/* ============================================================
   Nairocy Web — 主站 (nairocy.com)
   线框撞色卡片（照抄 Nacy Test/1.html 线框风格）
   整页滑动吸附：CSS scroll-snap（原生惯性，超过阈值自动吸附）
   三页：Hero / 站点 / 关于
   ============================================================ */

:root {
    /* 撞色主色板（主色 / 深色边框） */
    --c-tools:       #ff6b35;
    --c-tools-dark:  #9a3412;
    --c-music:       #7c5cff;
    --c-music-dark:  #5b21b6;
    --c-blog:        #0ea5e9;
    --c-blog-dark:   #075985;
    --c-nano:        #00c2a8;
    --c-nano-dark:   #0f766e;
    --c-games:       #ff4d6d;
    --c-games-dark:  #9f1239;
    --c-me:          #4c8dff;
    --c-me-dark:     #1d4ed8;

    /* 中性色 */
    --text:        #1a1d29;
    --text-soft:   #5b6072;
    --card-bg:     rgba(255, 255, 255, 0.92);   /* 浅色主题：白卡 */
    --card-text:   #1a1d29;                     /* 卡片主文字 */
    --card-text-soft: #5b6072;                  /* 卡片次级文字 */
    --card-line:   #373b52;                     /* 默认深色边框 */
    --shadow-hard: rgba(0, 0, 0, 0.35);         /* 硬阴影主色 */
    --mask:        rgba(244, 245, 250, 0.80);
    --mask-hero:   linear-gradient(180deg, rgba(13, 15, 26, 0.55) 0%, rgba(13, 15, 26, 0.35) 55%, rgba(13, 15, 26, 0.80) 100%);
    --bg-solid:    #f4f5fa;
}

[data-theme="dark"] {
    --text:        #eef0f8;
    --text-soft:   #a6abc0;
    --card-bg:     rgba(10, 12, 20, 0.78);      /* 深色主题：黑卡 */
    --card-text:   #eef0f8;
    --card-text-soft: rgba(255, 255, 255, 0.62);
    --card-line:   #2e3248;
    --shadow-hard: rgba(0, 0, 0, 0.65);
    --mask:        rgba(12, 14, 24, 0.84);
    --mask-hero:   linear-gradient(180deg, rgba(8, 9, 16, 0.62) 0%, rgba(8, 9, 16, 0.40) 55%, rgba(10, 12, 20, 0.88) 100%);
    --bg-solid:    #10121c;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    color: var(--text);
    line-height: 1.65;
    height: 100vh;
    overflow-y: scroll;
    overscroll-behavior: none;
    background-color: var(--bg-solid);
    transition: background-color 0.3s, color 0.3s;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ============================================================
   背景层：bg.jpg 固定 + 纯色遮罩（不用 backdrop-filter）
   ============================================================ */
.bg-layer {
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image: url('bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: translateZ(0);
    will-change: transform;
}

.bg-mask {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-color: var(--mask);
    transition: background-color 0.3s;
}

/* 轻量 canvas 粒子层（固定，不随滚动） */
#particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.55;
}

/* 主体内容在粒子之上 */
main {
    position: relative;
    z-index: 1;
}

/* ============================================================
   整页：每一屏 = 一个 .snap-page
   ============================================================ */
.snap-page {
    min-height: 100vh;
    position: relative;
}

/* ============================================================
   模块：巨型水印字（通用，各页配色不同）
   ============================================================ */
.page-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-4deg);
    font-size: clamp(9rem, 26vw, 20rem);
    font-weight: 900;
    letter-spacing: 0.06em;
    white-space: nowrap;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 2px var(--wm-color, rgba(0, 0, 0, 0.35));
    text-stroke: 2px var(--wm-color, rgba(0, 0, 0, 0.35));
    opacity: 0.45;
    pointer-events: none;
    z-index: 0;
    user-select: none;
}

/* 第 1 页：黑/白随主题（浅色=黑，深色=白） */
.hero-watermark {
    --wm-color: rgba(0, 0, 0, 0.30);
}

[data-theme="dark"] .hero-watermark {
    --wm-color: rgba(255, 255, 255, 0.42);
}

/* 第 2 页：青绿 */
.sites-watermark {
    --wm-color: rgba(0, 194, 168, 0.42);
}

/* 水印在内容之下，但 hero 的 ::before 遮罩之上 */
.hero .page-watermark,
.sites-page .page-watermark {
    z-index: 0;
}

/* 内容元素提升到水印之上（保留各自的 position，不覆盖） */
.hero .hero-avatar,
.hero h1,
.hero .hero-tagline,
.sites-page .page-inner {
    position: relative;
    z-index: 1;
}

/* 翻页按钮保持 absolute，仅提升层级 */
.hero .page-nav,
.sites-page .page-nav {
    z-index: 2;
}

