/*
Theme Name: 蟬知夏 ChanZhiXia
Theme URI: https://www.charliechacha.com
Author: charliechacha
Author URI: https://www.charliechacha.com
Description: 溫暖米白日系風格的個人部落格主題
Version: 1.3
Requires at least: 5.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: chanzhi
*/

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
img { max-width:100%; height:auto; display:block; }
a { text-decoration:none; }

:root {
  --cream:      #f9f6f0;
  --warm-white: #f3efe6;
  --paper:      #ece7db;
  --tan:        #c4ae8f;
  --accent:     #9b7e5a;
  --warm-brown: #7a6044;
  --dark:       #2e2318;
  --text:       #3a2c20;
  --text-light: #6e5c4a;
  --border:     #ddd6c8;
  --green-note: #5a8a5e;
}

body {
  background: var(--cream);
  color: var(--text);
  font-family: 'Noto Sans TC', sans-serif;
  font-weight: 400;
  line-height: 1.95;
  font-size: 17px;
}

body::after {
  content:''; position:fixed; inset:0; pointer-events:none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  z-index:9999; opacity:.4;
}

/* ── NAV ── */
.site-header {
  position:fixed; top:0; left:0; right:0; z-index:200;
  height:64px; background:rgba(249,246,240,0.95);
  backdrop-filter:blur(14px); border-bottom:1px solid var(--border);
  display:flex; align-items:center; padding:0 60px; justify-content:space-between;
}
.site-logo { display:flex; flex-direction:column; gap:2px; text-decoration:none; }
.logo-zh { font-family:'Noto Serif TC',serif; font-size:18px; font-weight:500; color:var(--dark); letter-spacing:0.12em; line-height:1; }
.logo-en { font-family:'Lora',serif; font-style:italic; font-size:12px; color:var(--accent); letter-spacing:0.06em; }

.nav-toggle {
  display:none; background:none; border:none; cursor:pointer;
  padding:8px; flex-direction:column; gap:5px;
}
.nav-toggle span { display:block; width:24px; height:2px; background:var(--dark); transition:all .3s ease; }
.nav-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity:0; }
.nav-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

.main-nav ul { display:flex; gap:32px; list-style:none; }
.main-nav a { color:var(--text-light); font-size:15px; font-weight:400; letter-spacing:0.08em; transition:color .25s; position:relative; }
.main-nav a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:1px; background:var(--accent); transition:width .3s ease; }
.main-nav a:hover, .main-nav .current-menu-item a { color:var(--accent); }
.main-nav a:hover::after, .main-nav .current-menu-item a::after { width:100%; }

/* ── HERO ── */
.hero-section {
  margin-top:64px; min-height:calc(100vh - 64px);
  display:flex; align-items:center; padding:80px 60px;
  position:relative; overflow:hidden;
}
.hero-section::before {
  content:''; position:absolute; top:0; right:0; width:50%; height:100%;
  background: repeating-linear-gradient(90deg,transparent,transparent 59px,rgba(180,160,130,0.07) 59px,rgba(180,160,130,0.07) 60px);
  pointer-events:none;
}
.hero-inner { max-width:1080px; margin:0 auto; width:100%; display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:center; }

.hero-kana { font-family:'Noto Serif TC',serif; font-size:17px; font-weight:500; color:var(--dark); letter-spacing:0.22em; margin-bottom:28px; display:flex; align-items:center; gap:14px; }
.hero-kana::before { content:''; display:block; width:28px; height:1px; background:var(--accent); }
.hero-title { font-family:'Noto Serif TC',serif; font-size:56px; font-weight:400; color:var(--dark); line-height:1.2; letter-spacing:0.04em; margin-bottom:32px; }
.hero-title em { font-style:normal; color:var(--accent); position:relative; display:inline-block; }
.hero-title em::after { content:''; position:absolute; bottom:6px; left:0; right:0; height:2px; background:linear-gradient(to right,var(--accent),transparent); }
.hero-tagline { font-family:'Noto Serif TC',serif; font-size:17px; font-weight:400; color:var(--text-light); line-height:2.1; margin-bottom:44px; letter-spacing:0.06em; }
.hero-cta { display:flex; gap:16px; flex-wrap:wrap; }

