hover{border-color:var(--yellow);color:var(--yellow)}
.user-greeting{font-size:.76rem;color:var(--text-secondary);margin-right:4px}
.theme-toggle{
    width:36px;height:36px;border-radius:50%;padding:0;
    display:flex;align-items:center;justify-content:center;
    cursor:pointer;border:1px solid var(--border-strong);
    background:var(--bg-card);color:var(--text-secondary);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    transition:all var(--transition-fast);
}
.theme-toggle:hover{border-color:var(--yellow);color:var(--yellow)}
.icon-sun,.icon-moon{position:absolute;transition:all .4s}
body.dark .icon-moon{opacity:1;transform:rotate(0) scale(1)}
body.dark .icon-sun{opacity:0;transform:rotate(-90deg) scale(.5)}
body:not(.dark) .icon-moon{opacity:0;transform:rotate(90deg) scale(.5)}
body:not(.dark) .icon-sun{opacity:1;transform:rotate(0) scale(1)}

/* ============================================
   主容器 & Section 架构
   使用 justify-content:flex-start + margin:auto 解决居中溢出裁剪
   ============================================ */
.app-container{
    position:relative;z-index:1;
    width:100%;
    height:100%;
    height:100dvh;
    overflow:hidden;
}

/* 所有 section: 绝对定位填满 + flex列 + 内容从顶部开始 */
.section{
    position:absolute;
    top:0;left:0;right:0;bottom:0;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:flex-start;  /* 不再 center，避免溢出裁剪 */
    overflow-y:auto;
    overflow-x:hidden;
    -webkit-overflow-scrolling:touch;

    opacity:0;pointer-events:none;
    transition:opacity var(--transition-page),transform var(--transition-page);
}
.section.active{
    opacity:1;pointer-events:auto;
    transform:translateY(0) scale(1);
}
.section:not(.active){
    transform:translateY(40px) scale(.97);
}

/* ============================================
   Section 1: Hero — margin:auto 安全居中
   ============================================ */
.hero-layout{
    margin:auto;  /* 关键：安全居中，溢出时 margin 归零自动滚动 */
    width:min(90%,640px);
    display:flex;flex-direction:column;align-items:center;text-align:center;
    padding:20px 0 40px;
}

.hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    font-family:'Space Grotesk',monospace;
    font-size:.74rem;font-weight:500;letter-spacing:.08em;
    color:var(--text-secondary);
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    padding:6px 16px;border-radius:50px;margin-bottom:20px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
}
.badge-dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--green);
    box-shadow:0 0 10px var(--green);
    animation:badgePulse 2s ease-in-out infinite;
}
@keyframes badgePulse{
    0%,100%{box-shadow:0 0 8px var(--green)}
    50%{box-shadow:0 0 16px var(--green),0 0 24px var(--green)}
}

.hero-title{
    margin-bottom:16px;
    display:flex;flex-direction:column;align-items:center;gap:0;
}
.title-line{
    font-family:'Space Grotesk','Noto Sans SC',sans-serif;
    font-size:clamp(1.8rem,5vw,3.5rem);
    font-weight:800;letter-spacing:-.03em;line-height:1.15;
    animation:titleIn .8s ease-out both;
}
.line-harold{
    background:linear-gradient(135deg,var(--pink),var(--orange),var(--yellow));
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
    animation-delay:0s;
}
.line-cherith{
    background:linear-gradient(135deg,var(--green),var(--coral),var(--pink));
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
    margin-top:2px;animation-delay:.3s;
}
.title-amp{
    font-family:'Inter',serif;
    font-size:clamp(.95rem,2.5vw,1.4rem);
    font-weight:300;color:var(--text-tertiary);
    margin:6px 0;
    animation:ampPulse 2s ease-in-out infinite;
}
@keyframes titleIn{
    from{opacity:0;transform:translateX(-20px)}
    to{opacity:1;transform:translateX(0)}
}
@keyframes ampPulse{
    0%,100%{opacity:.4;transform:scale(1)}
    50%{opacity:1;transform:scale(1.12)}
}

.hero-desc{
    font-size:clamp(.78rem,1.5vw,.95rem);
    line-height:1.8;color:var(--text-secondary);
    margin-bottom:24px;max-width:460px;
}
.hero-timer{
    display:flex;gap:10px;margin-bottom:10px;
    flex-wrap:wrap;justify-content:center;
}
.timer-block{
    display:flex;flex-direction:column;align-items:center;
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-md);
    padding:12px 16px;min-width:68px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-sm);
    transition:all var(--transition-fast);
}
.timer-block:hover{
    transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--pink);
}
.timer-num{
    font-family:'Space Grotesk',monospace;
    font-size:clamp(1.2rem,3vw,1.9rem);
    font-weight:700;color:var(--text-primary);line-height:1;
}
.timer-label{
    font-size:.65rem;color:var(--text-tertiary);margin-top:4px;letter-spacing:.04em;
}
.hero-since{font-size:.78rem;color:var(--text-tertiary)}

