1

agent/application/states/conversation.py

@@ -2,7 +2,7 @@
 """
 会话状态
 """
-from datetime import datetime
+from datetime import date as Date, datetime
 from typing import AsyncGenerator
 
 from pydantic_ai import DeferredToolRequests, DeferredToolResults, ToolApproved
@@ -388,10 +388,7 @@ class ConversationState(rx.State):
 
                 # 运行并流式输出事件
                 stream_events = run_stream_events(
-                    deps=Deps(
-                        account_id=conversation.workflow.deps["account_id"],
-                        connection_pool=connection_pool,
-                    ),
+                    user_id=self.user_id,
                     user_prompt=user_prompt,
                     message_history=message_history,
                     usage=usage,
@@ -696,10 +693,17 @@ class ConversationState(rx.State):
         match type:
             # 预定航班
             case WorkflowType.BOOK_FLIGHT:
-                from application.workshop.book_flight import deps
+                from application.workshop.book_flight import Deps
 
                 # 初始化预定航班工作流
-                workflow = Workflow(type=type, deps=deps)
+                workflow = Workflow(
+                    type=type,
+                    deps=Deps(
+                        date=Date(2025, 1, 10),
+                        origin_airport_code="SFO",
+                        destination_airport_code="ANC",
+                    ),
+                )
                 # 设置用户提示词
                 self.set_user_prompt(
                     f"帮我查询并预定在 {workflow.deps.date.strftime('%Y-%m-%d')} 从 {workflow.deps.origin_airport_code} 到 {workflow.deps.destination_airport_code} 的航班"
@@ -707,8 +711,10 @@ class ConversationState(rx.State):
 
             # 银行客户服务
             case WorkflowType.BANK_CUSTOMER_SERVICE:
+                from application.workshop.bank_customer_service import Deps
+
                 # 初始化银行客户服务工作流
-                workflow = Workflow(type=type, deps={"account_id": self.user_id})
+                workflow = Workflow(type=type)
                 # 设置用户提示词
                 self.set_user_prompt(f"帮我查询账户余额")
 

agent/application/workshop/bank_customer_service.py

@@ -2,9 +2,8 @@
 """
 银行客户服务
 """
-from typing import Any, AsyncGenerator
+from typing import AsyncGenerator
 
-from asyncpg import Pool
 from pydantic import BaseModel, Field
 from pydantic_ai import (
     Agent,
@@ -18,6 +17,7 @@ from pydantic_ai import (
 from pydantic_ai.messages import AgentStreamEvent
 from pydantic_ai.run import AgentRunResultEvent
 
+from application.workshop.database import connection_pool
 from application.workshop.models import (
     DEEPSEEK_V4_FLASH_CHAT_MODEL,
     DEEPSEEK_V4_FLASH_CHAT_MODEL_SETTINGS,
@@ -29,48 +29,51 @@ class Deps(BaseModel):
     依赖类
     """
 
-    model_config = {"arbitrary_types_allowed": True}  # 允许任意类型
-
-    account_id: str = Field(..., description="账户唯一标识")
-    connection_pool: Pool = Field(..., description="连接池")
+    user_id: str = Field(..., description="用户唯一标识")
 
 
-# 账户上下文能力
-account_context = Capability[Deps](
-    id="account-context",
-    description="提供账户信息，用于客服应答",
-    defer_loading=False,  # 延迟加载置为否，立即加载
+# 用户上下文能力
+user_context = Capability[Deps](
+    id="user-context",
+    description="提供用户信息，用于客服应答",
+    defer_loading=False,  # 延迟加载置为否(立即加载)
 )
 
 
-@account_context.instructions
-async def query_account_name(ctx: RunContext[Deps]) -> str:
+@user_context.instructions
+async def query_user_name(ctx: RunContext[Deps]) -> str:
     """
-    查询账户户名
+    查询用户姓名
     """
-    async with ctx.deps.connection_pool.acquire() as conn:
-        account_name = await conn.fetchval(
-            "SELECT account_name FROM bank_customer_service WHERE account_id = $1",
-            ctx.deps.account_id,
+    if connection_pool is None:
+        return "数据库连接池未初始化"
+
+    async with connection_pool.acquire() as conn:
+        user_name = await conn.fetchval(
+            "SELECT user_name FROM bank_customer_service WHERE user_id = $1",
+            ctx.deps.user_id,
         )
-    if account_name is None:
-        return "该账户不存在"
-    return f"该账户户名是 {account_name!r}"
+    if user_name is None:
+        return "该用户不存在"
+    return f"用户姓名是 {user_name!r}"
 
