/* ============================================================
   yakisite — 极简个人主页样式
   视觉语言：大量留白 / 细边框 / 柔和阴影 / 克制动效 / 响应式
   ============================================================ */

:root {
    --bg: #ffffff;
    --bg-soft: #fafafa;
    --ink: #1a1a1a;
    --ink-soft: #5f6368;
    --ink-faint: #9aa0a6;
    --line: #ececec;
    --accent: #2e7d32;      /* 棒球绿 */
    --accent-soft: #e8f5e9;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .05);
    --max-w: 720px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
            "Hiragino Sans GB", "Microsoft YaHei", Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, .82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.nav {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand {
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -.2px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ink);
}

.brand-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
}

.nav-links {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.nav-links a {
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 14.5px;
    color: var(--ink-soft);
    transition: color .2s ease, background .2s ease;
}

.nav-links a:hover {
    color: var(--ink);
    background: var(--bg-soft);
}

.nav-links a.active {
    color: var(--accent);
    background: var(--accent-soft);
    font-weight: 600;
}

/* ---------- 主体 ---------- */
.page {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 72px 24px 96px;
}

.page--wide {
    max-width: 860px;
}

/* 首页 hero */
.hero {
    padding: 40px 0 24px;
}

.hero .eyebrow {
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 20px;
    animation: fadeUp .6s ease both;
}

.hero h1 {
    font-size: 44px;
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -.02em;
    margin: 0 0 20px;
    animation: fadeUp .6s .06s ease both;
}

.hero .lead {
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 560px;
    margin: 0;
    animation: fadeUp .6s .12s ease both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 区块 ---------- */
.section {
    margin-top: 56px;
}

.section-title {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .5px;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin: 0 0 18px;
}

/* ---------- 项目卡片 ---------- */
.project-card + .project-card {
    margin-top: 12px;
}
.project-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
    box-shadow: var(--shadow);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    animation: fadeUp .6s .18s ease both;
}

.project-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 0 2px 4px rgba(0, 0, 0, .04), 0 16px 40px rgba(46, 125, 50, .08);
}

.project-icon {
    flex: 0 0 auto;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, #1b5e20, #43a047);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    overflow: hidden;
}

.project-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

/* 沟通室图标：图片自带圆角的方形画布四角会露出底色 →
 * 略放大让自带圆角边缘顶出容器裁剪（overflow:hidden 已开），只留实心主体；
 * 再以 inset 阴影加一圈蓝色细边（沿容器圆角走，四角干净）。 */
.project-icon.chatroom-icon {
    background: transparent;
    border-radius: 12px;
    box-shadow: inset 0 0 0 1.5px #7aa2ff;
}
.project-icon.chatroom-icon img {
    transform: scale(1.18);
    border-radius: 0;
}

.project-body {
    flex: 1 1 auto;
}

.project-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-title .arrow {
    font-size: 15px;
    color: var(--accent);
    transition: transform .25s ease;
}

.project-card:hover .project-title .arrow {
    transform: translateX(4px);
}

.project-desc {
    margin: 0;
    font-size: 14.5px;
    color: var(--ink-soft);
}

.project-tag {
    display: inline-block;
    margin-top: 10px;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
}

/* ---------- 联系列表 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 4px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
    transition: transform .22s ease, border-color .22s ease, background .22s ease;
    animation: fadeUp .6s var(--delay, .24s) ease both;
}

.contact-item:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    background: var(--bg-soft);
}

.contact-ico {
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    border-radius: 10px;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.contact-label {
    font-size: 12.5px;
    color: var(--ink-faint);
    display: block;
    line-height: 1.4;
}

.contact-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    word-break: break-all;
}

/* ---------- 关于页 ---------- */
.about-hero {
    padding: 24px 0 8px;
}

.about-hero h1 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -.02em;
    margin: 0 0 16px;
    animation: fadeUp .5s ease both;
}

.about-hero .lead {
    color: var(--ink-soft);
    font-size: 16.5px;
    max-width: 600px;
    animation: fadeUp .5s .08s ease both;
}

.prose p {
    color: var(--ink-soft);
    font-size: 15.5px;
    margin: 0 0 14px;
    animation: fadeUp .5s var(--d, .1s) ease both;
}

.prose .hi {
    color: var(--ink);
    font-weight: 600;
}

.divider {
    height: 1px;
    background: var(--line);
    margin: 40px 0;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-size: 13px;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--ink-soft);
    transition: border-color .2s ease, color .2s ease, background .2s ease;
    animation: fadeUp .5s var(--d, .14s) ease both;
}

.tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}

/* ---------- 联系页 ---------- */
.contact-hero h1 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -.02em;
    margin: 0 0 16px;
    animation: fadeUp .5s ease both;
}

.contact-hero .lead {
    color: var(--ink-soft);
    font-size: 16.5px;
    animation: fadeUp .5s .08s ease both;
}

.contact-list {
    margin-top: 40px;
    display: grid;
    gap: 14px;
}

.contact-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: transform .22s ease, border-color .22s ease, background .22s ease;
    animation: fadeUp .5s var(--delay, .12s) ease both;
}

.contact-row:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    background: var(--bg-soft);
}

.contact-row .ico {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    border-radius: 10px;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.contact-row .meta {
    flex: 1;
}

.contact-row .meta .label {
    font-size: 12.5px;
    color: var(--ink-faint);
    display: block;
}

.contact-row .meta .value {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    word-break: break-all;
}

.contact-row .copy {
    flex: 0 0 auto;
    font-size: 12.5px;
    padding: 6px 14px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--ink-soft);
    cursor: pointer;
    transition: all .2s ease;
}

.contact-row .copy:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}

/* ---------- 页脚 ---------- */
.site-footer {
    border-top: 1px solid var(--line);
    padding: 32px 24px;
    text-align: center;
    color: var(--ink-faint);
    font-size: 13.5px;
}

/* 页脚公安备案（版权下方，约两行间距，居中） */
.beian {
    display: block;
    margin-top: 28px;
    font-size: 12px;
}

.beian a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--ink-soft);
    transition: color .2s ease;
}

.beian a:hover {
    color: var(--accent);
}

.beian .beian-icon {
    width: 1.4em;
    height: 1.4em;
    display: block;
    flex: 0 0 auto;
}

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
    .hero h1 {
        font-size: 32px;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .nav-links a {
        padding: 6px 9px;
        font-size: 13.5px;
    }
    .brand {
        font-size: 15.5px;
    }
}