/* 飘浮爱心 */
.hero-hearts{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.hero-layout{position:relative;z-index:1}
.floating-heart{position:absolute;color:var(--pink);opacity:.12;animation:heartFloat 8s ease-in-out infinite}
.floating-heart.h1{font-size:2.2rem;top:5%;left:5%;animation-delay:0s;animation-duration:9s}
.floating-heart.h2{font-size:1.6rem;top:12%;right:8%;animation-delay:-2s;animation-duration:7s}
.floating-heart.h3{font-size:2.6rem;bottom:15%;left:10%;animation-delay:-4s;animation-duration:10s}
.floating-heart.h4{font-size:1.8rem;bottom:8%;right:12%;animation-delay:-6s;animation-duration:8s}
.floating-heart.h5{font-size:1.3rem;top:40%;right:4%;animation-delay:-3s;animation-duration:7.5s}
@keyframes heartFloat{
    0%,100%{transform:translateY(0) rotate(0deg) scale(1)}
    25%{transform:translateY(-20px) rotate(5deg) scale(1.2)}
    50%{transform:translateY(-5px) rotate(-3deg) scale(.9)}
    75%{transform:translateY(15px) rotate(2deg) scale(1.1)}
}

.scroll-hint{
    position:absolute;bottom:16px;left:50%;transform:translateX(-50%);
    display:flex;flex-direction:column;align-items:center;gap:6px;
    color:var(--text-tertiary);font-size:.65rem;letter-spacing:.1em;
    animation:bounceHint 2s ease-in-out infinite;opacity:.5;
}
@keyframes bounceHint{
    0%,100%{transform:translateX(-50%) translateY(0)}
    50%{transform:translateX(-50%) translateY(8px)}
}

/* ============================================
   Section 2: 时光相册
   ============================================ */
.section-gallery{justify-content:flex-start}
.gallery-layout{
    display:flex;flex-direction:column;align-items:center;
    width:min(90%,900px);
    gap:18px;
    margin-top:0;
    padding-top:calc(var(--toolbar-h) + var(--safe-top) + 16px);
    padding-bottom:calc(32px + var(--safe-bottom));
}
.gallery-header{text-align:center}
.section-tag{
    display:inline-block;
    font-family:'Space Grotesk',monospace;
    font-size:.68rem;font-weight:600;letter-spacing:.14em;
    text-transform:uppercase;color:var(--pink);
    border:1px solid rgba(255,107,138,.25);
    padding:4px 12px;border-radius:20px;margin-bottom:6px;
}
.section-title{
    font-family:'Space Grotesk','Noto Sans SC',sans-serif;
    font-size:1.6rem;font-weight:700;letter-spacing:-.02em;margin-bottom:2px;
    background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
}
.section-desc{font-size:.82rem;color:var(--text-tertiary)}

.gallery-stage{display:flex;align-items:center;gap:14px;width:100%}
.gallery-arrow{
    width:40px;height:40px;border-radius:50%;
    border:1px solid var(--border-strong);
    background:var(--bg-card);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    cursor:pointer;display:flex;align-items:center;justify-content:center;
    color:var(--text-secondary);flex-shrink:0;
    transition:all var(--transition-fast);
}
.gallery-arrow:hover{border-color:var(--pink);color:var(--pink);box-shadow:var(--shadow-md)}

.gallery-viewport{
    flex:1;overflow:hidden;border-radius:var(--radius-lg);
    border:1px solid var(--glass-border);
    background:var(--bg-card);box-shadow:var(--shadow-lg);min-width:0;
}
.gallery-track{display:flex;transition:transform .6s cubic-bezier(.25,.1,.25,1);will-change:transform}
.gallery-slide{flex:0 0 100%;position:relative;aspect-ratio:16/10;overflow:hidden}
.gallery-slide img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .8s ease}
.gallery-slide.active img{animation:slideZoomIn .8s ease-out}
@keyframes slideZoomIn{from{transform:scale(1.15)}to{transform:scale(1)}}
.gallery-slide-overlay{
    position:absolute;bottom:0;left:0;right:0;
    padding:28px 24px 20px;
    background:linear-gradient(transparent,rgba(0,0,0,.4) 40%,rgba(0,0,0,.7));
    color:#fff;transform:translateY(20px);opacity:0;
    transition:all .5s ease .15s;
}
.gallery-slide.active .gallery-slide-overlay{transform:translateY(0);opacity:1}
.gallery-slide-title{font-size:1.1rem;font-weight:600;margin-bottom:3px}
.gallery-slide-loc{font-size:.75rem;opacity:.8}