 
-@account_context.tool(name="查询账户余额")
-async def query_account_balance(ctx: RunContext[Deps]) -> str:
+@user_context.tool(name="查询账户余额")
+async def query_balance(ctx: RunContext[Deps]) -> str:
     """
     查询账户余额
     """
-    async with ctx.deps.connection_pool.acquire() as conn:
+    if connection_pool is None:
+        return "数据库连接池未初始化"
+
+    async with connection_pool.acquire() as conn:
         account_balance = await conn.fetchval(
-            "SELECT account_balance FROM bank_customer_service WHERE account_id = $1",
-            ctx.deps.account_id,
+            "SELECT account_balance FROM bank_customer_service WHERE user_id = $1",
+            ctx.deps.user_id,
         )
     if account_balance is None:
-        return "该账户不存在"
-    return f"该账户余额： {account_balance:.2f}"
+        return "该用户不存在"
+    return f"该用户的账户余额: {account_balance:.2f}"
 
 
 # 智能体
@@ -80,7 +83,7 @@ agent = Agent[Deps, str](
     deps_type=Deps,
     output_type=str,  # 若输出类型为 str，则智能体输出结果时不进行输出类型校验。若定义输出类型，需考虑处理相应事件
     instructions="你是我方银行的客服智能体，为客户提供客服应答。",  # 优先使用 instructions
-    capabilities=[account_context],
+    capabilities=[user_context],
 )
 
 """
@@ -131,7 +134,7 @@ PartEndEvent(index=0, part=TextPart(content='您好，刘弼仁先生。您账
 
 
 async def run_stream_events(
-    deps: Any,
+    user_id: str,
     user_prompt: str | None,
     message_history: list[ModelMessage],
     usage: RunUsage,
@@ -141,17 +144,13 @@ async def run_stream_events(
     """
     运行并流式输出事件
     """
-    if not isinstance(deps, Deps):
-        deps = Deps.model_validate(deps)
-
     async with agent.run_stream_events(
         user_prompt=user_prompt,
-        deps=deps,
+        deps=Deps(user_id=user_id),
         message_history=message_history,
         usage=usage,
         usage_limits=usage_limits,
         deferred_tool_results=deferred_tool_results,
     ) as events:
         async for event in events:
-            print(event)
             yield event

agent/application/workshop/book_flight.py

@@ -2,7 +2,7 @@
 """
 预定航班工作流（范式）
 """
-import datetime
+from datetime import date as Date
 from typing import Any, AsyncGenerator, cast
 
 from pydantic import BaseModel, Field, field_validator
@@ -39,7 +39,7 @@ class Flight(BaseModel):
     """
 
     number: str = Field(..., description="航班号")
-    date: datetime.date = Field(..., description="日期")
+    date: Date = Field(..., description="日期")
     origin_airport_code: str = Field(..., description="出发机场代码")
     destination_airport_code: str = Field(..., description="到达机场代码")
     airfare: int = Field(..., description="机票价格")
@@ -62,7 +62,7 @@ class Deps(BaseModel):
     依赖类
     """
 
-    date: datetime.date = Field(..., description="日期")
+    date: Date = Field(..., description="日期")
     origin_airport_code: str = Field(..., description="出发机场代码")
     destination_airport_code: str = Field(..., description="到达机场代码")
     searched_flights: list[Flight] | None = Field(
@@ -277,13 +277,6 @@ async def validate_output(
     return output
 
 
-deps = Deps(
-    date=datetime.date(2025, 1, 10),
-    origin_airport_code="SFO",
-    destination_airport_code="ANC",
-)
-
-
 async def run_stream_events(
     deps: Any,
     user_prompt: str | None,

agent/application/workshop/research.py

@@ -3,15 +3,27 @@
 研究
 """
 from typing import AsyncGenerator
-
+from asyncpg import Pool
 import httpx
-from pydantic import BaseModel, Field
-from pydantic_ai import Agent, ModelMessage, RunContext, RunUsage
+from pydantic import BaseModel, Field, cast
+from pydantic_ai import Agent, ModelMessage, RunContext
+from pydantic_ai.usage import RunUsage
 from pydantic_ai.messages import AgentStreamEvent
 from pydantic_ai.run import AgentRunResultEvent
 from pydantic_ai.toolsets import FunctionToolset
+from sqlmodel import REAL
 
