/* 枫叶便签官网 扁平化设计 */
:root {
    --primary: #5F9EFE;
    --primary-light: #80b2ff;
    --primary-dark: #4a8ae8;
    --bg: #ffffff;
    --card-bg: #ffffff;
    --sidebar-bg: #f7f8fa;
    --input-bg: #ffffff;
    --text: #1a1a1a;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --border: #e5e7eb;
    --hover: #f3f4f6;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 14px;
    --header-bg: linear-gradient(135deg, #4a8ae8, #5F9EFE);
    --header-text: #ffffff;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei','PingFang SC',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;display:flex;flex-direction:column}
.page-wrap{flex:1 0 auto; margin-top: 100px;}

/* ===== Header ===== */
.site-header{background:var(--header-bg);color:var(--header-text);padding:0 24px;position:fixed;top:0;left:0;right:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.header-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:100px}
.logo-link{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--header-text)}
.header-logo{width:48px;height:48px;object-fit:contain;border-radius:10px}
.header-name{font-size:22px;font-weight:700;letter-spacing:.5px}
.header-nav{display:flex;gap:4px}
.header-nav a{color:rgba(255,255,255,.75);text-decoration:none;padding:10px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;transition:all .15s}
.header-nav a:hover{background:rgba(255,255,255,.15);color:#fff}
.header-nav a.active{background:rgba(255,255,255,.25);color:#fff}
.header-nav-sep{display:inline-block;width:1px;height:24px;background:rgba(255,255,255,.3);align-self:center;margin:0 8px}
#loginBtn,#logoutBtn,#userCenterBtn{cursor:pointer}
#userCenterBtn.active{background:rgba(255,255,255,.25);color:#fff}

/* ===== Hero ===== */
.hero{background:var(--header-bg);color:#fff;padding:24px 20px 30px;text-align:center}
.hero-content{max-width:500px;margin:0 auto}
.hero-logo{width:64px;height:64px;object-fit:contain;margin-bottom:12px;border-radius:14px}
.hero h1{font-size:30px;font-weight:700;margin-bottom:6px;letter-spacing:1px}
.hero-desc{font-size:15px;opacity:.85;margin-bottom:24px;line-height:1.7}
.hero-actions{display:flex;align-items:center;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-version{font-size:13px;opacity:.7}
.page-hero{background:var(--header-bg);color:#fff;padding:72px 20px}
.page-hero h1{font-size:30px;font-weight:700;margin-bottom:8px;letter-spacing:1px}
.page-hero .hero-desc{font-size:15px;opacity:.85;margin-bottom:0;line-height:1.7;max-width:600px;margin-left:auto;margin-right:auto}

/* ===== Buttons ===== */
.btn-primary{display:inline-block;background:#fff;color:var(--primary);padding:10px 28px;border-radius:8px;font-size:15px;font-weight:600;text-decoration:none;border:none;cursor:pointer;transition:all .15s}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,.15)}
.btn-primary.blue{background:var(--primary);color:#fff}
.btn-primary.blue:hover{background:var(--primary-dark)}
.hero .btn-primary,.page-hero .btn-primary{box-shadow:0 2px 12px rgba(0,0,0,.15)}
.btn-lg{padding:14px 40px;font-size:17px;border-radius:10px}
.btn-sm{padding:5px 14px;font-size:12px}

/* ===== Sections ===== */
.section-inner{max-width:1400px;margin:0 auto;padding:48px 24px}
.section-inner h2{font-size:20px;font-weight:600;margin-bottom:24px;text-align:center;color:var(--text)}