.gallery-pagination{display:flex;align-items:center;gap:12px;width:100%;max-width:480px}
.gallery-progress-bar{flex:1;height:3px;background:var(--border-light);border-radius:10px;overflow:hidden}
.gallery-progress-fill{
    height:100%;
    background:linear-gradient(90deg,var(--pink),var(--orange));
    border-radius:10px;transition:width .5s ease;
}
.gallery-dots{display:flex;gap:7px}
.gallery-dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--border-strong);border:none;cursor:pointer;
    transition:all var(--transition-fast);
}
.gallery-dot.active{background:var(--pink);box-shadow:0 0 8px var(--pink);width:22px;border-radius:10px}
.gallery-counter{
    font-family:'Space Grotesk',monospace;
    font-size:.75rem;color:var(--text-tertiary);min-width:38px;text-align:center;
}
.gallery-info-bar{
    display:flex;align-items:center;gap:10px;
    font-size:.8rem;color:var(--text-secondary);min-height:20px;
}
.gallery-info-bar span{transition:all .4s ease}

/* ============================================
   Section 3: 甜蜜广场
   ============================================ */
.section-feed{justify-content:flex-start}
.feed-layout{
    display:flex;gap:20px;
    width:min(92%,1000px);
    flex:1;min-height:0;
    padding-top:calc(var(--toolbar-h) + var(--safe-top) + 12px);
    padding-bottom:calc(20px + var(--safe-bottom));
}
.feed-sidebar{flex:0 0 220px}
.feed-main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}

.user-card{
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);
    padding:24px 18px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-md);
    display:flex;flex-direction:column;align-items:center;text-align:center;
    position:relative;overflow:hidden;
}
.user-card::before{
    content:'';position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,var(--pink),var(--orange),var(--yellow),var(--green));
    border-radius:3px 3px 0 0;
}
.user-card-avatar{
    width:60px;height:60px;border-radius:50%;
    background:linear-gradient(135deg,var(--pink),var(--orange));
    display:flex;align-items:center;justify-content:center;
    color:#fff;margin-bottom:12px;
}
.user-card-name{font-size:.92rem;font-weight:700;margin-bottom:2px;color:var(--text-primary)}
.user-card-bio{font-size:.73rem;color:var(--text-tertiary);margin-bottom:16px}
.user-card-stats{display:flex;gap:20px;margin-bottom:18px}
.stat-item{display:flex;flex-direction:column;align-items:center}
.stat-num{
    font-family:'Space Grotesk',monospace;
    font-size:1.1rem;font-weight:700;color:var(--text-primary);
}
.stat-label{font-size:.63rem;color:var(--text-tertiary);margin-top:1px}
.sidebar-login-btn{
    width:100%;padding:9px;
    border-radius:50px;border:1px solid var(--pink);
    background:transparent;color:var(--pink);
    font-family:inherit;font-size:.8rem;font-weight:600;
    cursor:pointer;transition:all var(--transition-fast);
}
.sidebar-login-btn:hover{background:var(--pink);color:#fff}

.feed-header{margin-bottom:12px;flex-shrink:0}
.feed-composer{
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);
    padding:16px 18px;margin-bottom:12px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-sm);flex-shrink:0;
}
.composer-top{display:flex;gap:10px;margin-bottom:12px}
.composer-avatar{
    width:36px;height:36px;border-radius:50%;
    background:linear-gradient(135deg,var(--pink),var(--orange));
    display:flex;align-items:center;justify-content:center;
    color:#fff;flex-shrink:0;
}
.composer-input{
    flex:1;border:none;background:transparent;
    font-family:inherit;font-size:.88rem;color:var(--text-primary);
    resize:none;outline:none;line-height:1.5;
}
.composer-input::placeholder{color:var(--text-tertiary)}
.composer-bottom{
    display:flex;align-items:center;justify-content:space-between;
    border-top:1px solid var(--border-light);padding-top:10px;
}
.composer-author{display:flex;align-items:center;gap:5px;font-size:.73rem;color:var(--text-tertiary)}
.author-toggle{
    padding:3px 10px;border-radius:12px;border:1px solid transparent;
    background:transparent;cursor:pointer;
    font-family:inherit;font-size:.72rem;color:var(--text-tertiary);
    transition:all var(--transition-fast);
}
.author-toggle.active{background:var(--pink);color:#fff;border-color:var(--pink)}
.author-toggle:hover:not(.active){border-color:var(--border-strong);color:var(--text-secondary)}
.composer-actions{display:flex;align-items:center;gap:10px}
.char-count{font-size:.7rem;color:var(--text-tertiary);font-family:'Space Grotesk',monospace}
.btn-post{
    display:flex;align-items:center;gap:6px;
    padding:7px 18px;border-radius:50px;border:none;
    background:linear-gradient(135deg,var(--pink),var(--orange));
    color:#fff;font-family:inherit;font-size:.8rem;font-weight:600;
    cursor:pointer;transition:all var(--transition-fast);
    box-shadow:0 4px 15px rgba(255,107,138,.25);
}
.btn-post:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,107,138,.35)}
.btn-post:active{transform:scale(.97)}