.identity-card { background:var(--warm-white); border:1px solid var(--border); padding:48px 44px; position:relative; }
.identity-card::before { content:'關於我'; position:absolute; top:-12px; left:32px; background:var(--cream); padding:0 12px; font-size:13px; letter-spacing:0.14em; color:var(--accent); }
.identity-name { font-family:'Noto Serif TC',serif; font-size:24px; font-weight:500; color:var(--dark); margin-bottom:4px; letter-spacing:0.08em; }
.identity-sub { font-size:13px; color:var(--tan); letter-spacing:0.1em; margin-bottom:28px; font-family:'Lora',serif; font-style:italic; }
.identity-bio { font-size:15px; line-height:2.1; color:var(--text); margin-bottom:28px; letter-spacing:0.04em; }
.identity-tags { display:flex; flex-wrap:wrap; gap:8px; }
.identity-tag { display:inline-block; padding:6px 16px; background:var(--paper); border:1px solid var(--border); font-size:13px; color:var(--text-light); letter-spacing:0.08em; }
.identity-tag.green { background:#eef3ee; border-color:#b8d4b8; color:var(--green-note); }

/* ── BUTTONS ── */
.btn { display:inline-block; padding:14px 32px; font-size:14px; letter-spacing:0.12em; transition:all .25s; cursor:pointer; border:none; font-family:'Noto Sans TC',sans-serif; font-weight:400; }
.btn-solid { background:var(--dark); color:var(--cream); }
.btn-solid:hover { background:var(--warm-brown); transform:translateY(-2px); color:var(--cream); }
.btn-ghost { background:transparent; border:1px solid var(--tan); color:var(--warm-brown); }
.btn-ghost:hover { background:var(--warm-brown); color:var(--cream); border-color:var(--warm-brown); transform:translateY(-2px); }

.full-divider { height:1px; background:linear-gradient(to right,transparent,var(--border) 20%,var(--border) 80%,transparent); }

/* ── SECTIONS ── */
.site-section { padding:80px 60px; max-width:1080px; margin:0 auto; }
.section-header { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:48px; border-bottom:1px solid var(--border); padding-bottom:20px; }
.section-title { font-family:'Noto Serif TC',serif; font-size:15px; font-weight:500; letter-spacing:0.2em; color:var(--accent); }
.section-more { font-size:13px; color:var(--text-light); letter-spacing:0.08em; transition:color .2s; }
.section-more:hover { color:var(--accent); }

/* ── POST LIST ── */
.posts-list { display:flex; flex-direction:column; }
.post-row { display:grid; grid-template-columns:160px 1fr auto; align-items:start; gap:36px; padding:32px 0; border-bottom:1px solid var(--border); color:inherit; transition:all .25s; }
.post-row:hover .post-row-title { color:var(--accent); }
.post-row:hover .post-row-arrow { opacity:1; transform:translateX(4px); }

/* 日期：英文格式，斜體，一行 */
.post-row-date { font-size:14px; color:var(--text-light); font-family:'Lora',serif; font-style:italic; letter-spacing:0.06em; padding-top:4px; white-space:nowrap; }

.post-row-cat { display:inline-block; font-size:12px; letter-spacing:0.14em; color:var(--accent); margin-bottom:10px; background:var(--warm-white); padding:4px 12px; border:1px solid var(--border); }
.post-row-title { font-family:'Noto Serif TC',serif; font-size:20px; font-weight:500; color:var(--dark); line-height:1.55; margin-bottom:10px; letter-spacing:0.04em; transition:color .25s; }
.post-row-excerpt { font-size:15px; color:var(--text-light); line-height:1.85; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.post-row-arrow { font-size:18px; color:var(--tan); opacity:0; transition:all .3s ease; align-self:center; }

/* ── QUOTE ── */
.quote-strip { padding:80px 60px; background:var(--warm-white); text-align:center; position:relative; overflow:hidden; }
.quote-strip::before { content:'\201C'; font-family:'Lora',serif; font-size:180px; color:var(--paper); position:absolute; top:-30px; left:40px; line-height:1; pointer-events:none; }
.quote-strip::after { content:'\201D'; font-family:'Lora',serif; font-size:180px; color:var(--paper); position:absolute; bottom:-70px; right:40px; line-height:1; pointer-events:none; }
.quote-text { font-family:'Noto Serif TC',serif; font-size:24px; font-weight:400; color:var(--dark); line-height:1.9; letter-spacing:0.1em; position:relative; z-index:1; max-width:640px; margin:0 auto 20px; }
.quote-source { font-size:14px; color:var(--accent); letter-spacing:0.12em; font-family:'Lora',serif; font-style:italic; }