 from application.workshop.models import DEEPSEEK_V4_FLASH_RESPONSE_MODEL
+from application.workshop.database import connection_pool
+
+
+class Deps(BaseModel):
+    """
+    依赖类
+    """
+
+    model_config = {"arbitrary_types_allowed": True}  # 允许任意类型
+    connection_pool: Pool = Field(..., description="连接池")
 
 
 class Args(BaseModel):
@@ -22,11 +34,11 @@ class Args(BaseModel):
 bocha_web_search = FunctionToolset()
 
 
-@bocha_web_search.tool_plain()  # 普通工具：不使用运行上下文
-async def web_search(args: Args) -> str:
+@bocha_web_search.tool(name="联网搜索")  # type: ignore
+async def web_search(ctx: RunContext[Deps], args: Args) -> str:
     """
     联网搜索工具：
-    用于查询互联网实时信息、新闻、政策、行业报告、企业公告、最新数据。
+    用于查询互联网实时信息、新闻、政策法规、行业报告、企业公告、最新数据。
     适合查询模型静态知识库不存在的外部网页信息。
     回答时必须标注引用来源URL，禁止编造链接。
     不要用于简单常识、数学计算、代码编写等无需联网的任务。
@@ -89,17 +101,66 @@ async def web_search(args: Args) -> str:
 
 instruction = """
 你是研究助手，可调用联网搜索工具。
-1. 事实、时效、外部资料类问题必须搜索；静态常识可直接回答，支持多次检索、改写query。
-2. 优先采用一手资料、官方权威信源，慎用自媒体与转载内容。
-3. 所有事实描述必须标注来源链接，引用格式：`[参考{序号}] {URL}`，序号匹配搜索结果编号。
-4. 严格区分：【事实】来自网页原文；【推论】基于事实推导；资料不足时标注【推测】，不可当作事实。
-5. 严禁编造链接和事实；证据不足直接说明，不要强行下结论。
-6. 组织回答：先陈列证据，再总结结论，结论不能超出资料支撑范围。
+
+## 一、联网判断
+需要联网：时效类信息、新闻、声明公告、政策法规、最新数据，以及模型静态知识库无法可靠回答的问题。
+无需联网：基础常识、数学计算、代码编写与解释、用户已提供完整材料的分析任务、无时间依赖的静态问题。
+
+【搜索硬约束】
+1. 最多**2轮联网搜索**，严禁发起第3轮；优先在第一轮构造高信息密度的Query尝试获取完整答案，非必要不执行第二轮搜索。
+2. 发起新一轮搜索前，必须评估已获取的搜索摘要，现有信息足以回答问题则立即停止调用工具。
+3. 禁止仅改写同义词、做语义几乎等价的重复搜索；若存在局部信息缺失，优先从已有结果中提取可用内容，不要直接发起新搜索。
+
+## 二、时间与Query规则
+时效判断严格以运行时传入的当前日期、年份、时区为准，禁止依靠模型内置记忆猜测时间。
+- 用户未指定年份：**禁止自行向搜索Query中追加年份**。
+- 用户明确给出年份：搜索Query必须完整保留用户指定的年份。
+
+## 三、搜索效率
+默认只执行1次真实联网搜索；拿到搜索结果后评估证据，满足以下任意条件，必须停止搜索：
+- 现有信息足以作答；官方一手资料已给出答案；多个可靠来源结论一致；继续搜索仅起到重复确认的作用。
+
+❌禁止以“再次确认、查找更多来源、补充更多资料”等理由发起额外搜索。
+
+✅仅在以下4种场景，才允许执行第2轮搜索：
+①第一轮无有效搜索结果；②回答问题必需的关键事实完全缺失；③权威信源之间事实存在明显冲突；④第一轮搜索结果严重偏题。
+
+第二轮搜索必须瞄准明确的信息缺口，禁止全盘复刻上一轮查询；**不允许单次回合同时生成多条搜索请求**。
+严格执行流程：执行搜索 → 阅读解析结果 → 判断信息缺口 → 再决定是否发起二次搜索。
+
+## 四、信源优先级
+1级（最高）：官网、官方文档、官方公告、一手原始资料
+2级：权威媒体、专业机构、科研机构
+3级：其他可信赖网页
+
+官方资料已经可以完整回答问题时，无需再搜索其他来源做重复验证。
+自媒体、论坛、转载内容，不可作为重大事实的唯一证据。
+
+## 五、最新内容校验
+查询“最新”类问题，不可仅凭网页排序判断时效性；必须核对资料的**发布时间、版本时间，结合运行时提供的当前日期综合判断**。
+当存在多份结果时，优先选用发布时间更近、信源等级更高的资料。
+
+## 六、事实规范
+- 【事实】：搜索返回资料原文直接支持的内容
+- 【推论】：基于已确认事实做合理推导
+- 【推测】：证据不足前提下的主观判断
+
+严禁编造URL、日期、新闻事件、数据、官方声明等任何信息；证据不足时直接如实说明，不得强行得出结论。
+
+## 七、引用规范
+引用编号区分搜索轮次：S1‑1、S1‑2 代表第1轮搜索结果；S2‑1、S2‑2 代表第2轮搜索结果。
+只引用回答中实际用到的资料。
+引用格式：`[参考 S1‑1] https://xxx`，链接必须来源于 **web_search** 工具返回结果，禁止编造链接。
+
+## 八、输出规则
+简单事实类问题：优先给出结论，附带关键证据与来源，回答简洁，避免冗余。
+复杂研究类问题，按「关键证据 → 分析 → 结论 → 参考来源」结构组织内容；先陈列证据再输出总结，结论不能超出现有资料可支撑的范围。
 """
 