.feed-stream{
    flex:1;overflow-y:auto;
    display:flex;flex-direction:column;gap:8px;
    padding-right:6px;min-height:0;
}
.feed-stream::-webkit-scrollbar{width:4px}
.feed-stream::-webkit-scrollbar-track{background:transparent}
.feed-stream::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:10px}

.post-card{
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-md);
    padding:14px 16px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-sm);
    transition:all var(--transition-fast);
    animation:postIn .35s ease-out;
}
@keyframes postIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.post-card:hover{box-shadow:var(--shadow-md)}
.post-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.post-author-row{display:flex;align-items:center;gap:8px}
.post-avatar-sm{
    width:26px;height:26px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-size:.55rem;font-weight:700;color:#fff;
}
.post-avatar-sm.harold{background:linear-gradient(135deg,var(--green),var(--green-dark))}
.post-avatar-sm.cherith{background:linear-gradient(135deg,var(--pink),var(--coral))}
.post-author-name{font-weight:600;font-size:.83rem;color:var(--text-primary)}
.post-time{font-size:.66rem;color:var(--text-tertiary)}
.post-body{
    font-size:.86rem;line-height:1.6;color:var(--text-secondary);
    margin-bottom:8px;word-break:break-word;
}
.post-footer{display:flex;align-items:center;gap:14px}
.post-like-btn{
    display:flex;align-items:center;gap:4px;
    background:none;border:none;cursor:pointer;
    font-size:.74rem;color:var(--text-tertiary);
    font-family:inherit;padding:3px 8px;border-radius:12px;
    transition:all var(--transition-fast);
}
.post-like-btn:hover{background:rgba(255,107,138,.08)}
.post-like-btn.liked{color:var(--pink)}
.post-like-btn svg{width:13px;height:13px}
.post-delete-btn{
    margin-left:auto;background:none;border:none;cursor:pointer;
    color:var(--text-tertiary);padding:4px;border-radius:6px;
    opacity:0;transition:all var(--transition-fast);
}
.post-card:hover .post-delete-btn{opacity:1}
.post-delete-btn:hover{color:var(--coral);background:rgba(255,107,107,.1)}
.empty-feed{text-align:center;padding:32px 16px;color:var(--text-tertiary);font-size:.83rem}

/* ============================================
   Section 4: 游戏乐园
   ============================================ */
.section-games{justify-content:flex-start}
.games-select{
    display:flex;flex-direction:column;align-items:center;
    width:min(90%,600px);
    gap:28px;
    margin-top:0;
    padding-top:calc(var(--toolbar-h) + var(--safe-top) + 16px);
    padding-bottom:calc(32px + var(--safe-bottom));
    transition:all .5s cubic-bezier(.4,0,.2,1);
}
.games-select.hidden{opacity:0;transform:scale(.95);pointer-events:none;position:absolute}
.section-header{text-align:center}
.games-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:100%}
.game-card{
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);
    cursor:pointer;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-sm);
    transition:all var(--transition-fast);
    position:relative;overflow:hidden;
}
.game-card::before{
    content:'';position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,var(--pink),var(--orange),var(--yellow),var(--green));
    opacity:0;transition:opacity var(--transition-fast);
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.game-card:hover::before{opacity:1}
.game-card-inner{padding:24px;display:flex;align-items:center;gap:16px}
.game-icon{
    font-size:2rem;width:56px;height:56px;
    display:flex;align-items:center;justify-content:center;
    border-radius:var(--radius-sm);background:rgba(255,107,138,.08);
}
.game-card:nth-child(2) .game-icon{background:rgba(255,217,61,.08)}
.game-info{flex:1;min-width:0}
.game-name{
    font-family:'Space Grotesk','Noto Sans SC',sans-serif;
    font-size:1.05rem;font-weight:700;margin-bottom:2px;color:var(--text-primary);
}
.game-desc{font-size:.76rem;color:var(--text-tertiary)}
.game-tag{
    display:inline-block;font-size:.63rem;font-weight:500;
    padding:2px 8px;border-radius:10px;
    background:var(--border-light);color:var(--text-tertiary);
    margin-top:3px;white-space:nowrap;
}