/* ===== Search ===== */
.search-section{background:var(--sidebar-bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:72px 20px}
.search-wrap{max-width:800px;margin:0 auto}
.search-bar{display:flex;align-items:center;background:var(--card-bg);border:2px solid var(--border);border-radius:32px;transition:border-color .15s;overflow:hidden}
.search-bar:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(95,158,254,.15)}
/* 搜索引擎下拉 */
#searchEngineSelectContainer{display:flex;align-items:center;justify-content:center;padding:0 0.6rem;border-right:1px solid var(--border);min-width:100px}
.engine-dropdown{appearance:none;-webkit-appearance:none;-moz-appearance:none;background:transparent;border:none;font-size:0.9rem;font-weight:500;color:var(--primary);cursor:pointer;padding:0.5rem 1.8rem 0.5rem 1.8rem;outline:none;text-align:center;text-align-last:center;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .6rem center;background-size:10px;border-radius:.5rem;transition:background-color .15s;width:100%}
.engine-dropdown:hover{background-color:rgba(95,158,254,.06)}
.engine-dropdown:focus{background-color:rgba(95,158,254,.08)}
.engine-dropdown option{background:var(--card-bg);color:var(--text);padding:.5rem}
.search-input{flex:1;border:none!important;padding:16px 12px;font-size:16px;background:transparent;color:var(--text);outline:none!important;box-shadow:none!important}
.search-input::placeholder{color:var(--text-light)}
.search-btn{background:var(--primary);color:#fff;border:none;padding:16px 28px;cursor:pointer;font-size:15px;font-weight:600;transition:background .15s;white-space:nowrap;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:0 32px 32px 0}
.search-btn:hover{background:var(--primary-dark)}
@media(max-width:640px){
    #searchEngineSelectContainer{padding:0 0 0 .8rem}
    .engine-dropdown{font-size:.82rem;padding:.4rem 1.5rem .4rem .2rem}
}

/* ===== Tools ===== */
.tools-section{background:var(--bg)}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.tool-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px 18px;text-align:center;text-decoration:none;color:var(--text);transition:all .15s}
.tool-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.06)}
.tool-icon{font-size:48px;margin-bottom:10px;display:flex;align-items:center;justify-content:center;height:56px}
.tool-icon img{width:48px;height:48px;object-fit:contain}
.tool-card h3{font-size:14px;margin-bottom:4px;font-weight:600}
.tool-card p{font-size:12px;color:var(--text-secondary)}

/* ===== Help Cards ===== */
.help-cards{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.help-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:22px 20px;transition:all .15s}
.help-card:hover{border-color:var(--primary);box-shadow:0 4px 16px rgba(0,0,0,.05)}
.help-card h3{font-size:15px;margin-bottom:8px;color:var(--primary)}
.help-card p{font-size:13px;color:var(--text-secondary);line-height:1.7}
.help-card ul{padding-left:18px;font-size:13px;color:var(--text-secondary)}
.help-card li{margin-bottom:4px}
.help-card kbd{background:var(--hover);border:1px solid var(--border);border-radius:3px;padding:1px 6px;font-size:11px;font-family:monospace}

/* ===== Version Table ===== */
.version-table-wrap{max-width:100%;margin:0 auto;overflow-x:auto}
.version-table{width:100%;border-collapse:collapse}
.version-table th{padding:12px 16px;border-bottom:2px solid var(--border);text-align:center;font-weight:600;color:var(--text-secondary);font-size:14px;background:var(--bg)}
.version-table td{padding:12px 16px;border-bottom:1px solid var(--border);text-align:center;font-size:14px}
.version-row{cursor:pointer;transition:background .1s}
.version-row:hover{background:var(--hover)}
.version-changelog{display:none}
.version-changelog.show{display:table-row}
.version-changelog td{padding:12px 16px 16px 24px;font-size:13px;color:var(--text-secondary);line-height:1.7;white-space:pre-wrap;background:var(--sidebar-bg)}

/* ===== Footer ===== */
.site-footer{background:var(--sidebar-bg);border-top:1px solid var(--border);padding:28px 20px 22px;text-align:center;font-size:13px;flex-shrink:0}
.footer-inner{max-width:1400px;margin:0 auto}
.footer-links{display:flex;gap:20px;justify-content:center;margin-bottom:12px}
.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:14px;transition:color .15s}
.footer-links a:hover{color:var(--primary)}
.footer-copy{color:var(--text-light)}
.footer-icp{margin-top:4px}
.footer-icp a{color:var(--text-light);text-decoration:none}
.footer-icp a:hover{color:var(--text-secondary)}