/* ============================================================
   模块：主题切换按钮
   ============================================================ */
.theme-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    width: 42px;
    height: 42px;
    border: 2px solid var(--card-line);
    background: var(--card-bg);
    color: var(--card-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 3px 3px 0 var(--shadow-hard);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.theme-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 5px 5px 0 var(--shadow-hard);
}

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

/* ============================================================
   模块：翻页按钮（SCROLL，每页底部，最后一页没有）
   ============================================================ */
.page-nav {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: none;
    border: none;
    font-family: inherit;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 18px;
    transition: color 0.2s ease, transform 0.2s ease;
}

.page-nav:hover {
    color: #fff;
    transform: translateX(-50%) translateY(3px);
}

.page-nav .arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    animation: scrollBob 1.6s ease-in-out infinite;
}

@keyframes scrollBob {
    0%, 100% { transform: rotate(45deg) translate(0, 0); }
    50%      { transform: rotate(45deg) translate(5px, 5px); }
}

/* 非 Hero 页的翻页按钮用页面文字色 */
.snap-page:not(.hero) .page-nav {
    color: var(--text-soft);
}

.snap-page:not(.hero) .page-nav:hover {
    color: var(--text);
}

/* ============================================================
   模块：Hero 区（第 1 页）
   ============================================================ */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding: 3rem 1.5rem;
    isolation: isolate;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--mask-hero);
}

.hero-avatar {
    width: 128px;
    height: 128px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
    margin-bottom: 1.6rem;
    animation: heroIn 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.hero h1 {
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    line-height: 1.1;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    animation: heroIn 0.9s 0.12s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.hero-tagline {
    margin-top: 1rem;
    max-width: 640px;
    font-size: clamp(1rem, 2.4vw, 1.2rem);
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
    animation: heroIn 0.9s 0.24s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

@keyframes heroIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   模块：页面内容容器
   ============================================================ */
.page-inner {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 2rem 1.5rem 2.2rem;
}

.sites-page .page-inner {
    padding: 1.6rem 1.5rem 1.8rem;
}

.sites-page,
.about-page {
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-head {
    text-align: center;
    margin-bottom: 1.8rem;
}

.section-head .en {
    font-size: 0.8rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--text-soft);
    display: block;
    margin-bottom: 0.4rem;
}

.section-head h2 {
    font-size: clamp(1.4rem, 3.2vw, 1.9rem);
    font-weight: 800;
    letter-spacing: 0.01em;
}

.section-head .sub {
    margin-top: 0.4rem;
    color: var(--text-soft);
    font-size: 0.88rem;
}

/* ============================================================
   模块：站点卡片矩阵 —— 线框撞色 · 瀑布式挂画排布
   像墙上挂的画框：错落高度 + 轻微旋转，hover 摆正上浮
   ============================================================ */
.site-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    gap: 1.1rem;
    max-width: 1000px;
    margin: 0 auto;
}

.site-card {
    position: relative;
    flex: 0 1 calc(33.333% - 0.8rem);
    min-width: 210px;
    display: block;
    padding: 0.9rem 0.95rem 0.9rem;
    background: var(--card-bg);
    border: 3px solid var(--card-dark, var(--card-line));
    box-shadow:
        4px 4px 0 var(--shadow-hard),
        8px 8px 0 color-mix(in srgb, var(--card-color) 14%, transparent);
    /* 入场：错峰上浮（由 JS 添加 .in 触发） */
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.55s cubic-bezier(0.22, 0.61, 0.36, 1),
        transform 0.55s cubic-bezier(0.22, 0.61, 0.36, 1),
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

/* 瀑布错落：每张卡独立偏移 + 旋转（挂画感） */
.site-card:nth-child(1) { margin-top: 0;     rotate: -1.2deg; transition-delay: 0.05s; }
.site-card:nth-child(2) { margin-top: 1.1rem; rotate:  0.8deg; transition-delay: 0.15s; }
.site-card:nth-child(3) { margin-top: 0.4rem; rotate: -0.5deg; transition-delay: 0.25s; }
.site-card:nth-child(4) { margin-top: 1.4rem; rotate:  1.1deg; transition-delay: 0.35s; }
.site-card:nth-child(5) { margin-top: 0.7rem; rotate: -0.9deg; transition-delay: 0.45s; }

.site-card.in {
    opacity: 1;
    transform: translateY(0);
}

/* hover：摆正 + 位移 + 边框亮色 + 硬阴影加深 */
.site-card:hover {
    border-color: var(--card-color);
    rotate: 0deg;
    transform: translate(-4px, -4px);
    box-shadow:
        8px 8px 0 var(--shadow-hard),
        12px 12px 0 color-mix(in srgb, var(--card-color) 22%, transparent);
    transition-delay: 0s;
}