/* 游戏内嵌区 */
.games-play{
    width:min(90%,680px);
    display:none;flex-direction:column;gap:14px;
    animation:gameSlideIn .4s ease-out;min-height:0;
    padding-top:calc(var(--toolbar-h) + var(--safe-top) + 8px);
    padding-bottom:calc(20px + var(--safe-bottom));
}
.games-play.active{display:flex}
@keyframes gameSlideIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.games-play-header{
    display:flex;align-items:center;gap:14px;
    padding:0 0 10px;border-bottom:1px solid var(--border-light);
    flex-shrink:0;
}
.game-back-btn{
    display:flex;align-items:center;gap:5px;
    padding:6px 12px;border-radius:18px;
    border:1px solid var(--border-strong);
    background:var(--bg-card);color:var(--text-secondary);
    font-family:inherit;font-size:.76rem;cursor:pointer;
    transition:all var(--transition-fast);flex-shrink:0;
}
.game-back-btn:hover{border-color:var(--pink);color:var(--pink)}
.game-play-title{
    font-family:'Space Grotesk','Noto Sans SC',sans-serif;
    font-size:1.15rem;font-weight:700;flex:1;min-width:0;
}
.game-play-actions{display:flex;gap:8px;flex-shrink:0}
.games-play-body{
    flex:1;display:flex;align-items:flex-start;justify-content:center;
    padding:4px 0;min-height:0;overflow-y:auto;
}

/* ===== 五子棋 — 真实棋盘网格线 ===== */
.gomoku-wrap{display:flex;flex-direction:column;align-items:center;gap:12px}
.gomoku-info{text-align:center;font-weight:600;font-size:.88rem;min-height:22px}

.gomoku-board{
    display:grid;
    grid-template-columns:repeat(15,1fr);
    grid-template-rows:repeat(15,1fr);
    width:min(420px,85vw);
    height:min(420px,85vw);
    margin:0 auto;
    background:linear-gradient(135deg,#d4a853,#c4943a,#d4a853);
    border-radius:var(--radius-sm);
    box-shadow:inset 0 2px 12px rgba(0,0,0,.2),0 8px 32px rgba(0,0,0,.3);
    position:relative;padding:8px;
}
.gomoku-cell{
    position:relative;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    border-right:1px solid rgba(139,105,20,.5);
    border-bottom:1px solid rgba(139,105,20,.5);
    transition:background .15s ease;
}
.gomoku-cell:hover{background:rgba(255,255,255,.06)}
.gomoku-cell:nth-child(15n){border-right:none}
.gomoku-board .gomoku-cell:nth-last-child(-n+15){border-bottom:none}

.gomoku-cell.star::before{
    content:'';position:absolute;
    width:10px;height:10px;border-radius:50%;
    background:rgba(139,105,20,.7);
    z-index:0;pointer-events:none;
}
.gomoku-cell::after{
    content:'';position:absolute;
    width:0;height:0;border-radius:50%;
    transition:all .12s ease;
    z-index:1;pointer-events:none;
}
.gomoku-cell.black::after{
    width:82%;height:82%;
    background:radial-gradient(circle at 35% 35%,#3a3a5c,#1a1a2e);
    box-shadow:2px 2px 4px rgba(0,0,0,.5),inset -1px -1px 2px rgba(255,255,255,.1);
}
.gomoku-cell.white::after{
    width:82%;height:82%;
    background:radial-gradient(circle at 35% 35%,#fff,#e0e0e0);
    box-shadow:2px 2px 4px rgba(0,0,0,.3),inset -1px -1px 2px rgba(0,0,0,.05);
}
.gomoku-cell.win-cell::after{
    animation:winGlow .6s ease-in-out infinite alternate;
}
@keyframes winGlow{
    from{box-shadow:0 0 8px var(--pink),0 0 16px var(--pink)}
    to{box-shadow:0 0 18px var(--pink),0 0 36px var(--pink),0 0 54px var(--orange)}
}
.gomoku-reset{
    padding:7px 20px;border-radius:50px;border:none;
    background:var(--pink);color:#fff;
    font-family:inherit;font-size:.78rem;font-weight:600;
    cursor:pointer;transition:all var(--transition-fast);
}
.gomoku-reset:hover{transform:scale(1.04)}