 # 智能体
-agent = Agent(
+agent = Agent[Deps, str](
     model=DEEPSEEK_V4_FLASH_RESPONSE_MODEL,
+    deps_type=Deps,
     output_type=str,  # 若输出类型为 str，则智能体输出结果时不进行输出类型校验。若定义输出类型，需考虑处理相应事件
     instructions=instruction,
     toolsets=[bocha_web_search],
@@ -118,7 +179,11 @@ async def run_stream_events(
     :param usage: 使用量
     :return: AsyncGenerator
     """
+    if connection_pool is None:
+        return
+
     async with agent.run_stream_events(
+        deps=Deps(connection_pool=connection_pool),
         user_prompt=user_prompt,
         message_history=message_history,
         usage=usage,

玄潮官网/css/style.css

@@ -0,0 +1,235 @@
+/* ==================== 玄潮科技 - Custom Styles ==================== */
+
+/* ----- Base ----- */
+* {
+    scroll-behavior: smooth;
+}
+
+body {
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    overflow-x: hidden;
+}
+
+/* ----- Hero Background Pattern ----- */
+.hero-pattern {
+    background-image:
+        linear-gradient(rgba(154, 25, 30, 0.03) 1px, transparent 1px),
+        linear-gradient(90deg, rgba(154, 25, 30, 0.03) 1px, transparent 1px);
+    background-size: 50px 50px;
+    background-position: center center;
+}
+
+.hero-pattern::before {
+    content: '';
+    position: absolute;
+    inset: 0;
+    background-image: radial-gradient(circle, rgba(154, 25, 30, 0.08) 1px, transparent 1px);
+    background-size: 30px 30px;
+}
+
+/* ----- Floating Animations ----- */
+@keyframes float-slow {
+    0%, 100% { transform: translate(0, 0) scale(1); }
+    50% { transform: translate(30px, -30px) scale(1.05); }
+}
+
+@keyframes float-delayed {
+    0%, 100% { transform: translate(0, 0) scale(1); }
+    50% { transform: translate(-20px, 20px) scale(0.95); }
+}
+
+.animate-float-slow {
+    animation: float-slow 8s ease-in-out infinite;
+}
+
+.animate-float-delayed {
+    animation: float-delayed 10s ease-in-out infinite;
+    animation-delay: 2s;
+}
+
+/* ----- Scroll Indicator Bounce ----- */
+@keyframes bounce-slow {
+    0%, 100% { transform: translateY(0); opacity: 0.5; }
+    50% { transform: translateY(10px); opacity: 0.8; }
+}
+
+.animate-bounce-slow {
+    animation: bounce-slow 2s ease-in-out infinite;
+}
+
+/* ----- Reveal Animations (Scroll-triggered) ----- */
+.reveal-up,
+.reveal-left,
+.reveal-right {
+    opacity: 0;
+    transform: translateY(30px);
+    transition: opacity 0.8s ease, transform 0.8s ease;
+}
+
+.reveal-left {
+    transform: translateX(-40px);
+}
+
+.reveal-right {
+    transform: translateX(40px);
+}
+
+.reveal-up.revealed,
+.reveal-left.revealed,
+.reveal-right.revealed {
+    opacity: 1;
+    transform: translate(0, 0);
+}
+
+/* Apply reveal animation to elements that have inline animation-delay */
+.reveal-up {
+    animation: none;
+}
+