/* 像素角标：左上 + 右下，hover 显现 */
.site-card::before {
    content: '';
    position: absolute;
    top: -5px; left: -5px;
    width: 14px; height: 14px;
    background: var(--card-color);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.site-card::after {
    content: '';
    position: absolute;
    bottom: -5px; right: -5px;
    width: 14px; height: 14px;
    background: var(--card-color);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.site-card:hover::before,
.site-card:hover::after { opacity: 0.9; }

/* 图标：主色线条，无背景块 */
.site-card .card-icon {
    display: block;
    width: 22px;
    height: 22px;
    margin-bottom: 0.5rem;
    color: var(--card-color);
    filter: drop-shadow(0 0 6px color-mix(in srgb, var(--card-color) 55%, transparent));
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.site-card:hover .card-icon {
    transform: scale(1.12) rotate(-6deg);
}

.site-card .card-icon svg {
    width: 100%;
    height: 100%;
}

.site-card h3 {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--card-text);
    margin-bottom: 0.1rem;
}

.site-card .card-domain {
    font-size: 0.6rem;
    color: var(--card-text-soft);
    font-family: Consolas, 'Courier New', monospace;
    letter-spacing: 0.03em;
}

.site-card p {
    font-size: 0.72rem;
    color: var(--card-text-soft);
    line-height: 1.38;
    margin: 0.45rem 0 0.55rem;
    min-height: 1.9em;
}

.site-card .card-go {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--card-color);
    transition: gap 0.2s ease;
}

.site-card:hover .card-go {
    gap: 0.75rem;
}

.site-card .card-go svg {
    width: 13px;
    height: 13px;
}

/* 状态徽标：线框风格 + 闪烁 */
.site-card .badge {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 0.2em 0.6em;
    border: 2px solid var(--card-color);
    color: var(--card-color);
    background: transparent;
    animation: badgeBlink 2.4s ease-in-out infinite;
}

@keyframes badgeBlink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.4; }
}

/* ============================================================
   模块：关于我（第 3 页，海报式张扬布局）
   巨型水印字 + 大容器斜放 + 撞色贴纸堆 + 装饰元素
   ============================================================ */
.about-page {
    display: flex;
    align-items: stretch;
    justify-content: center;
    flex-direction: column;
    overflow: hidden;
}

.about-page .page-inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
    padding: 1rem 1.5rem 0.5rem;
    max-width: 1180px;
}

/* 海报两栏（提高特异性，覆盖 page-inner 的 flex） */
.about-page .page-inner.about-poster {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 2.4rem;
    align-items: stretch;
    position: relative;
    z-index: 1;
}

.about-page footer {
    margin-top: auto;
    flex-shrink: 0;
    padding-bottom: 1.2rem;
}

/* ---------- 巨型水印字背景 ---------- */
.about-bg-word {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-4deg);
    font-size: clamp(9rem, 26vw, 20rem);
    font-weight: 900;
    letter-spacing: 0.06em;
    white-space: nowrap;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 2px color-mix(in srgb, var(--c-blog) 26%, transparent);
    text-stroke: 2px color-mix(in srgb, var(--c-blog) 26%, transparent);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    user-select: none;
}

/* ---------- 大容器：个人信息（斜放冲突） ---------- */
.about-main {
    position: relative;
    background: var(--card-bg);
    border: 3px solid var(--c-blog-dark);
    box-shadow:
        8px 8px 0 var(--shadow-hard),
        16px 16px 0 color-mix(in srgb, var(--c-blog) 16%, transparent);
    padding: 1.6rem 2rem 1.5rem;
    rotate: -1.8deg;
    transition: transform 0.25s ease, box-shadow 0.25s ease, rotate 0.25s ease;
    overflow: hidden;
}

.about-main:hover {
    rotate: 0deg;
    transform: translateY(-4px);
    box-shadow:
        12px 12px 0 var(--shadow-hard),
        20px 20px 0 color-mix(in srgb, var(--c-blog) 20%, transparent);
}

/* 顶部撞色条 */
.about-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 12px;
    background: linear-gradient(90deg, var(--c-tools), var(--c-music), var(--c-blog), var(--c-nano), var(--c-games));
}

/* ABOUT ME 印章 */
.about-stamp {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.3em;
    color: var(--c-tools);
    border: 2px solid var(--c-tools);
    padding: 0.3em 0.8em;
    margin-bottom: 0.8rem;
    transform: rotate(-2deg);
}

.about-hello {
    font-size: 0.95rem;
    color: var(--card-text-soft);
    letter-spacing: 0.12em;
    margin-bottom: 0.15rem;
}

/* 超大名字 */
.about-name {
    font-size: clamp(2.6rem, 6vw, 3.8rem);
    font-weight: 900;
    line-height: 1.02;
    letter-spacing: 0.01em;
    color: var(--card-text);
    margin-bottom: 0.8rem;
    text-shadow: 4px 4px 0 color-mix(in srgb, var(--c-games) 40%, transparent);
}