/* ===== 贪吃蛇 ===== */
.snake-wrap{display:flex;flex-direction:column;align-items:center;gap:12px}
.snake-canvas{border-radius:var(--radius-sm);border:2px solid var(--border-strong);background:var(--bg-primary)}
.snake-score{font-family:'Space Grotesk',monospace;font-size:1.15rem;font-weight:700}
.snake-btn{
    padding:7px 16px;border-radius:18px;
    border:1px solid var(--border-strong);
    background:var(--bg-card);cursor:pointer;
    font-family:inherit;font-size:.76rem;color:var(--text-primary);
    transition:all var(--transition-fast);
}
.snake-btn:hover{border-color:var(--pink);color:var(--pink)}
.dpad{display:grid;grid-template-columns:repeat(3,38px);grid-template-rows:repeat(3,38px);gap:3px}
.dpad-btn{
    border-radius:var(--radius-sm);border:1px solid var(--border-strong);
    background:var(--bg-card);cursor:pointer;font-size:1rem;color:var(--text-primary);
    display:flex;align-items:center;justify-content:center;
    transition:all var(--transition-fast);
    -webkit-tap-highlight-color:transparent;user-select:none;
}
.dpad-btn:active{background:var(--pink);color:#fff}
.dpad-up{grid-column:2;grid-row:1}
.dpad-left{grid-column:1;grid-row:2}
.dpad-center{grid-column:2;grid-row:2;background:transparent;border:none;cursor:default}
.dpad-right{grid-column:3;grid-row:2}
.dpad-down{grid-column:2;grid-row:3}

/* ============================================
   管理后台
   ============================================ */
.section-admin{justify-content:flex-start}
.admin-layout{
    display:flex;flex-direction:column;align-items:center;
    width:min(90%,800px);gap:28px;
    padding-top:calc(var(--toolbar-h) + var(--safe-top) + 16px);
    padding-bottom:calc(32px + var(--safe-bottom));
}
.admin-panels{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;width:100%}
.admin-panel{
    background:var(--bg-card);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);
    padding:24px 20px;
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    box-shadow:var(--shadow-sm);
    transition:all var(--transition-fast);text-align:center;
}
.admin-panel:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.admin-panel-icon{margin-bottom:12px;color:var(--yellow)}
.admin-panel h3{font-size:.95rem;font-weight:700;margin-bottom:4px;color:var(--text-primary)}
.admin-panel p{font-size:.78rem;color:var(--text-tertiary);margin-bottom:8px}
.admin-badge{
    display:inline-block;font-size:.63rem;
    padding:3px 8px;border-radius:10px;
    background:rgba(255,217,61,.12);color:var(--yellow);
}

/* ============================================
   弹窗系统
   ============================================ */
.modal-overlay{
    position:fixed;inset:0;z-index:300;
    display:flex;align-items:center;justify-content:center;
    opacity:0;pointer-events:none;
    transition:opacity .3s ease;
}
.modal-overlay.open{opacity:1;pointer-events:auto}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.modal-content{
    position:relative;z-index:1;
    background:var(--bg-secondary);
    border:1px solid var(--border-strong);
    border-radius:var(--radius-xl);
    box-shadow:var(--shadow-xl);
    width:90%;padding:28px;
    animation:modalIn .3s ease-out;
}
@keyframes modalIn{from{opacity:0;transform:scale(.94) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-sm{max-width:380px}
.modal-xs{max-width:360px}
.modal-lg{max-width:560px;max-height:85vh;overflow-y:auto;padding:0}
.modal-close{
    position:absolute;top:12px;right:12px;
    width:32px;height:32px;border-radius:50%;
    border:1px solid var(--border-light);
    background:var(--bg-card);cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    color:var(--text-secondary);transition:all var(--transition-fast);
}
.modal-close:hover{background:var(--coral);color:#fff;border-color:var(--coral)}
.modal-icon{
    width:68px;height:68px;border-radius:50%;
    background:linear-gradient(135deg,var(--pink),var(--orange));
    display:flex;align-items:center;justify-content:center;
    margin:0 auto 16px;color:#fff;
}
.modal-title{font-size:1.15rem;font-weight:700;text-align:center;margin-bottom:4px;color:var(--text-primary)}
.modal-subtitle{font-size:.8rem;color:var(--text-tertiary);text-align:center;margin-bottom:22px}
.modal-body-text{font-size:.88rem;color:var(--text-secondary);text-align:center;margin-bottom:22px;line-height:1.6}
.login-form{display:flex;flex-direction:column;gap:14px}
.input-group{display:flex;flex-direction:column;gap:5px}
.input-group label{font-size:.76rem;font-weight:500;color:var(--text-secondary)}
.input-group input{
    padding:11px 14px;border-radius:var(--radius-sm);
    border:1px solid var(--border-strong);
    background:var(--bg-input);color:var(--text-primary);
    font-family:inherit;font-size:.88rem;outline:none;
    transition:border var(--transition-fast);
}
.input-group input:focus{border-color:var(--pink)}
.btn-login-submit{
    padding:11px;border-radius:50px;border:none;
    background:linear-gradient(135deg,var(--pink),var(--orange));
    color:#fff;font-family:inherit;font-size:.88rem;font-weight:600;
    cursor:pointer;transition:all var(--transition-fast);
    box-shadow:0 4px 15px rgba(255,107,138,.25);margin-top:2px;
}
.btn-login-submit:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,107,138,.35)}
.login-hint{font-size:.7rem;color:var(--text-tertiary);text-align:center;margin-top:12px}
.modal-actions{display:flex;gap:12px;justify-content:center}
.btn-cancel,.btn-confirm{
    padding:9px 26px;border-radius:50px;
    font-family:inherit;font-size:.83rem;font-weight:600;
    cursor:pointer;transition:all var(--transition-fast);
}
.btn-cancel{border:1px solid var(--border-strong);background:var(--bg-card);color:var(--text-secondary)}
.btn-cancel:hover{border-color:var(--text-tertiary)}
.btn-confirm{border:none;background:var(--coral);color:#fff}
.btn-confirm:hover{opacity:.9;transform:translateY(-1px)}