/* ===== 登录/注册弹窗 ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}
.modal.show { display: flex; }
.modal-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 32px 28px 28px;
    max-width: 420px;
    width: 92%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    position: relative;
}
.close-modal {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.15s;
    line-height: 1;
}
.close-modal:hover { color: var(--text); }
.modal-content h2 { font-size: 20px; margin-bottom: 20px; color: var(--text); }
.tab-buttons { display: flex; gap: 0; margin-bottom: 20px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.tab-buttons .tab { flex: 1; padding: 10px 0; cursor: pointer; font-size: 14px; font-weight: 500; background: var(--hover); color: var(--text-secondary); transition: all 0.15s; }
.tab-buttons .tab.active { background: var(--primary); color: #fff; }
.form-pane { display: none; }
.form-pane.active { display: block; }
.form-pane form { text-align: left; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.input-wrapper { position: relative; }
.input-wrapper input {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
    font-family: inherit;
    transition: border-color 0.15s;
    box-sizing: border-box;
}
.input-wrapper input:focus { border-color: var(--primary); }
.code-row { display: flex; gap: 8px; }
.code-row input { flex: 1; min-width: 0; }
.code-row .btn { padding: 10px 16px; font-size: 13px; white-space: nowrap; width: auto; flex-shrink: 0; }
.error-msg { color: #ef4444; font-size: 13px; margin-bottom: 10px; min-height: 18px; }
.form-pane .btn { width: 100%; padding: 12px; font-size: 15px; border-radius: 10px; margin-top: 4px; }

/* ===== 悬浮卡通形象 ===== */
.floating-leaf-wrapper {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9990;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}
.leaf-bubble {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 28px;
    padding: 8px 18px;
    max-width: 220px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    position: absolute;
    bottom: 50%;
    right: 100%;
    margin-right: 12px;
    transform: translateY(50%);
    white-space: nowrap;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    font-family: 'Inter', 'Segoe UI Emoji', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: #2c3e50;
    text-align: center;
    animation: bubbleFadeIn 0.3s ease;
}
@keyframes bubbleFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.bubble-tail {
    position: absolute;
    top: 50%;
    right: -10px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 12px solid rgba(255, 255, 255, 0.96);
    filter: drop-shadow(2px 0 2px rgba(0, 0, 0, 0.08));
}
.bubble-content { word-break: break-all; }
.leaf-menu {
    position: absolute;
    bottom: 0;
    right: 100%;
    margin-right: 12px;
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border-radius: 28px;
    padding: 12px 0;
    min-width: 180px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    display: none;
    flex-direction: column;
    transition: opacity 0.2s;
    z-index: 9991;
}
.leaf-menu.show { display: flex; }
.leaf-menu-item {
    display: block;
    padding: 10px 18px;
    font-size: 13px;
    color: var(--text);
    text-decoration: none;
    transition: background 0.12s;
    cursor: pointer;
}
.leaf-menu-item:hover { background: var(--hover); }
.floating-leaf {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffb347, #ff8c00);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    overflow: hidden;
    transition: none;
    position: relative;
}
.floating-leaf:hover {
    animation-play-state: paused !important;
    transform: none !important;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}
.floating-leaf img { width: 80%; height: 80%; object-fit: contain; }
.leaf-emoji { font-size: 60px; }

/* 卡通形象动画 */
.floating-leaf.float { animation: leafFloat 3s ease-in-out infinite; }
@keyframes leafFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.floating-leaf.rotate:hover { animation: leafRotate 0.6s ease; }
@keyframes leafRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.floating-leaf.bounce { animation: leafBounce 1s ease infinite; }
@keyframes leafBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ===== Toast 通知 ===== */
#toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10001;
    background: var(--card-bg);
    color: var(--text);
    padding: 12px 24px;
    border-radius: 30px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    font-size: 14px;
    font-weight: 600;
    display: none;
    transition: opacity 0.3s;
    white-space: nowrap;
    border: 1px solid var(--border);
}