/* ── CATEGORIES ── */
.categories-bg { background:var(--cream); padding:80px 0; }
.categories-inner { max-width:1080px; margin:0 auto; padding:0 60px; }
.cat-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:16px; }
.cat-item { padding:36px 20px; border:1px solid var(--border); text-align:center; cursor:pointer; transition:all .3s ease; background:var(--warm-white); position:relative; overflow:hidden; display:block; color:inherit; }
.cat-item::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2px; background:var(--accent); transition:width .4s ease; }
.cat-item:hover { transform:translateY(-3px); box-shadow:0 10px 36px rgba(46,35,24,0.08); border-color:var(--tan); }
.cat-item:hover::after { width:100%; }
.cat-emoji { font-size:28px; margin-bottom:14px; display:block; }
.cat-zh { font-family:'Noto Serif TC',serif; font-size:16px; font-weight:500; color:var(--dark); margin-bottom:6px; letter-spacing:0.06em; }
.cat-count { font-size:13px; color:var(--text-light); }

/* ── INVEST ── */
.invest-strip { padding:72px 60px; background:var(--paper); }
.invest-strip-inner { max-width:1080px; margin:0 auto; display:flex; align-items:flex-start; gap:56px; }
.invest-label { flex-shrink:0; writing-mode:vertical-rl; font-family:'Noto Serif TC',serif; font-size:14px; font-weight:500; letter-spacing:0.2em; color:var(--accent); border-right:1px solid var(--tan); padding-right:20px; padding-top:4px; }
.invest-title { font-family:'Noto Serif TC',serif; font-size:26px; font-weight:400; color:var(--dark); margin-bottom:24px; letter-spacing:0.05em; line-height:1.6; }
.invest-points { list-style:none; margin-bottom:28px; }
.invest-points li { font-size:16px; color:var(--text); line-height:1.9; padding:12px 0; border-bottom:1px dashed var(--border); display:flex; align-items:flex-start; gap:14px; letter-spacing:0.04em; }
.invest-points li::before { content:'—'; color:var(--accent); flex-shrink:0; margin-top:2px; }
.invest-note { font-size:15px; color:var(--text-light); font-family:'Noto Serif TC',serif; font-style:italic; letter-spacing:0.06em; margin-bottom:28px; line-height:1.9; }

/* ── ARCHIVE ── */
.archive-header { padding:100px 60px 40px; max-width:1080px; margin:64px auto 0; }
.archive-header h1 { font-family:'Noto Serif TC',serif; font-size:36px; font-weight:500; color:var(--dark); letter-spacing:0.08em; margin-bottom:10px; }
.archive-header p { font-size:16px; color:var(--text-light); }
.archive-list { max-width:1080px; margin:0 auto; padding:0 60px 80px; }