/* ============================================
   导航点
   ============================================ */
.nav-dots{
    position:fixed;right:12px;top:50%;transform:translateY(-50%);
    z-index:80;display:flex;flex-direction:column;gap:10px;
}
.nav-dot{
    width:9px;height:9px;border-radius:50%;
    background:var(--text-tertiary);border:none;cursor:pointer;
    transition:all var(--transition-smooth);
    position:relative;opacity:.35;
}
.nav-dot.active{opacity:1;background:var(--pink);box-shadow:0 0 10px var(--pink)}
.nav-dot:hover{opacity:.8;transform:scale(1.3)}
.dot-label{
    position:absolute;right:16px;top:50%;transform:translateY(-50%);
    font-size:.64rem;font-weight:500;color:var(--text-secondary);
    white-space:nowrap;opacity:0;pointer-events:none;
    background:var(--bg-card);padding:3px 8px;border-radius:6px;
    border:1px solid var(--border-light);
    transition:all var(--transition-fast);
}
.nav-dot:hover .dot-label{opacity:1}

/* ============================================
   响应式 — 5级断点（移动优先调整）
   ============================================ */

/* ---- 第一级：小屏笔记本 (<=1024px) ---- */
@media (max-width:1024px){
    .feed-layout{gap:16px}
    .feed-sidebar{flex:0 0 200px}
    .games-grid{max-width:520px}
    .gomoku-board{width:min(380px,80vw);height:min(380px,80vw)}
}

/* ---- 第二级：竖屏平板 / 宽手机 (<=768px) ---- */
@media (max-width:768px){
    .top-toolbar{
        height:44px;
        height:calc(44px + var(--safe-top));
        padding:0 12px;
        padding-top:var(--safe-top);
    }
    .toolbar-btn span{display:none}
    .toolbar-btn{padding:6px 9px}
    :root{--toolbar-h:44px}

    .hero-layout{padding-top:6px;padding-bottom:30px}
    .hero-title .title-line{font-size:clamp(1.5rem,6vw,2.6rem)}
    .hero-desc{font-size:clamp(.76rem,2vw,.86rem)}
    .hero-timer{gap:7px}
    .timer-block{min-width:58px;padding:10px 12px}

    .gallery-layout{padding-top:calc(var(--toolbar-h) + var(--safe-top) + 10px)}
    .gallery-viewport{aspect-ratio:4/3}
    .gallery-arrow{width:36px;height:36px}
    .gallery-slide{aspect-ratio:4/3}
    .gallery-stage{gap:8px}

    .feed-layout{flex-direction:column;gap:12px}
    .feed-sidebar{flex:0 0 auto}
    .user-card{flex-direction:row;flex-wrap:wrap;text-align:left;padding:14px;gap:10px}
    .user-card-avatar{width:42px;height:42px;margin-bottom:0}
    .user-card-name{margin-bottom:0}
    .user-card-bio{display:none}
    .user-card-stats{margin-bottom:0;margin-left:auto}
    .sidebar-login-btn{width:auto;padding:5px 14px}
    .feed-main{flex:1;min-height:0}

    .games-select{padding-top:calc(var(--toolbar-h) + var(--safe-top) + 10px)}
    .games-grid{grid-template-columns:1fr;max-width:320px}
    .games-play{max-width:95%}
    .gomoku-board{width:min(320px,82vw);height:min(320px,82vw);padding:5px}

    .admin-panels{grid-template-columns:1fr}
    .nav-dots{right:6px;gap:7px}
    .nav-dot{width:7px;height:7px}
}

/* ---- 第三级：大屏手机 <=640px (iPhone 17 Pro / 17 / 16 Pro Max 等) ---- */
@media (max-width:640px){
    .top-toolbar{
        height:40px;
        height:calc(40px + var(--safe-top));
        padding:0 10px;
        padding-top:var(--safe-top);
    }
    :root{--toolbar-h:40px}