/* ===== 全局弹窗 ===== */
#globalModal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}
#globalModal.show { display: flex; }

/* ===== 登录弹窗美化 ===== */

/* 登录/注册弹窗内容 */
.login-modal-content {
    max-width: 420px;
    padding: 36px 32px 28px;
    border-radius: 24px;
    position: relative;
}

/* 获取二维码按钮 */
.btn-qr {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    width: auto;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 3px 12px rgba(95,158,254,0.3);
    font-family: inherit;
}
.btn-qr:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(95,158,254,0.4);
}
.btn-qr:active { transform: translateY(0); }
.btn-qr:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}
.btn-qr-icon { font-size: 16px; }
.btn-qr-text { font-size: 13px; }

/* 验证码输入区域 */
.code-row {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.code-input-wrap {
    flex: 1;
    min-width: 0;
    position: relative;
}
.code-input-wrap input {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 4px;
    text-align: center;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
    font-family: 'Courier New', monospace;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}
.code-input-wrap input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(95,158,254,0.15);
}
.code-input-wrap input::placeholder {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0;
    color: var(--text-light);
}
.code-hint {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 4px;
    padding-left: 2px;
}

/* 提交按钮 */
.btn-submit {
    width: 100%;
    padding: 13px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 12px;
    margin-top: 6px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 14px rgba(95,158,254,0.3);
    font-family: inherit;
}
.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(95,158,254,0.4);
}

/* ===== 二维码弹窗美化 ===== */
.qr-modal .modal-content {
    max-width: 380px;
    padding: 0;
    border-radius: 24px;
    overflow: hidden;
    border: 2px solid var(--primary-light, #80b2ff);
    background: rgba(255,255,255,0.98);
}

.qr-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 26px;
    cursor: pointer;
    color: var(--primary-dark, #4a8ae8);
    background: none;
    border: none;
    z-index: 10;
    line-height: 1;
    padding: 4px 8px;
    border-radius: 8px;
    transition: all 0.15s;
}
.qr-modal-close:hover {
    color: var(--primary);
    background: rgba(95,158,254,0.1);
}

.qr-modal-header {
    background: linear-gradient(135deg, #e8f0fe 0%, #d6e4fd 100%);
    padding: 28px 24px 20px;
    text-align: center;
    border-bottom: 1px solid var(--primary-light, #80b2ff);
}
.qr-modal-header h3 {
    font-size: 1.15rem;
    color: var(--primary-dark, #4a8ae8);
    font-weight: 700;
    margin: 0 0 6px;
}
.qr-modal-sub {
    font-size: 0.82rem;
    color: var(--primary, #5F9EFE);
    margin: 0;
}

.qr-code-container {
    padding: 32px 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    background: #f0f5ff;
}
.qr-code-container img {
    width: 200px;
    height: 200px;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(95,158,254,0.35);
}
.qr-img {
    width: 200px;
    height: 200px;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(95,158,254,0.35);
}
.qr-tip {
    font-size: 0.82rem;
    color: var(--primary, #5F9EFE);
    margin-top: 10px;
    text-align: center;
}

.qr-modal-actions {
    padding: 0 24px 16px;
    display: flex;
    justify-content: center;
    background: #f0f5ff;
}
.btn-qr-refresh {
    padding: 10px 24px;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 600;
    background: var(--card-bg);
    color: var(--primary, #5F9EFE);
    border: 2px solid var(--primary-light, #80b2ff);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-qr-refresh:hover {
    background: #e8f0fe;
    border-color: var(--primary, #5F9EFE);
}

.qr-modal-tip {
    padding: 16px 24px 24px;
    background: #f0f5ff;
    border-top: 1px solid #d6e4fd;
}
.qr-modal-tip p {
    font-size: 0.8rem;
    color: var(--primary, #5F9EFE);
    margin: 0 0 6px;
    line-height: 1.5;
}
.qr-modal-tip p:last-child { margin-bottom: 0; }
.qr-modal-tip strong { color: var(--primary-dark, #4a8ae8); }