/* ── SINGLE POST ── */
.post-header { padding:100px 60px 48px; max-width:780px; margin:64px auto 0; }
.post-header-cat { display:inline-block; font-size:13px; letter-spacing:0.14em; color:var(--accent); background:var(--warm-white); padding:5px 14px; border:1px solid var(--border); margin-bottom:24px; }
.post-header h1 { font-family:'Noto Serif TC',serif; font-size:36px; font-weight:500; color:var(--dark); line-height:1.45; letter-spacing:0.04em; margin-bottom:24px; }
.post-meta-bar { display:flex; align-items:center; gap:16px; flex-wrap:wrap; font-size:14px; color:var(--text-light); padding-top:24px; border-top:1px solid var(--border); }
.post-content { max-width:780px; margin:0 auto; padding:0 60px 80px; font-size:17px; line-height:2.1; letter-spacing:0.04em; color:var(--text); }
.post-content p { margin-bottom:1.8em; }
.post-content h2 { font-family:'Noto Serif TC',serif; font-size:24px; font-weight:500; color:var(--dark); margin:2.4em 0 0.8em; }
.post-content h3 { font-family:'Noto Serif TC',serif; font-size:20px; font-weight:500; color:var(--warm-brown); margin:2em 0 0.6em; }
.post-content a { color:var(--accent); border-bottom:1px solid var(--tan); transition:border-color .2s; }
.post-content a:hover { border-color:var(--accent); }
.post-content blockquote { margin:2em 0; padding:28px 36px; border-left:3px solid var(--accent); background:var(--warm-white); font-family:'Noto Serif TC',serif; font-size:16px; color:var(--warm-brown); line-height:2; }
.post-content ul, .post-content ol { padding-left:1.8em; margin-bottom:1.8em; }
.post-content li { margin-bottom:0.5em; }
.post-nav { max-width:780px; margin:0 auto; padding:32px 60px 60px; display:flex; justify-content:space-between; gap:32px; border-top:1px solid var(--border); }
.post-nav-item { flex:1; }
.post-nav-item.next { text-align:right; }
.post-nav-label { font-size:13px; color:var(--tan); letter-spacing:0.1em; margin-bottom:8px; }
.post-nav-title { font-family:'Noto Serif TC',serif; font-size:16px; color:var(--dark); letter-spacing:0.04em; line-height:1.55; display:block; transition:color .2s; }
.post-nav-title:hover { color:var(--accent); }

/* ── CONTACT ── */
.contact-page { padding:100px 60px 80px; max-width:680px; margin:64px auto 0; }
.contact-page-header { text-align:center; margin-bottom:56px; }
.contact-page-header h1 { font-family:'Noto Serif TC',serif; font-size:36px; font-weight:400; color:var(--dark); margin-bottom:16px; letter-spacing:0.06em; }
.contact-page-header p { font-size:16px; color:var(--text-light); line-height:2; }
.form-row { margin-bottom:36px; }
.form-label { display:block; font-size:14px; letter-spacing:0.12em; color:var(--text-light); margin-bottom:12px; }
.form-input, .form-textarea { width:100%; padding:14px 0; background:transparent; border:none; border-bottom:1px solid var(--border); font-family:'Noto Sans TC',sans-serif; font-size:16px; font-weight:400; color:var(--text); outline:none; transition:border-color .25s; }
.form-input:focus, .form-textarea:focus { border-bottom-color:var(--accent); }
.form-textarea { resize:none; height:120px; line-height:1.9; }
.form-input::placeholder, .form-textarea::placeholder { color:var(--tan); font-size:15px; }
.form-btn { width:100%; padding:18px; background:var(--dark); color:var(--cream); border:none; font-family:'Noto Sans TC',sans-serif; font-size:14px; letter-spacing:0.16em; cursor:pointer; margin-top:16px; transition:all .25s; }
.form-btn:hover { background:var(--warm-brown); transform:translateY(-1px); }
.form-success { display:none; text-align:center; padding:40px; background:var(--warm-white); border:1px solid var(--border); margin-top:32px; }
.form-success-title { font-family:'Noto Serif TC',serif; font-size:22px; color:var(--dark); margin-bottom:10px; }
.form-success-sub { font-size:15px; color:var(--text-light); }

/* ── PAGINATION ── */
.pagination { display:flex; justify-content:center; gap:8px; padding:48px 0; flex-wrap:wrap; }
.pagination a, .pagination span { padding:12px 20px; border:1px solid var(--border); font-size:14px; color:var(--text-light); transition:all .2s; }
.pagination a:hover { border-color:var(--accent); color:var(--accent); }
.pagination .current { background:var(--dark); color:var(--cream); border-color:var(--dark); }