    .hero-layout{
        width:min(94%,640px);
        padding:4px 0 24px;
    }
    .hero-badge{font-size:.7rem;padding:5px 12px;margin-bottom:16px}
    .hero-title{margin-bottom:12px}
    .hero-title .title-line{font-size:clamp(1.35rem,5.5vw,2rem)}
    .hero-desc{font-size:.76rem;max-width:300px;margin-bottom:18px}
    .hero-timer{gap:5px}
    .timer-block{min-width:52px;padding:9px 10px;border-radius:var(--radius-sm)}
    .timer-num{font-size:1.1rem}
    .timer-label{font-size:.6rem}
    .hero-since{font-size:.73rem}
    .hero-hearts{display:none}
    .scroll-hint{bottom:10px;font-size:.6rem}

    .gallery-layout{
        width:min(96%,900px);gap:12px;
        padding-top:calc(var(--toolbar-h) + var(--safe-top) + 8px);
    }
    .gallery-stage{gap:6px}
    .gallery-arrow{width:30px;height:30px}
    .gallery-pagination{gap:6px}
    .gallery-dots{gap:5px}
    .gallery-dot{width:6px;height:6px}
    .gallery-dot.active{width:16px}
    .gallery-slide-overlay{padding:20px 16px 14px}

    .feed-layout{padding-top:calc(var(--toolbar-h) + var(--safe-top) + 6px)}
    .feed-composer{padding:12px 14px}
    .composer-bottom{flex-wrap:wrap;gap:8px}
    .composer-actions{width:100%;justify-content:space-between}
    .post-card{padding:12px 14px}

    .games-select{
        width:min(96%,600px);gap:20px;
        padding-top:calc(var(--toolbar-h) + var(--safe-top) + 8px);
    }
    .game-card-inner{padding:20px 14px;gap:12px}
    .game-icon{width:48px;height:48px;font-size:1.5rem}
    .game-name{font-size:.92rem}
    .gomoku-board{width:min(300px,80vw);height:min(300px,80vw);padding:4px}

    .nav-dots{right:4px;gap:7px}
    .nav-dot{width:6px;height:6px}
}

/* ---- 第四级：小屏手机 <=480px (iPhone SE) ---- */
@media (max-width:480px){
    .top-toolbar{
        height:38px;
        height:calc(38px + var(--safe-top));
        padding:0 8px;
        padding-top:var(--safe-top);
    }
    :root{--toolbar-h:38px}

    .hero-layout{width:min(96%,640px);padding:2px 0 20px}
    .hero-badge{font-size:.68rem;padding:4px 10px;margin-bottom:14px}
    .hero-title .title-line{font-size:clamp(1.2rem,5vw,1.7rem)}
    .hero-desc{font-size:.73rem;max-width:260px;margin-bottom:16px;line-height:1.7}
    .timer-block{min-width:46px;padding:7px 8px;border-radius:var(--radius-sm)}
    .timer-num{font-size:1rem}
    .hero-since{font-size:.7rem}
    .scroll-hint{bottom:8px;font-size:.58rem}

    .gallery-layout{gap:10px;padding-top:calc(var(--toolbar-h) + var(--safe-top) + 6px)}
    .gallery-arrow{width:28px;height:28px}
    .gallery-slide-overlay{padding:16px 12px 12px}
    .gallery-slide-title{font-size:.95rem}
    .section-title{font-size:1.3rem}

    .feed-layout{gap:8px;padding-top:calc(var(--toolbar-h) + var(--safe-top) + 4px)}
    .user-card{padding:12px 10px;gap:8px}
    .user-card-avatar{width:34px;height:34px}
    .user-card-name{font-size:.83rem}
    .stat-num{font-size:.95rem}
    .feed-composer{padding:10px 12px}
    .composer-input{font-size:.82rem}
    .btn-post{padding:6px 14px;font-size:.76rem}

    .games-grid{max-width:280px}
    .games-select{padding-top:calc(var(--toolbar-h) + var(--safe-top) + 6px)}
    .game-card-inner{padding:16px 12px;gap:10px}
    .game-icon{width:40px;height:40px;font-size:1.3rem}
    .gomoku-board{width:min(270px,78vw);height:min(270px,78vw);padding:3px}
    .games-play{width:98%}

    .modal-content{padding:22px 18px;width:94%}
}

/* ---- 第五级：极小屏 <=380px ---- */
@media (max-width:380px){
    .hero-title .title-line{font-size:clamp(1.1rem,5vw,1.4rem)}
    .hero-timer{gap:4px}
    .timer-block{min-width:42px;padding:6px 7px}
    .timer-num{font-size:.9rem}
    .timer-label{font-size:.58rem}
    .gomoku-board{width:min(240px,76vw);height:min(240px,76vw);padding:2px}
    .section-title{font-size:1.2rem}
}