+.reveal-up[style*="animation-delay"] {
+    transition-delay: var(--reveal-delay, 0s);
+}
+
+/* ----- Nav Link Active State ----- */
+.nav-link.active {
+    color: #9a191e;
+    background-color: #fdf0ee;
+}
+
+.nav-link.active::after {
+    content: '';
+    display: block;
+    width: 20px;
+    height: 2px;
+    background: #9a191e;
+    margin: 2px auto 0;
+    border-radius: 2px;
+}
+
+/* ----- Header Scroll Effect ----- */
+#header.scrolled {
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
+}
+
+/* ----- Service Card Hover ----- */
+.service-card:hover {
+    transform: translateY(-4px);
+}
+
+/* ----- Advantage Card Hover ----- */
+.advantage-card:hover {
+    transform: translateY(-4px);
+}
+
+/* ----- Industry Card Hover ----- */
+.industry-card:hover {
+    transform: translateY(-3px);
+}
+
+/* ----- Stat Card Hover ----- */
+.stat-card:hover {
+    transform: translateY(-4px);
+}
+
+/* ----- Form Input Styles ----- */
+.form-input:focus {
+    outline: none;
+    box-shadow: 0 0 0 3px rgba(154, 25, 30, 0.15);
+    border-color: #9a191e;
+}
+
+.form-input.error {
+    border-color: #ef4444;
+    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
+}
+
+/* ----- Back to Top Button ----- */
+#back-to-top.visible {
+    opacity: 1;
+    visibility: visible;
+}
+
+/* ----- Custom Scrollbar ----- */
+::-webkit-scrollbar {
+    width: 8px;
+}
+
+::-webkit-scrollbar-track {
+    background: #f1f5f9;
+}
+
+::-webkit-scrollbar-thumb {
+    background: #94a3b8;
+    border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: #64748b;
+}
+
+/* ----- Selection ----- */
+::selection {
+    background: rgba(154, 25, 30, 0.2);
+    color: #171717;
+}
+
+/* ----- Mobile Menu Transition ----- */
+#mobile-menu {
+    transition: max-height 0.3s ease, opacity 0.3s ease;
+    overflow: hidden;
+}
+
+#mobile-menu.show {
+    display: block;
+    animation: slideDown 0.3s ease;
+}
+
+@keyframes slideDown {
+    from {
+        opacity: 0;
+        transform: translateY(-10px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+/* ----- Gradient Text ----- */
+.text-gradient {
+    background: linear-gradient(135deg, #e53935, #9a191e);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+}
+
+/* ----- Responsive Adjustments ----- */
+@media (max-width: 768px) {
+    .service-card,
+    .advantage-card,
+    .stat-card,
+    .industry-card {
+        transform: none;
+    }
+
+    .reveal-left,
+    .reveal-right {
+        transform: translateY(30px);
+    }
+
+    .reveal-left.revealed,
+    .reveal-right.revealed {
+        transform: translate(0, 0);
+    }
+}
+
+/* ----- Print Styles ----- */
+@media print {
+    header,
+    #back-to-top,
+    .animate-float-slow,
+    .animate-float-delayed {
+        display: none !important;
+    }
+}