/* ── FOOTER ── */
.site-footer { background:var(--dark); padding:64px 60px 40px; }
.footer-inner { max-width:1080px; margin:0 auto; display:grid; grid-template-columns:1fr 1fr 1fr; gap:48px; padding-bottom:48px; border-bottom:1px solid rgba(249,246,240,0.1); margin-bottom:36px; }
.footer-brand-name { font-family:'Noto Serif TC',serif; font-size:20px; font-weight:500; color:var(--cream); letter-spacing:0.1em; margin-bottom:4px; }
.footer-brand-en { font-family:'Lora',serif; font-style:italic; font-size:13px; color:var(--tan); margin-bottom:18px; }
.footer-bio { font-size:14px; color:rgba(249,246,240,0.5); line-height:2; }
.footer-nav-title { font-size:13px; letter-spacing:0.14em; color:var(--tan); margin-bottom:20px; }
.footer-nav-list { list-style:none; display:flex; flex-direction:column; gap:12px; }
.footer-nav-list a { color:rgba(249,246,240,0.55); font-size:14px; transition:color .2s; }
.footer-nav-list a:hover { color:var(--tan); }
.footer-motto { font-family:'Noto Serif TC',serif; font-size:16px; color:rgba(249,246,240,0.4); line-height:2.2; letter-spacing:0.1em; }
.footer-bottom { max-width:1080px; margin:0 auto; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:8px; }
.footer-copy { font-size:13px; color:rgba(249,246,240,0.3); letter-spacing:0.06em; }

/* ── FADE IN ── */
.fade-in { opacity:1; transform:translateY(0); transition:opacity .7s ease, transform .7s ease; }
.fade-in.animate { opacity:0; transform:translateY(20px); }
.fade-in.animate.visible { opacity:1; transform:translateY(0); }

/* ════════════════════════════
   完整手機版 Mobile Layout
   ════════════════════════════ */
@media (max-width: 900px) {
  .site-header { padding:0 20px; height:60px; }
  .nav-toggle { display:flex; }
  .main-nav {
    display:none; position:fixed;
    top:60px; left:0; right:0; bottom:0; z-index:190;
    background:rgba(249,246,240,0.98);
    flex-direction:column; justify-content:center; align-items:center;
  }
  .main-nav.open { display:flex; }
  .main-nav ul { flex-direction:column; gap:0; text-align:center; width:100%; }
  .main-nav li { border-bottom:1px solid var(--border); }
  .main-nav a { display:block; padding:22px 24px; font-size:18px; color:var(--text); }
  .main-nav a::after { display:none; }

  .hero-section { padding:48px 24px 64px; min-height:auto; margin-top:60px; }
  .hero-inner { grid-template-columns:1fr; gap:40px; }
  .hero-title { font-size:40px; }
  .hero-kana { font-size:15px; }
  .hero-tagline { font-size:16px; }
  .identity-card { padding:36px 28px; }

  .site-section { padding:56px 24px; }
  .categories-inner { padding:0 24px; }

  .post-row { grid-template-columns:1fr; gap:8px; padding:28px 0; }
  .post-row-arrow { display:none; }
  .post-row-title { font-size:18px; }
  .post-row-excerpt { font-size:14px; }

  .cat-grid { grid-template-columns:repeat(3,1fr); gap:12px; }

  .invest-strip { padding:48px 24px; }
  .invest-strip-inner { flex-direction:column; gap:20px; }
  .invest-label { writing-mode:horizontal-tb; border-right:none; border-bottom:1px solid var(--tan); padding-right:0; padding-bottom:14px; }
  .invest-title { font-size:22px; }

  .quote-strip { padding:60px 24px; }
  .quote-text { font-size:20px; }
  .quote-strip::before { font-size:120px; left:16px; }
  .quote-strip::after  { font-size:120px; right:16px; }

  .archive-header { padding:80px 24px 32px; margin-top:60px; }
  .archive-list { padding:0 24px 60px; }
  .post-header { padding:80px 24px 36px; margin-top:60px; }
  .post-header h1 { font-size:28px; }
  .post-content { padding:0 24px 60px; font-size:16px; }
  .post-nav { padding:28px 24px 48px; flex-direction:column; gap:24px; }
  .post-nav-item.next { text-align:left; }

  .contact-page { padding:80px 24px 60px; margin-top:60px; }
  .contact-page-header h1 { font-size:28px; }

  .footer-inner { grid-template-columns:1fr; gap:36px; }
  .site-footer { padding:48px 24px 32px; }
  .footer-bottom { flex-direction:column; text-align:center; }
}

@media (max-width: 480px) {
  .hero-title { font-size:34px; }
  .hero-tagline { font-size:15px; }
  .cat-grid { grid-template-columns:repeat(2,1fr); }
  .hero-cta { flex-direction:column; }
  .btn { text-align:center; width:100%; }
  .post-row-title { font-size:17px; }
  .quote-text { font-size:18px; }
}