.about-desc {
    font-size: 0.86rem;
    color: var(--card-text-soft);
    line-height: 1.6;
    max-width: 32em;
}

.about-desc-2 {
    margin-top: 0.55rem;
}

/* 签名引用 */
.about-quote {
    margin: 0.8rem 0 0;
    padding-left: 0.8rem;
    border-left: 3px solid var(--c-games);
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--card-text);
    line-height: 1.6;
    max-width: 30em;
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--c-blog);
    border: 2px solid var(--c-blog);
    padding: 0.45em 1em;
    background: color-mix(in srgb, var(--c-blog) 10%, transparent);
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.about-link:hover {
    background: var(--c-blog);
    color: #fff;
    transform: translate(-2px, -2px);
}

.about-link svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.about-link:hover svg {
    transform: translateX(4px);
}

/* 撞色装饰星（右上） */
.about-deco-star {
    position: absolute;
    top: -16px;
    right: 40px;
    width: 44px;
    height: 44px;
    color: var(--c-games);
    transform: rotate(12deg);
    animation: starSpin 10s linear infinite;
    filter: drop-shadow(3px 3px 0 var(--shadow-hard));
}

@keyframes starSpin {
    from { transform: rotate(12deg); }
    to   { transform: rotate(372deg); }
}

/* 撞色圆点（左下角） */
.about-deco-dot {
    position: absolute;
    bottom: -14px;
    left: -14px;
    width: 34px;
    height: 34px;
    background: var(--c-nano);
    box-shadow: 3px 3px 0 var(--shadow-hard);
    transform: rotate(8deg);
}

/* ---------- 内包卡片：标签贴纸堆（斜放冲突） ---------- */
.about-tags {
    position: relative;
    background: var(--card-bg);
    border: 3px solid var(--c-music-dark);
    box-shadow:
        8px 8px 0 var(--shadow-hard),
        16px 16px 0 color-mix(in srgb, var(--c-music) 16%, transparent);
    padding: 1.8rem 1.9rem;
    rotate: 1.6deg;
    transition: transform 0.25s ease, box-shadow 0.25s ease, rotate 0.25s ease;
    align-self: center;
    width: 100%;
}

.about-tags:hover {
    rotate: 0deg;
    transform: translateY(-4px);
    box-shadow:
        12px 12px 0 var(--shadow-hard),
        20px 20px 0 color-mix(in srgb, var(--c-music) 20%, transparent);
}

.about-tags h3 {
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    color: var(--card-text);
    margin-bottom: 1.4rem;
}

/* 贴纸堆：错落旋转的撞色贴纸 */
.tags-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    position: relative;
    z-index: 1;
}

.skill {
    display: inline-flex;
    align-items: center;
    font-size: 0.88rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 0.5em 1.1em;
    color: var(--tag-color);
    border: 2px solid var(--tag-color);
    background: var(--card-bg);
    box-shadow: 4px 4px 0 var(--shadow-hard);
    transform: rotate(var(--tilt, 0deg));
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
}

.skill:hover {
    transform: rotate(0deg) translate(-2px, -2px);
    background: var(--tag-color);
    color: #fff;
    box-shadow: 6px 6px 0 var(--shadow-hard);
}

/* 装饰色块（贴纸堆背后） */
.tags-deco {
    position: absolute;
    pointer-events: none;
}

.tags-deco-1 {
    top: -14px;
    right: -14px;
    width: 28px;
    height: 28px;
    background: var(--c-tools);
    box-shadow: 3px 3px 0 var(--shadow-hard);
    transform: rotate(14deg);
}

.tags-deco-2 {
    bottom: -12px;
    left: 30px;
    width: 18px;
    height: 18px;
    background: var(--c-games);
    box-shadow: 3px 3px 0 var(--shadow-hard);
    transform: rotate(-10deg);
}

/* ============================================================
   模块：页脚（放在第 3 页底部）
   ============================================================ */
footer {
    text-align: center;
    padding: 1.5rem 1.5rem 1rem;
    color: var(--text-soft);
    font-size: 0.84rem;
}

footer .footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.4rem;
    margin-bottom: 0.8rem;
}

footer .footer-links a {
    color: var(--text-soft);
    transition: color 0.2s;
}

footer .footer-links a:hover {
    color: var(--card-text);
}

/* ============================================================
   模块：滚动显现动画（transform/opacity，GPU 友好）
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 860px) {
    .about {
        grid-template-columns: 1fr;
    }
    .page-inner {
        padding: 3rem 1.2rem 3.5rem;
    }
    .hero-avatar {
        width: 104px;
        height: 104px;
    }
    #particles {
        opacity: 0.35;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    #particles {
        display: none;
    }
}