玄潮官网/js/main.js

@@ -0,0 +1,307 @@
+/* ==================== 玄潮科技 - Main JavaScript ==================== */
+
+(function () {
+    'use strict';
+
+    /* ----- DOM Ready ----- */
+    document.addEventListener('DOMContentLoaded', function () {
+        initMobileMenu();
+        initSmoothScroll();
+        initHeaderScroll();
+        initActiveNav();
+        initRevealAnimations();
+        initCounters();
+        initBackToTop();
+        initContactForm();
+        initFooterYear();
+    });
+
+    /* ==================== Mobile Menu ==================== */
+    function initMobileMenu() {
+        var btn = document.getElementById('mobile-menu-btn');
+        var menu = document.getElementById('mobile-menu');
+        if (!btn || !menu) return;
+
+        btn.addEventListener('click', function () {
+            menu.classList.toggle('hidden');
+            var icon = btn.querySelector('i');
+            if (menu.classList.contains('hidden')) {
+                icon.className = 'fas fa-bars text-xl';
+            } else {
+                icon.className = 'fas fa-xmark text-xl';
+            }
+        });
+
+        // Close mobile menu when a link is clicked
+        var links = menu.querySelectorAll('.mobile-nav-link');
+        links.forEach(function (link) {
+            link.addEventListener('click', function () {
+                menu.classList.add('hidden');
+                btn.querySelector('i').className = 'fas fa-bars text-xl';
+            });
+        });
+    }
+
+    /* ==================== Smooth Scroll ==================== */
+    function initSmoothScroll() {
+        var links = document.querySelectorAll('a[href^="#"]');
+        links.forEach(function (link) {
+            link.addEventListener('click', function (e) {
+                var href = link.getAttribute('href');
+                if (href === '#' || href === '') return;
+                var target = document.querySelector(href);
+                if (!target) return;
+                e.preventDefault();
+                var headerHeight = document.getElementById('header').offsetHeight;
+                var targetPos = target.getBoundingClientRect().top + window.pageYOffset - headerHeight + 1;
+                window.scrollTo({
+                    top: targetPos,
+                    behavior: 'smooth'
+                });
+            });
+        });
+    }
+
+    /* ==================== Header Scroll Effect ==================== */
+    function initHeaderScroll() {
+        var header = document.getElementById('header');
+        if (!header) return;
+        window.addEventListener('scroll', function () {
+            if (window.scrollY > 10) {
+                header.classList.add('scrolled');
+            } else {
+                header.classList.remove('scrolled');
+            }
+        });
+    }
+
+    /* ==================== Active Nav Highlighting ==================== */
+    function initActiveNav() {
+        var sections = document.querySelectorAll('section[id]');
+        var navLinks = document.querySelectorAll('.nav-link');
+        if (!sections.length || !navLinks.length) return;
+
+        var observer = new IntersectionObserver(function (entries) {
+            entries.forEach(function (entry) {
+                if (entry.isIntersecting) {
+                    var id = entry.target.getAttribute('id');
+                    navLinks.forEach(function (link) {
+                        if (link.getAttribute('href') === '#' + id) {
+                            link.classList.add('active');
+                            link.classList.remove('text-gray-600');
+                        } else {
+                            link.classList.remove('active');
+                            link.classList.add('text-gray-600');
+                        }
+                    });
+                }
+            });
+        }, {
+            rootMargin: '-40% 0px -55% 0px'
+        });
+
+        sections.forEach(function (section) {
+            observer.observe(section);
+        });
+    }
+
+    /* ==================== Reveal Animations ==================== */
+    function initRevealAnimations() {
+        var elements = document.querySelectorAll('.reveal-up, .reveal-left, .reveal-right');
+        if (!elements.length) return;
+
+        // Set animation delay from inline style
+        elements.forEach(function (el) {
+            var styleDelay = el.style.animationDelay;
+            if (styleDelay) {
+                el.style.setProperty('--reveal-delay', styleDelay);
+            }
+        });
+
+        var observer = new IntersectionObserver(function (entries) {
+            entries.forEach(function (entry) {
+                if (entry.isIntersecting) {
+                    entry.target.classList.add('revealed');
+                    observer.unobserve(entry.target);
+                }
+            });
+        }, {
+            threshold: 0.15,
+            rootMargin: '0px 0px -50px 0px'
+        });
+
+        elements.forEach(function (el) {
+            observer.observe(el);
+        });
+    }
+
+    /* ==================== Counter Animation ==================== */
+    function initCounters() {
+        var counters = document.querySelectorAll('.counter');
+        if (!counters.length) return;
+
+        var observer = new IntersectionObserver(function (entries) {
+            entries.forEach(function (entry) {
+                if (entry.isIntersecting) {
+                    animateCounter(entry.target);
+                    observer.unobserve(entry.target);
+                }
+            });
+        }, {
+            threshold: 0.5
+        });
+
+        counters.forEach(function (counter) {
+            observer.observe(counter);
+        });
+    }
+
+    function animateCounter(el) {
+        var target = parseInt(el.getAttribute('data-target'), 10);
+        var duration = 2000;
+        var startTime = null;
+
+        function step(timestamp) {
+            if (!startTime) startTime = timestamp;
+            var progress = Math.min((timestamp - startTime) / duration, 1);
+            // Ease out cubic
+            var eased = 1 - Math.pow(1 - progress, 3);
+            var current = Math.floor(eased * target);
+            el.textContent = current;
+            if (progress < 1) {
+                requestAnimationFrame(step);
+            } else {
+                el.textContent = target;
+            }
+        }
+
+        requestAnimationFrame(step);
+    }
+
+    /* ==================== Back to Top ==================== */
+    function initBackToTop() {
+        var btn = document.getElementById('back-to-top');
+        if (!btn) return;
+
+        window.addEventListener('scroll', function () {
+            if (window.scrollY > 500) {
+                btn.classList.add('visible');
+                btn.classList.remove('opacity-0', 'invisible');
+            } else {
+                btn.classList.remove('visible');
+                btn.classList.add('opacity-0', 'invisible');
+            }
+        });
+
+        btn.addEventListener('click', function () {
+            window.scrollTo({
+                top: 0,
+                behavior: 'smooth'
+            });
+        });
+    }
+
+    /* ==================== Contact Form ==================== */
+    function initContactForm() {
+        var form = document.getElementById('contact-form');
+        if (!form) return;
+
+        var successMsg = document.getElementById('form-success');
+
+        form.addEventListener('submit', function (e) {
+            e.preventDefault();
+
+            // Clear previous errors
+            var errorMessages = form.querySelectorAll('.error-msg');
+            errorMessages.forEach(function (msg) { msg.classList.add('hidden'); });
+            var inputs = form.querySelectorAll('.form-input');
+            inputs.forEach(function (input) { input.classList.remove('error'); });
+
+            var isValid = true;
+
+            // Validate name
+            var name = document.getElementById('name');
+            if (!name.value.trim()) {
+                showError(name, 'name');
+                isValid = false;
+            }
+
+            // Validate phone (Chinese phone: 11 digits starting with 1, or landline)
+            var phone = document.getElementById('phone');
+            var phoneVal = phone.value.trim();
+            if (!phoneVal || !/^[\d\s\-+()]{7,20}$/.test(phoneVal)) {
+                showError(phone, 'phone');
+                isValid = false;
+            }
+
+            // Validate email
+            var email = document.getElementById('email');
+            var emailVal = email.value.trim();
+            if (!emailVal || !/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(emailVal)) {
+                showError(email, 'email');
+                isValid = false;
+            }
+
+            // Validate company
+            var company = document.getElementById('company');
+            if (!company.value.trim()) {
+                showError(company, 'company');
+                isValid = false;
+            }
+
+            // Validate message
+            var message = document.getElementById('message');
+            if (!message.value.trim()) {
+                showError(message, 'message');
+                isValid = false;
+            }
+
+            if (isValid) {
+                // === Submit logic ===
+                // 此处可对接后端API，示例：
+                // fetch('/api/contact', { method: 'POST', body: new FormData(form) })
+                //     .then(res => res.json())
+                //     .then(data => { ... })
+                //     .catch(err => { ... });
+
+                // 模拟提交成功
+                form.style.display = 'none';
+                successMsg.classList.remove('hidden');
+
+                // 5秒后恢复表单
+                setTimeout(function () {
+                    form.reset();
+                    form.style.display = '';
+                    successMsg.classList.add('hidden');
+                }, 5000);
+            }
+        });
+
+        function showError(input, fieldId) {
+            input.classList.add('error');
+            var errorMsg = input.parentElement.querySelector('.error-msg');
+            if (errorMsg) {
+                errorMsg.classList.remove('hidden');
+            }
+        }
+
+        // Clear error on input
+        var allInputs = form.querySelectorAll('.form-input');
+        allInputs.forEach(function (input) {
+            input.addEventListener('input', function () {
+                input.classList.remove('error');
+                var errorMsg = input.parentElement.querySelector('.error-msg');
+                if (errorMsg) errorMsg.classList.add('hidden');
+            });
+        });
+    }
+
+    /* ==================== Footer Year ==================== */
+    function initFooterYear() {
+        var yearEl = document.getElementById('current-year');
+        if (yearEl) {
+            yearEl.textContent = new Date().getFullYear();
+        }
+    }
+
+})();